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tesseract.js
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update package.json

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Guillermo 8 years ago
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3 changed files with 479 additions and 844 deletions
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  1. 755
      dist/tesseract.js
  2. 566
      dist/worker.js
  3. 2
      package.json

755
dist/tesseract.js vendored
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@ -1,377 +1,78 @@
(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.Tesseract = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){ (function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.Tesseract = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
'use strict'; exports.defaultOptions = {
/* eslint-disable no-unused-vars */ langPath: 'https://cdn.rawgit.com/naptha/tessdata/gh-pages/3.02/',
var hasOwnProperty = Object.prototype.hasOwnProperty; // workerPath: 'dist/worker.js',
var propIsEnumerable = Object.prototype.propertyIsEnumerable; workerPath: 'https://cdn.rawgit.com/naptha/tesseract.js/0.1.3/dist/worker.js',
tesseractPath: 'https://cdn.rawgit.com/naptha/tesseract.js-core/0.1.0/index.js',
function toObject(val) {
if (val === null || val === undefined) {
throw new TypeError('Object.assign cannot be called with null or undefined');
}
return Object(val);
}
function shouldUseNative() {
try {
if (!Object.assign) {
return false;
}
// Detect buggy property enumeration order in older V8 versions.
// https://bugs.chromium.org/p/v8/issues/detail?id=4118
var test1 = new String('abc'); // eslint-disable-line
test1[5] = 'de';
if (Object.getOwnPropertyNames(test1)[0] === '5') {
return false;
}
// https://bugs.chromium.org/p/v8/issues/detail?id=3056
var test2 = {};
for (var i = 0; i < 10; i++) {
test2['_' + String.fromCharCode(i)] = i;
}
var order2 = Object.getOwnPropertyNames(test2).map(function (n) {
return test2[n];
});
if (order2.join('') !== '0123456789') {
return false;
}
// https://bugs.chromium.org/p/v8/issues/detail?id=3056
var test3 = {};
'abcdefghijklmnopqrst'.split('').forEach(function (letter) {
test3[letter] = letter;
});
if (Object.keys(Object.assign({}, test3)).join('') !==
'abcdefghijklmnopqrst') {
return false;
}
return true;
} catch (e) {
// We don't expect any of the above to throw, but better to be safe.
return false;
}
} }
module.exports = shouldUseNative() ? Object.assign : function (target, source) { exports.spawnWorker = function spawnWorker(instance, workerOptions){
var from; if(window.Blob && window.URL){
var to = toObject(target); var blob = new Blob(['importScripts("' + workerOptions.workerPath + '");'])
var symbols; var worker = new Worker(window.URL.createObjectURL(blob));
}else{
for (var s = 1; s < arguments.length; s++) { var worker = new Worker(workerOptions.workerPath)
from = Object(arguments[s]);
for (var key in from) {
if (hasOwnProperty.call(from, key)) {
to[key] = from[key];
}
}
if (Object.getOwnPropertySymbols) {
symbols = Object.getOwnPropertySymbols(from);
for (var i = 0; i < symbols.length; i++) {
if (propIsEnumerable.call(from, symbols[i])) {
to[symbols[i]] = from[symbols[i]];
}
}
}
}
return to;
};
},{}],2:[function(require,module,exports){
// shim for using process in browser
var process = module.exports = {};
// cached from whatever global is present so that test runners that stub it
// don't break things. But we need to wrap it in a try catch in case it is
// wrapped in strict mode code which doesn't define any globals. It's inside a
// function because try/catches deoptimize in certain engines.
var cachedSetTimeout;
var cachedClearTimeout;
function defaultSetTimout() {
throw new Error('setTimeout has not been defined');
}
function defaultClearTimeout () {
throw new Error('clearTimeout has not been defined');
}
(function () {
try {
if (typeof setTimeout === 'function') {
cachedSetTimeout = setTimeout;
} else {
cachedSetTimeout = defaultSetTimout;
}
} catch (e) {
cachedSetTimeout = defaultSetTimout;
}
try {
if (typeof clearTimeout === 'function') {
cachedClearTimeout = clearTimeout;
} else {
cachedClearTimeout = defaultClearTimeout;
}
} catch (e) {
cachedClearTimeout = defaultClearTimeout;
}
} ())
function runTimeout(fun) {
if (cachedSetTimeout === setTimeout) {
//normal enviroments in sane situations
return setTimeout(fun, 0);
}
// if setTimeout wasn't available but was latter defined
if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
cachedSetTimeout = setTimeout;
return setTimeout(fun, 0);
}
try {
// when when somebody has screwed with setTimeout but no I.E. maddness
return cachedSetTimeout(fun, 0);
} catch(e){
try {
// When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
return cachedSetTimeout.call(null, fun, 0);
} catch(e){
// same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
return cachedSetTimeout.call(this, fun, 0);
}
}
}
function runClearTimeout(marker) {
if (cachedClearTimeout === clearTimeout) {
//normal enviroments in sane situations
return clearTimeout(marker);
}
// if clearTimeout wasn't available but was latter defined
if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
cachedClearTimeout = clearTimeout;
return clearTimeout(marker);
}
try {
// when when somebody has screwed with setTimeout but no I.E. maddness
return cachedClearTimeout(marker);
} catch (e){
try {
// When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
return cachedClearTimeout.call(null, marker);
} catch (e){
// same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
// Some versions of I.E. have different rules for clearTimeout vs setTimeout
return cachedClearTimeout.call(this, marker);
}
} }
worker.onmessage = function(e){
var packet = e.data;
} instance._recv(packet)
var queue = [];
var draining = false;
var currentQueue;
var queueIndex = -1;
function cleanUpNextTick() {
if (!draining || !currentQueue) {
return;
}
draining = false;
if (currentQueue.length) {
queue = currentQueue.concat(queue);
} else {
queueIndex = -1;
}
if (queue.length) {
drainQueue();
} }
return worker
} }
function drainQueue() { exports.terminateWorker = function(instance){
if (draining) { instance.worker.terminate()
return;
}
var timeout = runTimeout(cleanUpNextTick);
draining = true;
var len = queue.length;
while(len) {
currentQueue = queue;
queue = [];
while (++queueIndex < len) {
if (currentQueue) {
currentQueue[queueIndex].run();
}
}
queueIndex = -1;
len = queue.length;
}
currentQueue = null;
draining = false;
runClearTimeout(timeout);
} }
process.nextTick = function (fun) { exports.sendPacket = function sendPacket(instance, packet){
var args = new Array(arguments.length - 1); loadImage(packet.payload.image, function(img){
if (arguments.length > 1) { packet.payload.image = img
for (var i = 1; i < arguments.length; i++) { instance.worker.postMessage(packet)
args[i - 1] = arguments[i]; })
}
}
queue.push(new Item(fun, args));
if (queue.length === 1 && !draining) {
runTimeout(drainQueue);
}
};
// v8 likes predictible objects
function Item(fun, array) {
this.fun = fun;
this.array = array;
}
Item.prototype.run = function () {
this.fun.apply(null, this.array);
};
process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
process.version = ''; // empty string to avoid regexp issues
process.versions = {};
function noop() {}
process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;
process.binding = function (name) {
throw new Error('process.binding is not supported');
};
process.cwd = function () { return '/' };
process.chdir = function (dir) {
throw new Error('process.chdir is not supported');
};
process.umask = function() { return 0; };
},{}],3:[function(require,module,exports){
(function (process){
'use strict';
var defaultOptions = {
workerPath: 'https://cdn.rawgit.com/naptha/tesseract.js/0.2.0/dist/worker.js',
corePath: 'https://cdn.rawgit.com/naptha/tesseract.js-core/0.1.0/index.js',
langPath: 'https://cdn.rawgit.com/naptha/tessdata/gh-pages/3.02/'
};
if (process.env.NODE_ENV === "development") {
console.debug('Using Development Configuration');
defaultOptions.workerPath = location.protocol + '//' + location.host + '/dist/worker.dev.js';
} }
exports.defaultOptions = defaultOptions;
exports.spawnWorker = function spawnWorker(instance, workerOptions) { function loadImage(image, cb){
if (window.Blob && window.URL) { if(typeof image === 'string'){
var blob = new Blob(['importScripts("' + workerOptions.workerPath + '");']); if(/^\#/.test(image)){
var worker = new Worker(window.URL.createObjectURL(blob));
} else {
var worker = new Worker(workerOptions.workerPath);
}
worker.onmessage = function (e) {
var packet = e.data;
instance._recv(packet);
};
return worker;
};
exports.terminateWorker = function (instance) {
instance.worker.terminate();
};
exports.sendPacket = function sendPacket(instance, packet) {
loadImage(packet.payload.image, function (img) {
packet.payload.image = img;
instance.worker.postMessage(packet);
});
};
function loadImage(image, cb) {
if (typeof image === 'string') {
if (/^\#/.test(image)) {
// element css selector // element css selector
return loadImage(document.querySelector(image), cb); return loadImage(document.querySelector(image), cb)
} else if (/(blob|data)\:/.test(image)) { }else{
// data url // url or path
var im = new Image(); var im = new Image
im.src = image; im.src = image;
im.onload = function (e) { im.onload = e => loadImage(im, cb);
return loadImage(im, cb); return
};
return;
} else {
var xhr = new XMLHttpRequest();
xhr.open('GET', image, true);
xhr.responseType = "blob";
xhr.onload = function (e) {
return loadImage(xhr.response, cb);
};
xhr.onerror = function (e) {
if (/^https?:\/\//.test(image) && !/^https:\/\/crossorigin.me/.test(image)) {
console.debug('Attempting to load image with CORS proxy');
loadImage('https://crossorigin.me/' + image, cb);
}
};
xhr.send(null);
return;
} }
} else if (image instanceof File) { }else if(image instanceof File){
// files // files
var fr = new FileReader(); var fr = new FileReader()
fr.onload = function (e) { fr.onload = e => loadImage(fr.result, cb);
return loadImage(fr.result, cb); fr.readAsDataURL(image)
}; return
fr.readAsDataURL(image); }else if(image instanceof Blob){
return; return loadImage(URL.createObjectURL(image), cb)
} else if (image instanceof Blob) { }else if(image.getContext){
return loadImage(URL.createObjectURL(image), cb);
} else if (image.getContext) {
// canvas element // canvas element
return loadImage(image.getContext('2d'), cb); return loadImage(image.getContext('2d'), cb)
} else if (image.tagName == "IMG" || image.tagName == "VIDEO") { }else if(image.tagName == "IMG" || image.tagName == "VIDEO"){
// image element or video element // image element or video element
var c = document.createElement('canvas'); var c = document.createElement('canvas');
c.width = image.naturalWidth || image.videoWidth; c.width = image.naturalWidth || image.videoWidth;
c.height = image.naturalHeight || image.videoHeight; c.height = image.naturalHeight || image.videoHeight;
var ctx = c.getContext('2d'); var ctx = c.getContext('2d');
ctx.drawImage(image, 0, 0); ctx.drawImage(image, 0, 0);
return loadImage(ctx, cb); return loadImage(ctx, cb)
} else if (image.getImageData) { }else if(image.getImageData){
// canvas context // canvas context
var data = image.getImageData(0, 0, image.canvas.width, image.canvas.height); var data = image.getImageData(0, 0, image.canvas.width, image.canvas.height);
return loadImage(data, cb); return loadImage(data, cb)
} else {
return cb(image);
} }
throw new Error('Missing return in loadImage cascade'); cb(image)
} }
}).call(this,require('_process')) },{}],2:[function(require,module,exports){
},{"_process":2}],4:[function(require,module,exports){
"use strict";
// The result of dump.js is a big JSON tree // The result of dump.js is a big JSON tree
// which can be easily serialized (for instance // which can be easily serialized (for instance
// to be sent from a webworker to the main app // to be sent from a webworker to the main app
@ -379,254 +80,212 @@ function loadImage(image, cb) {
// a (circular) DOM-like interface for walking // a (circular) DOM-like interface for walking
// through the data. // through the data.
module.exports = function circularize(page) { module.exports = function circularize(page){
page.paragraphs = []; page.paragraphs = []
page.lines = []; page.lines = []
page.words = []; page.words = []
page.symbols = []; page.symbols = []
page.blocks.forEach(function (block) { page.blocks.forEach(function(block){
block.page = page; block.page = page;
block.lines = []; block.lines = []
block.words = []; block.words = []
block.symbols = []; block.symbols = []
block.paragraphs.forEach(function (para) { block.paragraphs.forEach(function(para){
para.block = block; para.block = block;
para.page = page; para.page = page;
para.words = []; para.words = []
para.symbols = []; para.symbols = []
para.lines.forEach(function (line) { para.lines.forEach(function(line){
line.paragraph = para; line.paragraph = para;
line.block = block; line.block = block;
line.page = page; line.page = page;
line.symbols = []; line.symbols = []
line.words.forEach(function (word) { line.words.forEach(function(word){
word.line = line; word.line = line;
word.paragraph = para; word.paragraph = para;
word.block = block; word.block = block;
word.page = page; word.page = page;
word.symbols.forEach(function (sym) { word.symbols.forEach(function(sym){
sym.word = word; sym.word = word;
sym.line = line; sym.line = line;
sym.paragraph = para; sym.paragraph = para;
sym.block = block; sym.block = block;
sym.page = page; sym.page = page;
sym.line.symbols.push(sym); sym.line.symbols.push(sym)
sym.paragraph.symbols.push(sym); sym.paragraph.symbols.push(sym)
sym.block.symbols.push(sym); sym.block.symbols.push(sym)
sym.page.symbols.push(sym); sym.page.symbols.push(sym)
}); })
word.paragraph.words.push(word); word.paragraph.words.push(word)
word.block.words.push(word); word.block.words.push(word)
word.page.words.push(word); word.page.words.push(word)
}); })
line.block.lines.push(line); line.block.lines.push(line)
line.page.lines.push(line); line.page.lines.push(line)
}); })
para.page.paragraphs.push(para); para.page.paragraphs.push(para)
}); })
}); })
return page; return page
};
},{}],5:[function(require,module,exports){
'use strict';
var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
var adapter = require('./node/index.js');
var circularize = require('./common/circularize.js');
var objectAssign = require('object-assign');
function create(workerOptions) {
workerOptions = workerOptions || {};
var worker = new TesseractWorker(objectAssign({}, adapter.defaultOptions, workerOptions));
worker.create = create;
return worker;
} }
},{}],3:[function(require,module,exports){
"use strict";
var TesseractWorker = function () { var adapter = require('./node/index.js')
function TesseractWorker(workerOptions) { var circularize = require('./common/circularize.js')
_classCallCheck(this, TesseractWorker);
function createWorker(workerOptions){
return new TesseractWorker(workerOptions)
}
class TesseractWorker {
constructor(workerOptions){
this.worker = null; this.worker = null;
this.workerOptions = workerOptions; this.workerOptions = workerOptions;
this._currentJob = null; this._currentJob = null;
this._queue = []; this._queue = []
} }
_createClass(TesseractWorker, [{ recognize(image, options){
key: 'recognize', return this._delay(job => {
value: function recognize(image, options) { if(typeof options === 'string'){
var _this = this; options = { lang: options };
}else{
return this._delay(function (job) { options = options || {}
if (typeof options === 'string') { options.lang = options.lang || 'eng';
options = { lang: options };
} else {
options = options || {};
options.lang = options.lang || 'eng';
}
job._send('recognize', { image: image, options: options, workerOptions: _this.workerOptions });
});
}
}, {
key: 'detect',
value: function detect(image, options) {
var _this2 = this;
options = options || {};
return this._delay(function (job) {
job._send('detect', { image: image, options: options, workerOptions: _this2.workerOptions });
});
}
}, {
key: 'terminate',
value: function terminate() {
if (this.worker) adapter.terminateWorker(this);
this.worker = null;
}
}, {
key: '_delay',
value: function _delay(fn) {
var _this3 = this;
if (!this.worker) this.worker = adapter.spawnWorker(this, this.workerOptions);
var job = new TesseractJob(this);
this._queue.push(function (e) {
_this3._queue.shift();
_this3._currentJob = job;
fn(job);
});
if (!this._currentJob) this._dequeue();
return job;
}
}, {
key: '_dequeue',
value: function _dequeue() {
this._currentJob = null;
if (this._queue.length > 0) {
this._queue[0]();
} }
}
}, { job._send('recognize', { image: image, options: options, workerOptions: this.workerOptions })
key: '_recv', })
value: function _recv(packet) { }
detect(image, options){
options = options || {}
return this._delay(job => {
job._send('detect', { image: image, options: options, workerOptions: this.workerOptions })
})
}
if (packet.status === 'resolve' && packet.action === 'recognize') { terminate(){
packet.data = circularize(packet.data); if(this.worker) adapter.terminateWorker(this);
} this.worker = null;
}
if (this._currentJob.id === packet.jobId) { _delay(fn){
this._currentJob._handle(packet); if(!this.worker) this.worker = adapter.spawnWorker(this, this.workerOptions);
} else {
console.warn('Job ID ' + packet.jobId + ' not known.'); var job = new TesseractJob(this);
} this._queue.push(e => {
this._queue.shift()
this._currentJob = job;
fn(job)
})
if(!this._currentJob) this._dequeue();
return job
}
_dequeue(){
this._currentJob = null;
if(this._queue.length > 0){
this._queue[0]()
} }
}]); }
return TesseractWorker; _recv(packet){
}();
var jobCounter = 0; if(packet.status === 'resolve' && packet.action === 'recognize'){
packet.data = circularize(packet.data);
}
var TesseractJob = function () { if(this._currentJob.id === packet.jobId){
function TesseractJob(instance) { this._currentJob._handle(packet)
_classCallCheck(this, TesseractJob); }else{
console.warn('Job ID ' + packet.jobId + ' not known.')
}
}
}
this.id = 'Job-' + ++jobCounter + '-' + Math.random().toString(16).slice(3, 8); var jobCounter = 0;
class TesseractJob {
constructor(instance){
this.id = 'Job-' + (++jobCounter) + '-' + Math.random().toString(16).slice(3, 8)
this._instance = instance; this._instance = instance;
this._resolve = []; this._resolve = []
this._reject = []; this._reject = []
this._progress = []; this._progress = []
} }
_createClass(TesseractJob, [{ then(resolve, reject){
key: 'then', if(this._resolve.push){
value: function then(resolve, reject) { this._resolve.push(resolve)
if (this._resolve.push) { }else{
this._resolve.push(resolve); resolve(this._resolve)
} else {
resolve(this._resolve);
}
if (reject) this.catch(reject);
return this;
} }
}, {
key: 'catch', if(reject) this.catch(reject);
value: function _catch(reject) { return this;
if (this._reject.push) { }
this._reject.push(reject); catch(reject){
} else { if(this._reject.push){
reject(this._reject); this._reject.push(reject)
} }else{
return this; reject(this._reject)
}
}, {
key: 'progress',
value: function progress(fn) {
this._progress.push(fn);
return this;
}
}, {
key: '_send',
value: function _send(action, payload) {
adapter.sendPacket(this._instance, {
jobId: this.id,
action: action,
payload: payload
});
} }
}, { return this;
key: '_handle', }
value: function _handle(packet) { progress(fn){
var data = packet.data; this._progress.push(fn)
if (packet.status === 'resolve') { return this;
if (this._resolve.length === 0) console.debug(data); }
this._resolve.forEach(function (fn) { _send(action, payload){
var ret = fn(data); adapter.sendPacket(this._instance, {
if (ret && typeof ret.then == 'function') { jobId: this.id,
console.warn('TesseractJob instances do not chain like ES6 Promises. To convert it into a real promise, use Promise.resolve.'); action: action,
} payload: payload
}); })
this._resolve = data; }
this._instance._dequeue();
} else if (packet.status === 'reject') { _handle(packet){
if (this._reject.length === 0) console.error(data); var data = packet.data;
this._reject.forEach(function (fn) { if(packet.status === 'resolve'){
return fn(data); if(this._resolve.length === 0) console.debug(data);
}); this._resolve.forEach(fn => {
this._reject = data; var ret = fn(data);
this._instance._dequeue(); if(ret && typeof ret.then == 'function'){
} else if (packet.status === 'progress') { console.warn('TesseractJob instances do not chain like ES6 Promises. To convert it into a real promise, use Promise.resolve.')
this._progress.forEach(function (fn) { }
return fn(data); })
}); this._resolve = data;
} else { this._instance._dequeue()
console.warn('Message type unknown', packet.status); }else if(packet.status === 'reject'){
} if(this._reject.length === 0) console.error(data);
this._reject.forEach(fn => fn(data))
this._reject = data;
this._instance._dequeue()
}else if(packet.status === 'progress'){
this._progress.forEach(fn => fn(data))
}else{
console.warn('Message type unknown', packet.status)
} }
}]); }
}
return TesseractJob; var DefaultTesseract = createWorker(adapter.defaultOptions)
}(); DefaultTesseract.createWorker = createWorker;
var DefaultTesseract = create(); module.exports = DefaultTesseract
module.exports = DefaultTesseract;
},{"./common/circularize.js":4,"./node/index.js":3,"object-assign":1}]},{},[5])(5) },{"./common/circularize.js":2,"./node/index.js":1}]},{},[3])(3)
}); });

566
dist/worker.js vendored
Unescape View File

@ -82,7 +82,7 @@ AbstractChainedBatch.prototype.write = function (options, callback) {
module.exports = AbstractChainedBatch module.exports = AbstractChainedBatch
}).call(this,require('_process')) }).call(this,require('_process'))
},{"_process":37}],2:[function(require,module,exports){ },{"_process":36}],2:[function(require,module,exports){
(function (process){ (function (process){
/* Copyright (c) 2013 Rod Vagg, MIT License */ /* Copyright (c) 2013 Rod Vagg, MIT License */
@ -135,7 +135,7 @@ AbstractIterator.prototype.end = function (callback) {
module.exports = AbstractIterator module.exports = AbstractIterator
}).call(this,require('_process')) }).call(this,require('_process'))
},{"_process":37}],3:[function(require,module,exports){ },{"_process":36}],3:[function(require,module,exports){
(function (Buffer,process){ (function (Buffer,process){
/* Copyright (c) 2013 Rod Vagg, MIT License */ /* Copyright (c) 2013 Rod Vagg, MIT License */
@ -395,7 +395,7 @@ module.exports.AbstractIterator = AbstractIterator
module.exports.AbstractChainedBatch = AbstractChainedBatch module.exports.AbstractChainedBatch = AbstractChainedBatch
}).call(this,{"isBuffer":require("../is-buffer/index.js")},require('_process')) }).call(this,{"isBuffer":require("../is-buffer/index.js")},require('_process'))
},{"../is-buffer/index.js":9,"./abstract-chained-batch":1,"./abstract-iterator":2,"_process":37,"xtend":4}],4:[function(require,module,exports){ },{"../is-buffer/index.js":10,"./abstract-chained-batch":1,"./abstract-iterator":2,"_process":36,"xtend":4}],4:[function(require,module,exports){
module.exports = extend module.exports = extend
function extend() { function extend() {
@ -2323,7 +2323,7 @@ function isnan (val) {
} }
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"base64-js":5,"ieee754":8,"isarray":10}],7:[function(require,module,exports){ },{"base64-js":5,"ieee754":8,"isarray":11}],7:[function(require,module,exports){
/*global window:false, self:false, define:false, module:false */ /*global window:false, self:false, define:false, module:false */
/** /**
@ -3817,6 +3817,31 @@ exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
} }
},{}],9:[function(require,module,exports){ },{}],9:[function(require,module,exports){
if (typeof Object.create === 'function') {
// implementation from standard node.js 'util' module
module.exports = function inherits(ctor, superCtor) {
ctor.super_ = superCtor
ctor.prototype = Object.create(superCtor.prototype, {
constructor: {
value: ctor,
enumerable: false,
writable: true,
configurable: true
}
});
};
} else {
// old school shim for old browsers
module.exports = function inherits(ctor, superCtor) {
ctor.super_ = superCtor
var TempCtor = function () {}
TempCtor.prototype = superCtor.prototype
ctor.prototype = new TempCtor()
ctor.prototype.constructor = ctor
}
}
},{}],10:[function(require,module,exports){
/*! /*!
* Determine if an object is a Buffer * Determine if an object is a Buffer
* *
@ -3839,14 +3864,14 @@ function isSlowBuffer (obj) {
return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0)) return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))
} }
},{}],10:[function(require,module,exports){ },{}],11:[function(require,module,exports){
var toString = {}.toString; var toString = {}.toString;
module.exports = Array.isArray || function (arr) { module.exports = Array.isArray || function (arr) {
return toString.call(arr) == '[object Array]'; return toString.call(arr) == '[object Array]';
}; };
},{}],11:[function(require,module,exports){ },{}],12:[function(require,module,exports){
var Buffer = require('buffer').Buffer; var Buffer = require('buffer').Buffer;
module.exports = isBuffer; module.exports = isBuffer;
@ -3856,7 +3881,7 @@ function isBuffer (o) {
|| /\[object (.+Array|Array.+)\]/.test(Object.prototype.toString.call(o)); || /\[object (.+Array|Array.+)\]/.test(Object.prototype.toString.call(o));
} }
},{"buffer":6}],12:[function(require,module,exports){ },{"buffer":6}],13:[function(require,module,exports){
(function (Buffer){ (function (Buffer){
module.exports = Level module.exports = Level
@ -4034,7 +4059,7 @@ var checkKeyValue = Level.prototype._checkKeyValue = function (obj, type) {
} }
}).call(this,require("buffer").Buffer) }).call(this,require("buffer").Buffer)
},{"./iterator":13,"abstract-leveldown":3,"buffer":6,"idb-wrapper":7,"isbuffer":11,"typedarray-to-buffer":38,"util":41,"xtend":15}],13:[function(require,module,exports){ },{"./iterator":14,"abstract-leveldown":3,"buffer":6,"idb-wrapper":7,"isbuffer":12,"typedarray-to-buffer":37,"util":39,"xtend":41}],14:[function(require,module,exports){
var util = require('util') var util = require('util')
var AbstractIterator = require('abstract-leveldown').AbstractIterator var AbstractIterator = require('abstract-leveldown').AbstractIterator
var ltgt = require('ltgt') var ltgt = require('ltgt')
@ -4108,43 +4133,7 @@ Iterator.prototype._next = function (callback) {
this.callback = callback this.callback = callback
} }
},{"abstract-leveldown":3,"ltgt":16,"util":41}],14:[function(require,module,exports){ },{"abstract-leveldown":3,"ltgt":15,"util":39}],15:[function(require,module,exports){
module.exports = hasKeys
function hasKeys(source) {
return source !== null &&
(typeof source === "object" ||
typeof source === "function")
}
},{}],15:[function(require,module,exports){
var Keys = require("object-keys")
var hasKeys = require("./has-keys")
module.exports = extend
function extend() {
var target = {}
for (var i = 0; i < arguments.length; i++) {
var source = arguments[i]
if (!hasKeys(source)) {
continue
}
var keys = Keys(source)
for (var j = 0; j < keys.length; j++) {
var name = keys[j]
target[name] = source[name]
}
}
return target
}
},{"./has-keys":14,"object-keys":18}],16:[function(require,module,exports){
(function (Buffer){ (function (Buffer){
exports.compare = function (a, b) { exports.compare = function (a, b) {
@ -4294,7 +4283,7 @@ exports.filter = function (range, compare) {
} }
}).call(this,{"isBuffer":require("../is-buffer/index.js")}) }).call(this,{"isBuffer":require("../is-buffer/index.js")})
},{"../is-buffer/index.js":9}],17:[function(require,module,exports){ },{"../is-buffer/index.js":10}],16:[function(require,module,exports){
var hasOwn = Object.prototype.hasOwnProperty; var hasOwn = Object.prototype.hasOwnProperty;
var toString = Object.prototype.toString; var toString = Object.prototype.toString;
@ -4336,11 +4325,11 @@ module.exports = function forEach(obj, fn) {
}; };
},{}],18:[function(require,module,exports){ },{}],17:[function(require,module,exports){
module.exports = Object.keys || require('./shim'); module.exports = Object.keys || require('./shim');
},{"./shim":20}],19:[function(require,module,exports){ },{"./shim":19}],18:[function(require,module,exports){
var toString = Object.prototype.toString; var toString = Object.prototype.toString;
module.exports = function isArguments(value) { module.exports = function isArguments(value) {
@ -4358,7 +4347,7 @@ module.exports = function isArguments(value) {
}; };
},{}],20:[function(require,module,exports){ },{}],19:[function(require,module,exports){
(function () { (function () {
"use strict"; "use strict";
@ -4422,7 +4411,7 @@ module.exports = function isArguments(value) {
}()); }());
},{"./foreach":17,"./isArguments":19}],21:[function(require,module,exports){ },{"./foreach":16,"./isArguments":18}],20:[function(require,module,exports){
// Top level file is just a mixin of submodules & constants // Top level file is just a mixin of submodules & constants
'use strict'; 'use strict';
@ -4438,7 +4427,7 @@ assign(pako, deflate, inflate, constants);
module.exports = pako; module.exports = pako;
},{"./lib/deflate":22,"./lib/inflate":23,"./lib/utils/common":24,"./lib/zlib/constants":27}],22:[function(require,module,exports){ },{"./lib/deflate":21,"./lib/inflate":22,"./lib/utils/common":23,"./lib/zlib/constants":26}],21:[function(require,module,exports){
'use strict'; 'use strict';
@ -4840,7 +4829,7 @@ exports.deflate = deflate;
exports.deflateRaw = deflateRaw; exports.deflateRaw = deflateRaw;
exports.gzip = gzip; exports.gzip = gzip;
},{"./utils/common":24,"./utils/strings":25,"./zlib/deflate":29,"./zlib/messages":34,"./zlib/zstream":36}],23:[function(require,module,exports){ },{"./utils/common":23,"./utils/strings":24,"./zlib/deflate":28,"./zlib/messages":33,"./zlib/zstream":35}],22:[function(require,module,exports){
'use strict'; 'use strict';
@ -5260,7 +5249,7 @@ exports.inflate = inflate;
exports.inflateRaw = inflateRaw; exports.inflateRaw = inflateRaw;
exports.ungzip = inflate; exports.ungzip = inflate;
},{"./utils/common":24,"./utils/strings":25,"./zlib/constants":27,"./zlib/gzheader":30,"./zlib/inflate":32,"./zlib/messages":34,"./zlib/zstream":36}],24:[function(require,module,exports){ },{"./utils/common":23,"./utils/strings":24,"./zlib/constants":26,"./zlib/gzheader":29,"./zlib/inflate":31,"./zlib/messages":33,"./zlib/zstream":35}],23:[function(require,module,exports){
'use strict'; 'use strict';
@ -5364,7 +5353,7 @@ exports.setTyped = function (on) {
exports.setTyped(TYPED_OK); exports.setTyped(TYPED_OK);
},{}],25:[function(require,module,exports){ },{}],24:[function(require,module,exports){
// String encode/decode helpers // String encode/decode helpers
'use strict'; 'use strict';
@ -5551,7 +5540,7 @@ exports.utf8border = function (buf, max) {
return (pos + _utf8len[buf[pos]] > max) ? pos : max; return (pos + _utf8len[buf[pos]] > max) ? pos : max;
}; };
},{"./common":24}],26:[function(require,module,exports){ },{"./common":23}],25:[function(require,module,exports){
'use strict'; 'use strict';
// Note: adler32 takes 12% for level 0 and 2% for level 6. // Note: adler32 takes 12% for level 0 and 2% for level 6.
@ -5585,7 +5574,7 @@ function adler32(adler, buf, len, pos) {
module.exports = adler32; module.exports = adler32;
},{}],27:[function(require,module,exports){ },{}],26:[function(require,module,exports){
'use strict'; 'use strict';
@ -5637,7 +5626,7 @@ module.exports = {
//Z_NULL: null // Use -1 or null inline, depending on var type //Z_NULL: null // Use -1 or null inline, depending on var type
}; };
},{}],28:[function(require,module,exports){ },{}],27:[function(require,module,exports){
'use strict'; 'use strict';
// Note: we can't get significant speed boost here. // Note: we can't get significant speed boost here.
@ -5680,7 +5669,7 @@ function crc32(crc, buf, len, pos) {
module.exports = crc32; module.exports = crc32;
},{}],29:[function(require,module,exports){ },{}],28:[function(require,module,exports){
'use strict'; 'use strict';
var utils = require('../utils/common'); var utils = require('../utils/common');
@ -7537,7 +7526,7 @@ exports.deflatePrime = deflatePrime;
exports.deflateTune = deflateTune; exports.deflateTune = deflateTune;
*/ */
},{"../utils/common":24,"./adler32":26,"./crc32":28,"./messages":34,"./trees":35}],30:[function(require,module,exports){ },{"../utils/common":23,"./adler32":25,"./crc32":27,"./messages":33,"./trees":34}],29:[function(require,module,exports){
'use strict'; 'use strict';
@ -7579,7 +7568,7 @@ function GZheader() {
module.exports = GZheader; module.exports = GZheader;
},{}],31:[function(require,module,exports){ },{}],30:[function(require,module,exports){
'use strict'; 'use strict';
// See state defs from inflate.js // See state defs from inflate.js
@ -7907,7 +7896,7 @@ module.exports = function inflate_fast(strm, start) {
return; return;
}; };
},{}],32:[function(require,module,exports){ },{}],31:[function(require,module,exports){
'use strict'; 'use strict';
@ -9447,7 +9436,7 @@ exports.inflateSyncPoint = inflateSyncPoint;
exports.inflateUndermine = inflateUndermine; exports.inflateUndermine = inflateUndermine;
*/ */
},{"../utils/common":24,"./adler32":26,"./crc32":28,"./inffast":31,"./inftrees":33}],33:[function(require,module,exports){ },{"../utils/common":23,"./adler32":25,"./crc32":27,"./inffast":30,"./inftrees":32}],32:[function(require,module,exports){
'use strict'; 'use strict';
@ -9776,7 +9765,7 @@ module.exports = function inflate_table(type, lens, lens_index, codes, table, ta
return 0; return 0;
}; };
},{"../utils/common":24}],34:[function(require,module,exports){ },{"../utils/common":23}],33:[function(require,module,exports){
'use strict'; 'use strict';
module.exports = { module.exports = {
@ -9791,7 +9780,7 @@ module.exports = {
'-6': 'incompatible version' /* Z_VERSION_ERROR (-6) */ '-6': 'incompatible version' /* Z_VERSION_ERROR (-6) */
}; };
},{}],35:[function(require,module,exports){ },{}],34:[function(require,module,exports){
'use strict'; 'use strict';
@ -10995,7 +10984,7 @@ exports._tr_flush_block = _tr_flush_block;
exports._tr_tally = _tr_tally; exports._tr_tally = _tr_tally;
exports._tr_align = _tr_align; exports._tr_align = _tr_align;
},{"../utils/common":24}],36:[function(require,module,exports){ },{"../utils/common":23}],35:[function(require,module,exports){
'use strict'; 'use strict';
@ -11026,7 +11015,7 @@ function ZStream() {
module.exports = ZStream; module.exports = ZStream;
},{}],37:[function(require,module,exports){ },{}],36:[function(require,module,exports){
// shim for using process in browser // shim for using process in browser
var process = module.exports = {}; var process = module.exports = {};
@ -11208,7 +11197,7 @@ process.chdir = function (dir) {
}; };
process.umask = function() { return 0; }; process.umask = function() { return 0; };
},{}],38:[function(require,module,exports){ },{}],37:[function(require,module,exports){
(function (Buffer){ (function (Buffer){
/** /**
* Convert a typed array to a Buffer without a copy * Convert a typed array to a Buffer without a copy
@ -11231,39 +11220,14 @@ module.exports = function (arr) {
} }
}).call(this,require("buffer").Buffer) }).call(this,require("buffer").Buffer)
},{"buffer":6}],39:[function(require,module,exports){ },{"buffer":6}],38:[function(require,module,exports){
if (typeof Object.create === 'function') {
// implementation from standard node.js 'util' module
module.exports = function inherits(ctor, superCtor) {
ctor.super_ = superCtor
ctor.prototype = Object.create(superCtor.prototype, {
constructor: {
value: ctor,
enumerable: false,
writable: true,
configurable: true
}
});
};
} else {
// old school shim for old browsers
module.exports = function inherits(ctor, superCtor) {
ctor.super_ = superCtor
var TempCtor = function () {}
TempCtor.prototype = superCtor.prototype
ctor.prototype = new TempCtor()
ctor.prototype.constructor = ctor
}
}
},{}],40:[function(require,module,exports){
module.exports = function isBuffer(arg) { module.exports = function isBuffer(arg) {
return arg && typeof arg === 'object' return arg && typeof arg === 'object'
&& typeof arg.copy === 'function' && typeof arg.copy === 'function'
&& typeof arg.fill === 'function' && typeof arg.fill === 'function'
&& typeof arg.readUInt8 === 'function'; && typeof arg.readUInt8 === 'function';
} }
},{}],41:[function(require,module,exports){ },{}],39:[function(require,module,exports){
(function (process,global){ (function (process,global){
// Copyright Joyent, Inc. and other Node contributors. // Copyright Joyent, Inc. and other Node contributors.
// //
@ -11853,39 +11817,70 @@ function hasOwnProperty(obj, prop) {
} }
}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) }).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"./support/isBuffer":40,"_process":37,"inherits":39}],42:[function(require,module,exports){ },{"./support/isBuffer":38,"_process":36,"inherits":9}],40:[function(require,module,exports){
'use strict'; module.exports = hasKeys
var leveljs = require('level-js'); function hasKeys(source) {
var db = typeof indexedDB === 'undefined' ? { open: function open(_, cb) { return source !== null &&
return cb(true); (typeof source === "object" ||
} } : leveljs('./tessdata2'); typeof source === "function")
}
var langdata = require('../common/langdata.json'); },{}],41:[function(require,module,exports){
var Keys = require("object-keys")
var hasKeys = require("./has-keys")
module.exports = function getLanguageData(req, res, cb) { module.exports = extend
var lang = req.options.lang;
function saveDataFile(data) { function extend() {
db.put(lang, data, function (err) { var target = {}
return console.log('cached', lang, err);
}); for (var i = 0; i < arguments.length; i++) {
cb(data); var source = arguments[i]
if (!hasKeys(source)) {
continue
}
var keys = Keys(source)
for (var j = 0; j < keys.length; j++) {
var name = keys[j]
target[name] = source[name]
}
}
return target
}
},{"./has-keys":40,"object-keys":17}],42:[function(require,module,exports){
var leveljs = require('level-js')
var db = typeof indexedDB === 'undefined' ? { open: (_, cb) => cb(true) } : leveljs('./tessdata2')
var langdata = require('../common/langdata.json')
module.exports = function getLanguageData(req, res, cb){
var lang = req.options.lang;
function saveDataFile(data){
db.put(lang, data, err => console.log('cached', lang, err))
cb(data)
} }
db.open({ compression: false }, function (err) { db.open({ compression: false }, err => {
if (err) return fetchLanguageData(req, res, cb); if (err) return fetchLanguageData(req, res, cb);
db.get(lang, function (err, data) { db.get(lang, (err, data) => {
if (err) return fetchLanguageData(req, res, saveDataFile); if (err) return fetchLanguageData(req, res, saveDataFile);
res.progress({ status: 'found in cache ' + lang + '.traineddata' }); res.progress({ status: 'found in cache ' + lang + '.traineddata' })
cb(data); cb(data)
}); })
}); })
}; }
var ungzip = require('pako').ungzip; var ungzip = require('pako').ungzip;
function fetchLanguageData(req, res, cb) { function fetchLanguageData(req, res, cb){
var lang = req.options.lang; var lang = req.options.lang;
var langfile = lang + '.traineddata.gz'; var langfile = lang + '.traineddata.gz';
var url = req.workerOptions.langPath + langfile; var url = req.workerOptions.langPath + langfile;
@ -11893,134 +11888,114 @@ function fetchLanguageData(req, res, cb) {
var xhr = new XMLHttpRequest(); var xhr = new XMLHttpRequest();
xhr.open('GET', url, true); xhr.open('GET', url, true);
xhr.responseType = 'arraybuffer'; xhr.responseType = 'arraybuffer';
xhr.onerror = function (e) { xhr.onerror = e => {
xhr.onprogress = xhr.onload = null; xhr.onprogress = xhr.onload = null
cb(xhr, null); cb(xhr, null)
}; }
xhr.onprogress = function (e) { xhr.onprogress = e =>
return res.progress({ res.progress({
status: 'downloading ' + langfile, status: 'downloading ' + langfile,
loaded: e.loaded, loaded: e.loaded,
progress: Math.min(1, e.loaded / langdata[lang]) progress: Math.min(1, e.loaded / langdata[lang])
}); });
};
xhr.onload = function (e) { xhr.onload = e => {
if (!(xhr.status == 200 || xhr.status == 0 && xhr.response)) return res.reject('Error downloading language ' + url); if (!(xhr.status == 200 || (xhr.status == 0 && xhr.response))) return res.reject('Error downloading language ' + url);
res.progress({ status: 'unzipping ' + langfile }); res.progress({ status: 'unzipping ' + langfile })
// in case the gzips are already ungzipped or extra gzipped // in case the gzips are already ungzipped or extra gzipped
var response = new Uint8Array(xhr.response); var response = new Uint8Array(xhr.response)
try { try {
while (response[0] == 0x1f && response[1] == 0x8b) { while(response[0] == 0x1f && response[1] == 0x8b) response = ungzip(response);
response = ungzip(response);
}
} catch (err) { } catch (err) {
return res.reject('Error unzipping language file ' + langfile + '\n' + err.message); return res.reject('Error unzipping language file ' + langfile + '\n' + err.message)
} }
cb(response); cb(response)
}; }
xhr.send(); xhr.send()
} }
},{"../common/langdata.json":46,"level-js":12,"pako":21}],43:[function(require,module,exports){ },{"../common/langdata.json":46,"level-js":13,"pako":20}],43:[function(require,module,exports){
(function (process,global){ (function (global){
'use strict'; "use strict";
var workerUtils = require('../common/worker.js'); var workerUtils = require('../common/worker.js')
if (process.env.NODE_ENV === "development") { global.addEventListener('message', function(e){
console.debug('Using Development Worker');
}
global.addEventListener('message', function (e) {
var packet = e.data; var packet = e.data;
workerUtils.dispatchHandlers(packet, function (obj) { workerUtils.dispatchHandlers(packet, obj => postMessage(obj))
return postMessage(obj); })
});
});
exports.getCore = function (req, res) { exports.getCore = function(req, res){
if (!global.TesseractCore) { if(!global.TesseractCore){
res.progress({ status: 'loading tesseract core', progress: 0 }); res.progress({ status: 'loading tesseract core' })
importScripts(req.workerOptions.corePath); importScripts(req.workerOptions.tesseractPath)
res.progress({ status: 'loading tesseract core', progress: 1 }); res.progress({ status: 'loaded tesseract core' })
} }
return TesseractCore; return TesseractCore
}; }
exports.getLanguageData = require('./lang.js'); exports.getLanguageData = require('./lang.js')
workerUtils.setAdapter(module.exports); workerUtils.setAdapter(module.exports);
}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {}) }).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"../common/worker.js":47,"./lang.js":42,"_process":37}],44:[function(require,module,exports){ },{"../common/worker.js":47,"./lang.js":42}],44:[function(require,module,exports){
'use strict';
// This converts an image to grayscale // This converts an image to grayscale
module.exports = function desaturate(image) { module.exports = function desaturate(image){
var width, height; var width, height;
if (image.data) { if(image.data){
var src = image.data; var src = image.data;
width = image.width, height = image.height; width = image.width,
var dst = new Uint8Array(width * height); height = image.height;
var srcLength = src.length | 0, var dst = new Uint8Array(width * height);
srcLength_16 = srcLength - 16 | 0; var srcLength = src.length | 0, srcLength_16 = (srcLength - 16) | 0;
for (var i = 0, j = 0; i <= srcLength_16; i += 16, j += 4) { for (var i = 0, j = 0; i <= srcLength_16; i += 16, j += 4) {
// convert to grayscale 4 pixels at a time; eveything with alpha gets put in front of 50% gray // convert to grayscale 4 pixels at a time; eveything with alpha gets put in front of 50% gray
dst[j] = (src[i] * 77 + src[i + 1] * 151 + src[i + 2] * 28) * src[i + 3] + (255 - src[i + 3] << 15) + 32768 >> 16; dst[j] = (((src[i] * 77 + src[i+1] * 151 + src[i+2] * 28) * src[i+3]) + ((255-src[i+3]) << 15) + 32768) >> 16
dst[j + 1] = (src[i + 4] * 77 + src[i + 5] * 151 + src[i + 6] * 28) * src[i + 7] + (255 - src[i + 7] << 15) + 32768 >> 16; dst[j+1] = (((src[i+4] * 77 + src[i+5] * 151 + src[i+6] * 28) * src[i+7]) + ((255-src[i+7]) << 15) + 32768) >> 16
dst[j + 2] = (src[i + 8] * 77 + src[i + 9] * 151 + src[i + 10] * 28) * src[i + 11] + (255 - src[i + 11] << 15) + 32768 >> 16; dst[j+2] = (((src[i+8] * 77 + src[i+9] * 151 + src[i+10] * 28) * src[i+11]) + ((255-src[i+11]) << 15) + 32768) >> 16
dst[j + 3] = (src[i + 12] * 77 + src[i + 13] * 151 + src[i + 14] * 28) * src[i + 15] + (255 - src[i + 15] << 15) + 32768 >> 16; dst[j+3] = (((src[i+12] * 77 + src[i+13] * 151 + src[i+14] * 28) * src[i+15]) + ((255-src[i+15]) << 15) + 32768) >> 16
} }
for (; i < srcLength; i += 4, ++j) { for (; i < srcLength; i += 4, ++j) //finish up
//finish up dst[j] = (((src[i] * 77 + src[i+1] * 151 + src[i+2] * 28) * src[i+3]) + ((255-src[i+3]) << 15) + 32768) >> 16
dst[j] = (src[i] * 77 + src[i + 1] * 151 + src[i + 2] * 28) * src[i + 3] + (255 - src[i + 3] << 15) + 32768 >> 16; image = dst;
}image = dst; } else { throw 'Invalid ImageData' }
} else { return image
throw 'Invalid ImageData'; }
}
return image;
};
},{}],45:[function(require,module,exports){ },{}],45:[function(require,module,exports){
'use strict'; module.exports = function DumpLiterallyEverything(Module, base){
module.exports = function DumpLiterallyEverything(Module, base) {
var ri = base.GetIterator(); var ri = base.GetIterator();
var blocks = []; var blocks = [];
var block, para, textline, word, symbol; var block, para, textline, word, symbol;
function enumToString(value, prefix) { function enumToString(value, prefix){
return Object.keys(Module).filter(function (e) { return (Object.keys(Module)
return e.substr(0, prefix.length + 1) == prefix + '_'; .filter(function(e){ return e.substr(0, prefix.length + 1) == prefix + '_' })
}).filter(function (e) { .filter(function(e){ return Module[e] === value })
return Module[e] === value; .map(function(e){ return e.slice(prefix.length + 1) })[0])
}).map(function (e) {
return e.slice(prefix.length + 1);
})[0];
} }
ri.Begin(); ri.Begin()
do { do {
if (ri.IsAtBeginningOf(Module.RIL_BLOCK)) { if(ri.IsAtBeginningOf(Module.RIL_BLOCK)){
var poly = ri.BlockPolygon(); var poly = ri.BlockPolygon();
var polygon = null; var polygon = null;
// BlockPolygon() returns null when automatic page segmentation is off // BlockPolygon() returns null when automatic page segmentation is off
if (Module.getPointer(poly) > 0) { if(Module.getPointer(poly) > 0){
var n = poly.get_n(), var n = poly.get_n(),
px = poly.get_x(), px = poly.get_x(),
py = poly.get_y(), py = poly.get_y(),
polygon = []; polygon = [];
for (var i = 0; i < n; i++) { for(var i = 0; i < n; i++){
polygon.push([px.getValue(i), py.getValue(i)]); polygon.push([px.getValue(i), py.getValue(i)]);
} }
Module._ptaDestroy(Module.getPointer(poly)); Module._ptaDestroy(Module.getPointer(poly));
} }
block = { block = {
paragraphs: [], paragraphs: [],
@ -12031,10 +12006,10 @@ module.exports = function DumpLiterallyEverything(Module, base) {
blocktype: enumToString(ri.BlockType(), 'PT'), blocktype: enumToString(ri.BlockType(), 'PT'),
polygon: polygon polygon: polygon
}; }
blocks.push(block); blocks.push(block)
} }
if (ri.IsAtBeginningOf(Module.RIL_PARA)) { if(ri.IsAtBeginningOf(Module.RIL_PARA)){
para = { para = {
lines: [], lines: [],
@ -12044,10 +12019,10 @@ module.exports = function DumpLiterallyEverything(Module, base) {
bbox: ri.getBoundingBox(Module.RIL_PARA), bbox: ri.getBoundingBox(Module.RIL_PARA),
is_ltr: !!ri.ParagraphIsLtr() is_ltr: !!ri.ParagraphIsLtr()
}; }
block.paragraphs.push(para); block.paragraphs.push(para)
} }
if (ri.IsAtBeginningOf(Module.RIL_TEXTLINE)) { if(ri.IsAtBeginningOf(Module.RIL_TEXTLINE)){
textline = { textline = {
words: [], words: [],
@ -12055,10 +12030,10 @@ module.exports = function DumpLiterallyEverything(Module, base) {
confidence: ri.Confidence(Module.RIL_TEXTLINE), confidence: ri.Confidence(Module.RIL_TEXTLINE),
baseline: ri.getBaseline(Module.RIL_TEXTLINE), baseline: ri.getBaseline(Module.RIL_TEXTLINE),
bbox: ri.getBoundingBox(Module.RIL_TEXTLINE) bbox: ri.getBoundingBox(Module.RIL_TEXTLINE)
}; }
para.lines.push(textline); para.lines.push(textline)
} }
if (ri.IsAtBeginningOf(Module.RIL_WORD)) { if(ri.IsAtBeginningOf(Module.RIL_WORD)){
var fontInfo = ri.getWordFontAttributes(), var fontInfo = ri.getWordFontAttributes(),
wordDir = ri.WordDirection(); wordDir = ri.WordDirection();
word = { word = {
@ -12083,25 +12058,25 @@ module.exports = function DumpLiterallyEverything(Module, base) {
is_smallcaps: fontInfo.is_smallcaps, is_smallcaps: fontInfo.is_smallcaps,
font_size: fontInfo.pointsize, font_size: fontInfo.pointsize,
font_id: fontInfo.font_id, font_id: fontInfo.font_id,
font_name: fontInfo.font_name font_name: fontInfo.font_name,
}; }
var wc = new Module.WordChoiceIterator(ri); var wc = new Module.WordChoiceIterator(ri);
do { do {
word.choices.push({ word.choices.push({
text: wc.GetUTF8Text(), text: wc.GetUTF8Text(),
confidence: wc.Confidence() confidence: wc.Confidence()
}); })
} while (wc.Next()); } while (wc.Next());
Module.destroy(wc); Module.destroy(wc)
textline.words.push(word); textline.words.push(word)
} }
var image = null; var image = null;
// var pix = ri.GetBinaryImage(Module.RIL_SYMBOL) // var pix = ri.GetBinaryImage(Module.RIL_SYMBOL)
// var image = pix2array(pix); // var image = pix2array(pix);
// // for some reason it seems that things stop working if you destroy pics // // for some reason it seems that things stop working if you destroy pics
// Module._pixDestroy(Module.getPointer(pix)); // Module._pixDestroy(Module.getPointer(pix));
if (ri.IsAtBeginningOf(Module.RIL_SYMBOL)) { if(ri.IsAtBeginningOf(Module.RIL_SYMBOL)){
symbol = { symbol = {
choices: [], choices: [],
image: image, image: image,
@ -12113,20 +12088,20 @@ module.exports = function DumpLiterallyEverything(Module, base) {
is_superscript: !!ri.SymbolIsSuperscript(), is_superscript: !!ri.SymbolIsSuperscript(),
is_subscript: !!ri.SymbolIsSubscript(), is_subscript: !!ri.SymbolIsSubscript(),
is_dropcap: !!ri.SymbolIsDropcap() is_dropcap: !!ri.SymbolIsDropcap(),
}; }
word.symbols.push(symbol); word.symbols.push(symbol)
var ci = new Module.ChoiceIterator(ri); var ci = new Module.ChoiceIterator(ri);
do { do {
symbol.choices.push({ symbol.choices.push({
text: ci.GetUTF8Text(), text: ci.GetUTF8Text(),
confidence: ci.Confidence() confidence: ci.Confidence()
}); })
} while (ci.Next()); } while (ci.Next());
Module.destroy(ci); Module.destroy(ci)
} }
} while (ri.Next(Module.RIL_SYMBOL)); } while (ri.Next(Module.RIL_SYMBOL));
Module.destroy(ri); Module.destroy(ri)
return { return {
text: base.GetUTF8Text(), text: base.GetUTF8Text(),
@ -12138,117 +12113,120 @@ module.exports = function DumpLiterallyEverything(Module, base) {
psm: enumToString(base.GetPageSegMode(), 'PSM'), psm: enumToString(base.GetPageSegMode(), 'PSM'),
oem: enumToString(base.oem(), 'OEM'), oem: enumToString(base.oem(), 'OEM'),
version: base.Version() version: base.Version(),
}; }
}; }
// the generated HOCR is excessively indented, so // the generated HOCR is excessively indented, so
// we get rid of that indentation // we get rid of that indentation
function deindent(html) { function deindent(html){
var lines = html.split('\n'); var lines = html.split('\n')
if (lines[0].substring(0, 2) === " ") { if(lines[0].substring(0, 2) === " "){
for (var i = 0; i < lines.length; i++) { for (var i = 0; i < lines.length; i++) {
if (lines[i].substring(0, 2) === " ") { if (lines[i].substring(0,2) === " ") {
lines[i] = lines[i].slice(2); lines[i] = lines[i].slice(2)
} }
}; };
} }
return lines.join('\n'); return lines.join('\n')
} }
},{}],46:[function(require,module,exports){ },{}],46:[function(require,module,exports){
module.exports={"afr": 1079573, "ara": 1701536, "aze": 1420865, "bel": 1276820, "ben": 6772012, "bul": 1605615, "cat": 1652368, "ces": 1035441, "chi_sim": 17710414, "chi_tra": 24717749, "chr": 320649, "dan-frak": 677656, "dan": 1972936, "deu-frak": 822644, "deu": 991656, "ell": 859719, "eng": 9453554, "enm": 619254, "epo": 1241212, "equ": 821130, "est": 1905040, "eus": 1641190, "fin": 979418, "fra": 1376221, "frk": 5912963, "frm": 5147082, "glg": 1674938, "grc": 3012615, "heb": 1051501, "hin": 6590065, "hrv": 1926995, "hun": 3074473, "ind": 1874776, "isl": 1634041, "ita": 948593, "ita_old": 3436571, "jpn": 13507168, "kan": 4390317, "kor": 5353098, "lav": 1843944, "lit": 1779240, "mal": 5966263, "meme": 88453, "mkd": 1163087, "mlt": 1463001, "msa": 1665427, "nld": 1134708, "nor": 2191610, "osd": 4274649, "pol": 7024662, "por": 909359, "ron": 915680, "rus": 5969957, "slk-frak": 289885, "slk": 2217342, "slv": 1611338, "spa": 883170, "spa_old": 5647453, "sqi": 1667041, "srp": 1770244, "swa": 757916, "swe": 2451917, "tam": 3498763, "tel": 5795246, "tgl": 1496256, "tha": 3811136, "tur": 3563264, "ukr": 937566, "vie": 2195922} module.exports={"afr": 1079573, "ara": 1701536, "aze": 1420865, "bel": 1276820, "ben": 6772012, "bul": 1605615, "cat": 1652368, "ces": 1035441, "chi_sim": 17710414, "chi_tra": 24717749, "chr": 320649, "dan-frak": 677656, "dan": 1972936, "deu-frak": 822644, "deu": 991656, "ell": 859719, "eng": 9453554, "enm": 619254, "epo": 1241212, "equ": 821130, "est": 1905040, "eus": 1641190, "fin": 979418, "fra": 1376221, "frk": 5912963, "frm": 5147082, "glg": 1674938, "grc": 3012615, "heb": 1051501, "hin": 6590065, "hrv": 1926995, "hun": 3074473, "ind": 1874776, "isl": 1634041, "ita": 948593, "ita_old": 3436571, "jpn": 13507168, "kan": 4390317, "kor": 5353098, "lav": 1843944, "lit": 1779240, "mal": 5966263, "meme": 88453, "mkd": 1163087, "mlt": 1463001, "msa": 1665427, "nld": 1134708, "nor": 2191610, "osd": 4274649, "pol": 7024662, "por": 909359, "ron": 915680, "rus": 5969957, "slk-frak": 289885, "slk": 2217342, "slv": 1611338, "spa": 883170, "spa_old": 5647453, "sqi": 1667041, "srp": 1770244, "swa": 757916, "swe": 2451917, "tam": 3498763, "tel": 5795246, "tgl": 1496256, "tha": 3811136, "tur": 3563264, "ukr": 937566, "vie": 2195922}
},{}],47:[function(require,module,exports){ },{}],47:[function(require,module,exports){
'use strict';
var latestJob; var latestJob;
var Module; var Module;
var base; var base;
var adapter = {}; var adapter = {};
function dispatchHandlers(packet, send) { function dispatchHandlers(packet, send){
function respond(status, data) { function respond(status, data){
send({ send({
jobId: packet.jobId, jobId: packet.jobId,
status: status, status: status,
action: packet.action, action: packet.action,
data: data data: data
}); })
} }
respond.resolve = respond.bind(this, 'resolve'); respond.resolve = respond.bind(this, 'resolve')
respond.reject = respond.bind(this, 'reject'); respond.reject = respond.bind(this, 'reject')
respond.progress = respond.bind(this, 'progress'); respond.progress = respond.bind(this, 'progress')
latestJob = respond; latestJob = respond;
if (packet.action === 'recognize') { if(packet.action === 'recognize'){
handleRecognize(packet.payload, respond); handleRecognize(packet.payload, respond)
} else if (packet.action === 'detect') { }else if(packet.action === 'detect'){
handleDetect(packet.payload, respond); handleDetect(packet.payload, respond)
} }
} }
exports.dispatchHandlers = dispatchHandlers; exports.dispatchHandlers = dispatchHandlers;
exports.setAdapter = function setAdapter(impl) { exports.setAdapter = function setAdapter(impl){
adapter = impl; adapter = impl;
}; }
function handleInit(req, res) {
if (!Module) { function handleInit(req, res){
if(!Module){
var Core = adapter.getCore(req, res); var Core = adapter.getCore(req, res);
res.progress({ status: 'initializing tesseract', progress: 0 }); res.progress({ status: 'initializing tesseract api' })
Module = Core({ Module = Core({
TOTAL_MEMORY: req.memory, TOTAL_MEMORY: req.memory,
TesseractProgress: function TesseractProgress(percent) { TesseractProgress(percent){
latestJob.progress({ status: 'recognizing text', progress: Math.max(0, (percent - 30) / 70) }); latestJob.progress({ status: 'recognizing text', progress: Math.max(0, (percent-30)/70) })
}, },
onRuntimeInitialized: function onRuntimeInitialized() {} onRuntimeInitialized() {}
}); })
Module.FS_createPath("/", "tessdata", true, true); Module.FS_createPath("/", "tessdata", true, true)
base = new Module.TessBaseAPI(); base = new Module.TessBaseAPI()
res.progress({ status: 'initializing tesseract', progress: 1 }); res.progress({ status: 'initialized tesseract api' })
} }
} }
var dump = require('./dump.js');
var desaturate = require('./desaturate.js');
function setImage(Module, base, image) {
var dump = require('./dump.js')
var desaturate = require('./desaturate.js')
function setImage(Module, base, image){
var imgbin = desaturate(image), var imgbin = desaturate(image),
width = image.width, width = image.width,
height = image.height; height = image.height;
var ptr = Module.allocate(imgbin, 'i8', Module.ALLOC_NORMAL); var ptr = Module.allocate(imgbin, 'i8', Module.ALLOC_NORMAL);
base.SetImage(Module.wrapPointer(ptr), width, height, 1, width); base.SetImage(Module.wrapPointer(ptr), width, height, 1, width);
base.SetRectangle(0, 0, width, height); base.SetRectangle(0, 0, width, height)
return ptr; return ptr;
} }
function loadLanguage(req, res, cb) { function loadLanguage(req, res, cb){
var lang = req.options.lang; var lang = req.options.lang;
if(!Module._loadedLanguages) Module._loadedLanguages = {};
if(lang in Module._loadedLanguages) return cb();
if (!Module._loadedLanguages) Module._loadedLanguages = {}; adapter.getLanguageData(req, res, function(data){
if (lang in Module._loadedLanguages) return cb();
adapter.getLanguageData(req, res, function (data) {
Module.FS_createDataFile('tessdata', lang + ".traineddata", data, true, false); Module.FS_createDataFile('tessdata', lang + ".traineddata", data, true, false);
res.progress({ status: 'loading ' + lang + '.traineddata', progress: 1 }); res.progress({ status: 'loaded ' + lang + '.traineddata' })
Module._loadedLanguages[lang] = true; Module._loadedLanguages[lang] = true;
cb(); cb()
}); })
} }
function handleRecognize(req, res) {
handleInit(req, res);
loadLanguage(req, res, function () {
function handleRecognize(req, res){
handleInit(req, res)
loadLanguage(req, res, function(){
var lang = req.options.lang; var lang = req.options.lang;
res.progress({ status: 'initializing api', progress: 0 }); base.Init(null, lang)
base.Init(null, lang); res.progress({ status: 'initialized with language' })
res.progress({ status: 'initializing api', progress: 0.3 });
var options = req.options; var options = req.options;
for (var option in options) { for (var option in options) {
@ -12257,41 +12235,39 @@ function handleRecognize(req, res) {
} }
} }
res.progress({ status: 'initializing api', progress: 0.6 });
var ptr = setImage(Module, base, req.image); var ptr = setImage(Module, base, req.image);
res.progress({ status: 'initializing api', progress: 1 }); base.Recognize(null)
base.Recognize(null); var result = dump(Module, base)
var result = dump(Module, base);
base.End(); base.End();
Module._free(ptr); Module._free(ptr);
res.resolve(result); res.resolve(result);
}); })
} }
function handleDetect(req, res) {
handleInit(req, res);
req.options.lang = 'osd';
loadLanguage(req, res, function () {
base.Init(null, 'osd'); function handleDetect(req, res){
base.SetPageSegMode(Module.PSM_OSD_ONLY); handleInit(req, res)
req.options.lang = 'osd';
loadLanguage(req, res, function(){
base.Init(null, 'osd')
base.SetPageSegMode(Module.PSM_OSD_ONLY)
var ptr = setImage(Module, base, req.image); var ptr = setImage(Module, base, req.image);
var results = new Module.OSResults(); var results = new Module.OSResults();
var success = base.DetectOS(results); var success = base.DetectOS(results);
if (!success) { if(!success){
base.End(); base.End();
Module._free(ptr); Module._free(ptr);
res.reject("failed to detect os"); res.reject("failed to detect os")
} else { } else {
var charset = results.get_unicharset(); var charset = results.get_unicharset()
var best = results.get_best_result(); var best = results.get_best_result()
var oid = best.get_orientation_id(), var oid = best.get_orientation_id(),
sid = best.get_script_id(); sid = best.get_script_id();
@ -12301,14 +12277,14 @@ function handleDetect(req, res) {
script_confidence: best.get_sconfidence(), script_confidence: best.get_sconfidence(),
orientation_degrees: [0, 270, 180, 90][oid], orientation_degrees: [0, 270, 180, 90][oid],
orientation_confidence: best.get_oconfidence() orientation_confidence: best.get_oconfidence()
}; }
base.End(); base.End();
Module._free(ptr); Module._free(ptr);
res.resolve(result); res.resolve(result)
} }
}); })
} }
},{"./desaturate.js":44,"./dump.js":45}]},{},[43]); },{"./desaturate.js":44,"./dump.js":45}]},{},[43]);

2
package.json
Unescape View File

@ -12,7 +12,7 @@
"./src/node/index.js": "./src/browser/index.js" "./src/node/index.js": "./src/browser/index.js"
}, },
"author": "", "author": "",
"license": "MIT", "license": "Apache",
"devDependencies": { "devDependencies": {
"babel-preset-es2015": "^6.16.0", "babel-preset-es2015": "^6.16.0",
"babelify": "^7.3.0", "babelify": "^7.3.0",

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