<canvas id="c"></canvas> <script type="text/javascript" src="./lib/Tesseract.js"></script> <script type="text/javascript"> var canvas = document.getElementById('c') canvas.width = 400 canvas.height = 400 var ctx = canvas.getContext('2d'); ctx.font = '30px "Arial Black"' ctx.fillText('Hell0 World', 100, 40) // ctx.fillText("囚犯離奇掙脫囚犯離奇掙脫", 100, 40) ctx.font = '30px "Times New Roman"' ctx.fillText('from beyond', 100, 80) // ctx.fillText('2小時可換乘2次2小時可換乘2次', 100, 80) ctx.font = '30px sans-serif' ctx.fillText('the Cosmic Void', 100, 120) Tesseract.recognize(canvas,{ tessedit_char_blacklist:'e', progress: function(e){ console.log(e) } }).then( function(d){ console.log(d) } ) </script>