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tesseract.js
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fix README

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Guillermo 8 years ago
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beabea0c71
3 changed files with 148 additions and 244 deletions
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  1. 2
      README.md
  2. 131
      dist/tesseract.js
  3. 257
      dist/worker.js

2
README.md
Unescape View File

@ -3,7 +3,7 @@
[![npm version](https://badge.fury.io/js/tesseract.js.svg)](https://badge.fury.io/js/tesseract.js) [![npm version](https://badge.fury.io/js/tesseract.js.svg)](https://badge.fury.io/js/tesseract.js)
[![Beerpay](https://img.shields.io/badge/Click%20Here%20-to%20Buy%20Us%20A%20Beer-red.svg)](https://beerpay.io/naptha/tesseract.js) [![Beerpay](https://img.shields.io/badge/Click%20Here%20-to%20Buy%20Us%20A%20Beer-red.svg)](https://beerpay.io/naptha/tesseract.js)
Tesseract.js is a javascript library that gets words in [almost any language](./docs/tesseract_lang_list.md) out of images through [Optical Character Recognition(OCR)](https://en.wikipedia.org/wiki/Optical_character_recognition). ([Demo]https://en.wikipedia.org/wiki/Optical_character_recognition(http://tesseract.projectnaptha.com/)) Tesseract.js is a javascript library that gets words in [almost any language](./docs/tesseract_lang_list.md) out of images, using [OCR](https://en.wikipedia.org/wiki/Optical_character_recognition). ([Demo](http://tesseract.projectnaptha.com/))
[![fancy demo gif](./demo.gif "Demo")](http://tesseract.projectnaptha.com) [![fancy demo gif](./demo.gif "Demo")](http://tesseract.projectnaptha.com)

131
dist/tesseract.js vendored
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@ -1,89 +1,4 @@
(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';
/* eslint-disable no-unused-vars */
var hasOwnProperty = Object.prototype.hasOwnProperty;
var propIsEnumerable = Object.prototype.propertyIsEnumerable;
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) {
var from;
var to = toObject(target);
var symbols;
for (var s = 1; s < arguments.length; s++) {
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 // shim for using process in browser
var process = module.exports = {}; var process = module.exports = {};
@ -265,7 +180,7 @@ process.chdir = function (dir) {
}; };
process.umask = function() { return 0; }; process.umask = function() { return 0; };
},{}],3:[function(require,module,exports){ },{}],2:[function(require,module,exports){
module.exports={ module.exports={
"name": "tesseract.js", "name": "tesseract.js",
"version": "1.0.10", "version": "1.0.10",
@ -310,8 +225,7 @@ module.exports={
}, },
"homepage": "https://github.com/naptha/tesseract.js" "homepage": "https://github.com/naptha/tesseract.js"
} }
},{}],3:[function(require,module,exports){
},{}],4:[function(require,module,exports){
(function (process){ (function (process){
'use strict'; 'use strict';
@ -418,7 +332,7 @@ function loadImage(image, cb) {
} }
}).call(this,require('_process')) }).call(this,require('_process'))
},{"../../package.json":3,"_process":2}],5:[function(require,module,exports){ },{"../../package.json":2,"_process":1}],4:[function(require,module,exports){
"use strict"; "use strict";
// The result of dump.js is a big JSON tree // The result of dump.js is a big JSON tree
@ -485,7 +399,7 @@ module.exports = function circularize(page) {
return page; return page;
}; };
},{}],6:[function(require,module,exports){ },{}],5:[function(require,module,exports){
'use strict'; '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; }; }(); 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; }; }();
@ -596,7 +510,7 @@ module.exports = function () {
return TesseractJob; return TesseractJob;
}(); }();
},{"../node/index.js":4}],7:[function(require,module,exports){ },{"../node/index.js":3}],6:[function(require,module,exports){
'use strict'; '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; }; }(); 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; }; }();
@ -606,15 +520,12 @@ function _classCallCheck(instance, Constructor) { if (!(instance instanceof Cons
var adapter = require('./node/index.js'); var adapter = require('./node/index.js');
var circularize = require('./common/circularize.js'); var circularize = require('./common/circularize.js');
var TesseractJob = require('./common/job'); var TesseractJob = require('./common/job');
var objectAssign = require('object-assign');
var version = require('../package.json').version; var version = require('../package.json').version;
function create(workerOptions) { function create() {
workerOptions = workerOptions || {}; var workerOptions = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
var worker = new TesseractWorker(objectAssign({}, adapter.defaultOptions, workerOptions));
worker.create = create; return new TesseractWorker(Object.assign({}, adapter.defaultOptions, workerOptions, { create: create, version: version }));
worker.version = version;
return worker;
} }
var TesseractWorker = function () { var TesseractWorker = function () {
@ -629,26 +540,25 @@ var TesseractWorker = function () {
_createClass(TesseractWorker, [{ _createClass(TesseractWorker, [{
key: 'recognize', key: 'recognize',
value: function recognize(image, options) { value: function recognize(image) {
var _this = this; var _this = this;
var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
return this._delay(function (job) { return this._delay(function (job) {
if (typeof options === 'string') { if (typeof options === 'string') options = { lang: options };
options = { lang: options };
} else {
options = options || {};
options.lang = options.lang || 'eng'; options.lang = options.lang || 'eng';
}
job._send('recognize', { image: image, options: options, workerOptions: _this.workerOptions }); job._send('recognize', { image: image, options: options, workerOptions: _this.workerOptions });
}); });
} }
}, { }, {
key: 'detect', key: 'detect',
value: function detect(image, options) { value: function detect(image) {
var _this2 = this; var _this2 = this;
options = options || {}; var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
return this._delay(function (job) { return this._delay(function (job) {
job._send('detect', { image: image, options: options, workerOptions: _this2.workerOptions }); job._send('detect', { image: image, options: options, workerOptions: _this2.workerOptions });
}); });
@ -679,14 +589,13 @@ var TesseractWorker = function () {
key: '_dequeue', key: '_dequeue',
value: function _dequeue() { value: function _dequeue() {
this._currentJob = null; this._currentJob = null;
if (this._queue.length > 0) { if (this._queue.length) {
this._queue[0](); this._queue[0]();
} }
} }
}, { }, {
key: '_recv', key: '_recv',
value: function _recv(packet) { value: function _recv(packet) {
if (packet.status === 'resolve' && packet.action === 'recognize') { if (packet.status === 'resolve' && packet.action === 'recognize') {
packet.data = circularize(packet.data); packet.data = circularize(packet.data);
} }
@ -702,9 +611,7 @@ var TesseractWorker = function () {
return TesseractWorker; return TesseractWorker;
}(); }();
var DefaultTesseract = create(); module.exports = create();
module.exports = DefaultTesseract;
},{"../package.json":3,"./common/circularize.js":5,"./common/job":6,"./node/index.js":4,"object-assign":1}]},{},[7])(7) },{"../package.json":2,"./common/circularize.js":4,"./common/job":5,"./node/index.js":3}]},{},[6])(6)
}); });

257
dist/worker.js vendored
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@ -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":33}],2:[function(require,module,exports){ },{"_process":32}],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":33}],3:[function(require,module,exports){ },{"_process":32}],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":33,"xtend":4}],4:[function(require,module,exports){ },{"../is-buffer/index.js":10,"./abstract-chained-batch":1,"./abstract-iterator":2,"_process":32,"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":34,"util":37,"xtend":15}],13:[function(require,module,exports){ },{"./iterator":14,"abstract-leveldown":3,"buffer":6,"idb-wrapper":7,"isbuffer":12,"typedarray-to-buffer":33,"util":35,"xtend":37}],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":37}],14:[function(require,module,exports){ },{"abstract-leveldown":3,"ltgt":15,"util":35}],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){
'use strict'; 'use strict';
@ -4842,7 +4831,7 @@ exports.inflate = inflate;
exports.inflateRaw = inflateRaw; exports.inflateRaw = inflateRaw;
exports.ungzip = inflate; exports.ungzip = inflate;
},{"./utils/common":22,"./utils/strings":23,"./zlib/constants":25,"./zlib/gzheader":27,"./zlib/inflate":29,"./zlib/messages":31,"./zlib/zstream":32}],22:[function(require,module,exports){ },{"./utils/common":21,"./utils/strings":22,"./zlib/constants":24,"./zlib/gzheader":26,"./zlib/inflate":28,"./zlib/messages":30,"./zlib/zstream":31}],21:[function(require,module,exports){
'use strict'; 'use strict';
@ -4946,7 +4935,7 @@ exports.setTyped = function (on) {
exports.setTyped(TYPED_OK); exports.setTyped(TYPED_OK);
},{}],23:[function(require,module,exports){ },{}],22:[function(require,module,exports){
// String encode/decode helpers // String encode/decode helpers
'use strict'; 'use strict';
@ -5133,7 +5122,7 @@ exports.utf8border = function (buf, max) {
return (pos + _utf8len[buf[pos]] > max) ? pos : max; return (pos + _utf8len[buf[pos]] > max) ? pos : max;
}; };
},{"./common":22}],24:[function(require,module,exports){ },{"./common":21}],23:[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.
@ -5167,7 +5156,7 @@ function adler32(adler, buf, len, pos) {
module.exports = adler32; module.exports = adler32;
},{}],25:[function(require,module,exports){ },{}],24:[function(require,module,exports){
'use strict'; 'use strict';
@ -5219,7 +5208,7 @@ 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
}; };
},{}],26:[function(require,module,exports){ },{}],25:[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.
@ -5262,7 +5251,7 @@ function crc32(crc, buf, len, pos) {
module.exports = crc32; module.exports = crc32;
},{}],27:[function(require,module,exports){ },{}],26:[function(require,module,exports){
'use strict'; 'use strict';
@ -5304,7 +5293,7 @@ function GZheader() {
module.exports = GZheader; module.exports = GZheader;
},{}],28:[function(require,module,exports){ },{}],27:[function(require,module,exports){
'use strict'; 'use strict';
// See state defs from inflate.js // See state defs from inflate.js
@ -5632,7 +5621,7 @@ module.exports = function inflate_fast(strm, start) {
return; return;
}; };
},{}],29:[function(require,module,exports){ },{}],28:[function(require,module,exports){
'use strict'; 'use strict';
@ -7172,7 +7161,7 @@ exports.inflateSyncPoint = inflateSyncPoint;
exports.inflateUndermine = inflateUndermine; exports.inflateUndermine = inflateUndermine;
*/ */
},{"../utils/common":22,"./adler32":24,"./crc32":26,"./inffast":28,"./inftrees":30}],30:[function(require,module,exports){ },{"../utils/common":21,"./adler32":23,"./crc32":25,"./inffast":27,"./inftrees":29}],29:[function(require,module,exports){
'use strict'; 'use strict';
@ -7501,7 +7490,7 @@ module.exports = function inflate_table(type, lens, lens_index, codes, table, ta
return 0; return 0;
}; };
},{"../utils/common":22}],31:[function(require,module,exports){ },{"../utils/common":21}],30:[function(require,module,exports){
'use strict'; 'use strict';
module.exports = { module.exports = {
@ -7516,7 +7505,7 @@ module.exports = {
'-6': 'incompatible version' /* Z_VERSION_ERROR (-6) */ '-6': 'incompatible version' /* Z_VERSION_ERROR (-6) */
}; };
},{}],32:[function(require,module,exports){ },{}],31:[function(require,module,exports){
'use strict'; 'use strict';
@ -7547,7 +7536,7 @@ function ZStream() {
module.exports = ZStream; module.exports = ZStream;
},{}],33:[function(require,module,exports){ },{}],32:[function(require,module,exports){
// shim for using process in browser // shim for using process in browser
var process = module.exports = {}; var process = module.exports = {};
@ -7729,7 +7718,7 @@ process.chdir = function (dir) {
}; };
process.umask = function() { return 0; }; process.umask = function() { return 0; };
},{}],34:[function(require,module,exports){ },{}],33:[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
@ -7752,39 +7741,14 @@ module.exports = function (arr) {
} }
}).call(this,require("buffer").Buffer) }).call(this,require("buffer").Buffer)
},{"buffer":6}],35:[function(require,module,exports){ },{"buffer":6}],34:[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
}
}
},{}],36:[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';
} }
},{}],37:[function(require,module,exports){ },{}],35:[function(require,module,exports){
(function (process,global){ (function (process,global){
// Copyright Joyent, Inc. and other Node contributors. // Copyright Joyent, Inc. and other Node contributors.
// //
@ -8374,7 +8338,43 @@ 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":36,"_process":33,"inherits":35}],38:[function(require,module,exports){ },{"./support/isBuffer":34,"_process":32,"inherits":9}],36:[function(require,module,exports){
module.exports = hasKeys
function hasKeys(source) {
return source !== null &&
(typeof source === "object" ||
typeof source === "function")
}
},{}],37:[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":36,"object-keys":17}],38:[function(require,module,exports){
'use strict'; 'use strict';
var leveljs = require('level-js'); var leveljs = require('level-js');
@ -8458,7 +8458,7 @@ function fetchLanguageData(req, res, cb) {
xhr.send(); xhr.send();
} }
},{"../common/langdata.json":42,"level-js":12,"pako/lib/inflate.js":21}],39:[function(require,module,exports){ },{"../common/langdata.json":42,"level-js":13,"pako/lib/inflate.js":20}],39:[function(require,module,exports){
(function (process,global){ (function (process,global){
'use strict'; 'use strict';
@ -8489,7 +8489,7 @@ 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,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"../common/worker.js":43,"./lang.js":38,"_process":33}],40:[function(require,module,exports){ },{"../common/worker.js":43,"./lang.js":38,"_process":32}],40:[function(require,module,exports){
'use strict'; 'use strict';
// This converts an image to grayscale // This converts an image to grayscale
@ -8696,10 +8696,12 @@ module.exports={"afr": 1079573, "ara": 1701536, "aze": 1420865, "bel": 1276820,
},{}],43:[function(require,module,exports){ },{}],43:[function(require,module,exports){
'use strict'; 'use strict';
var latestJob; var latestJob,
var Module; Module,
var base; base,
var adapter = {}; adapter = {},
dump = require('./dump.js'),
desaturate = require('./desaturate.js');
function dispatchHandlers(packet, send) { function dispatchHandlers(packet, send) {
function respond(status, data) { function respond(status, data) {
@ -8735,7 +8737,7 @@ exports.setAdapter = function setAdapter(impl) {
function handleInit(req, res) { function handleInit(req, res) {
var MIN_MEMORY = 100663296; var MIN_MEMORY = 100663296;
if (['chi_sim', 'chi_tra', 'jpn'].indexOf(req.options.lang) != -1) { if (['chi_sim', 'chi_tra', 'jpn'].includes(req.options.lang)) {
MIN_MEMORY = 167772160; MIN_MEMORY = 167772160;
} }
@ -8758,9 +8760,6 @@ function handleInit(req, res) {
} }
} }
var dump = require('./dump.js');
var desaturate = require('./desaturate.js');
function setImage(Module, base, image) { function setImage(Module, base, image) {
var imgbin = desaturate(image), var imgbin = desaturate(image),
width = image.width, width = image.width,
@ -8773,16 +8772,17 @@ function setImage(Module, base, image) {
} }
function loadLanguage(req, res, cb) { function loadLanguage(req, res, cb) {
var lang = req.options.lang; var lang = req.options.lang,
langFile = lang + '.traineddata';
if (!Module._loadedLanguages) Module._loadedLanguages = {}; if (!Module._loadedLanguages) Module._loadedLanguages = {};
if (lang in Module._loadedLanguages) return cb(); if (lang in Module._loadedLanguages) return cb();
adapter.getLanguageData(req, res, function (data) { adapter.getLanguageData(req, res, function (data) {
res.progress({ status: 'loading ' + lang + '.traineddata', progress: 0 }); res.progress({ status: 'loading ' + langFile, progress: 0 });
Module.FS_createDataFile('tessdata', lang + ".traineddata", data, true, false); Module.FS_createDataFile('tessdata', langFile, data, true, false);
Module._loadedLanguages[lang] = true; Module._loadedLanguages[lang] = true;
res.progress({ status: 'loading ' + lang + '.traineddata', progress: 1 }); res.progress({ status: 'loading ' + langFile, progress: 1 });
cb(); cb();
}); });
} }
@ -8791,22 +8791,25 @@ function handleRecognize(req, res) {
handleInit(req, res); handleInit(req, res);
loadLanguage(req, res, function () { loadLanguage(req, res, function () {
var lang = req.options.lang; var options = req.options;
res.progress({ status: 'initializing api', progress: 0 }); function progressUpdate(progress) {
base.Init(null, lang); res.progress({ status: 'initializing api', progress: progress });
res.progress({ status: 'initializing api', progress: 0.3 }); }
progressUpdate(0);
base.Init(null, req.options.lang);
progressUpdate(.3);
var options = req.options;
for (var option in options) { for (var option in options) {
if (options.hasOwnProperty(option)) { if (options.hasOwnProperty(option)) {
base.SetVariable(option, options[option]); base.SetVariable(option, options[option]);
} }
} }
res.progress({ status: 'initializing api', progress: 0.6 }); progressUpdate(.6);
var ptr = setImage(Module, base, req.image); var ptr = setImage(Module, base, req.image);
res.progress({ status: 'initializing api', progress: 1 }); progressUpdate(1);
base.Recognize(null); base.Recognize(null);
@ -8823,37 +8826,31 @@ function handleDetect(req, res) {
handleInit(req, res); handleInit(req, res);
req.options.lang = 'osd'; req.options.lang = 'osd';
loadLanguage(req, res, function () { loadLanguage(req, res, function () {
base.Init(null, 'osd'); base.Init(null, 'osd');
base.SetPageSegMode(Module.PSM_OSD_ONLY); base.SetPageSegMode(Module.PSM_OSD_ONLY);
var ptr = setImage(Module, base, req.image); var ptr = setImage(Module, base, req.image),
results = new Module.OSResults();
var results = new Module.OSResults(); if (!base.DetectOS(results)) {
var success = base.DetectOS(results);
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 best = results.get_best_result(),
oid = best.get_orientation_id(),
var best = results.get_best_result();
var oid = best.get_orientation_id(),
sid = best.get_script_id(); sid = best.get_script_id();
var result = { base.End();
Module._free(ptr);
res.resolve({
tesseract_script_id: sid, tesseract_script_id: sid,
script: charset.get_script_from_script_id(sid), script: results.get_unicharset().get_script_from_script_id(sid),
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();
Module._free(ptr);
res.resolve(result);
} }
}); });
} }

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