master
Guillermo
9 years ago
parent
27150fa4cd
commit
e9423bb032
9 changed files with 0 additions and 910 deletions
@ -1,130 +0,0 @@ |
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var Tesseract = (function(){ |
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|
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var Tesseract = {} |
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//https://cdn.rawgit.com/naptha/tesseract.js/master/worker/worker.js
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//https://rawgit.com/naptha/tesseract.js/master/worker/worker.js for testing
|
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//https://cdn.rawgit.com/naptha/tesseract.js/master/worker/worker.js
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|
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var blob = new Blob(["importScripts('__tesseractjs__');"]); // changed on build
|
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// console.log('localhost')
|
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var worker = new Worker(window.URL.createObjectURL(blob)); |
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worker.postMessage({init: {mem: 16777216*6}}) |
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var bigworker = false |
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|
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var index = 0 |
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var handlers = [] |
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|
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worker.onmessage = function(e){ |
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var handler = handlers[e.data.index] |
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if(e.data.progress){ |
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handler.progress(e.data.progress) |
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} |
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else if(e.data.err){ |
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handler.reject(e.data.err) |
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handler.callback(e.data.err) |
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} |
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else { |
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handler.resolve(e.data.result) |
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handler.callback(null,e.data.result) |
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} |
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} |
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|
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function convertToImageData(image){ |
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if(image.getContext){ |
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image = image.getContext('2d'); |
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}else if(image.tagName == "IMG" || image.tagName == "VIDEO"){ |
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var c = document.createElement('canvas'); |
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if(image.tagName == "IMG"){ |
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c.width = image.naturalWidth; |
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c.height = image.naturalHeight; |
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}else if(image.tagName == "VIDEO"){ |
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c.width = image.videoWidth; |
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c.height = image.videoHeight; |
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} |
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var ctx = c.getContext('2d'); |
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ctx.drawImage(image, 0, 0); |
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image = ctx; |
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} |
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if(image.getImageData) image = image.getImageData(0, 0, image.canvas.width, image.canvas.height); |
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return image
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} |
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|
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Tesseract.detect = function(image, progress, callback){ |
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image = convertToImageData(image) |
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|
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if(typeof progress === "undefined"){ |
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progress = callback = new Function() |
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} |
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|
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if (typeof callback === "undefined"){ |
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callback = progress |
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progress = new Function() |
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} |
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|
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var i = index++ |
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|
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handlers[i] = { |
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resolve: new Function(), |
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reject: new Function() |
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} |
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handlers[i].callback = callback |
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handlers[i].progress = progress |
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|
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return new Promise(function(resolve, reject){ |
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handlers[i].resolve = resolve |
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handlers[i].reject = reject |
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worker.postMessage({index: i, fun: 'detect', image: image}) |
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}) |
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|
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} |
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|
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Tesseract.recognize = function(image, options, callback){ |
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var lang = options.lang |
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if (typeof lang === "undefined"){ |
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lang = 'eng' |
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} |
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|
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if (!bigworker && ['chi_sim', 'chi_tra', 'jpn'].indexOf(lang) != -1){ |
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worker.postMessage({init: {mem: 16777216*10}}) |
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bigworker = true |
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console.log('started big worker') |
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} |
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|
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if (typeof options === 'string') { |
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lang = options |
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options = {} |
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} |
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|
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if (typeof options === "function") { |
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callback = options |
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options = {} |
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} |
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|
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image = convertToImageData(image) |
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|
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var i = index++ |
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|
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handlers[i] = { |
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resolve: new Function(), |
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reject: new Function() |
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} |
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handlers[i].callback = callback || new Function() |
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handlers[i].progress = (function(){ |
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if(typeof options.progress === 'function'){ |
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var p = options.progress |
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delete options.progress |
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return p |
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} |
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return function(){} |
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})() |
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|
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return new Promise(function(resolve, reject){ |
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handlers[i].resolve = resolve |
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handlers[i].reject = reject |
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worker.postMessage({index: i, fun: 'recognize', image: image, lang: lang, options: options}) |
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}) |
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|
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} |
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return Tesseract |
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})() |
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@ -1,130 +0,0 @@ |
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var Tesseract = (function(){ |
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|
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var Tesseract = {} |
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|
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//https://cdn.rawgit.com/naptha/tesseract.js/master/worker/worker.js
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//https://rawgit.com/naptha/tesseract.js/master/worker/worker.js for testing
|
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//https://cdn.rawgit.com/naptha/tesseract.js/master/worker/worker.js
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|
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var blob = new Blob(["importScripts('__tesseractjs__');"]); // changed on build
|
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// console.log('localhost')
|
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var worker = new Worker(window.URL.createObjectURL(blob)); |
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worker.postMessage({init: {mem: 16777216*6}}) |
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var bigworker = false |
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|
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var index = 0 |
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var handlers = [] |
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|
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worker.onmessage = function(e){ |
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var handler = handlers[e.data.index] |
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if(e.data.progress){ |
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handler.progress(e.data.progress) |
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} |
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else if(e.data.err){ |
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handler.reject(e.data.err) |
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handler.callback(e.data.err) |
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} |
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else { |
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handler.resolve(e.data.result) |
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handler.callback(null,e.data.result) |
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} |
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} |
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|
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function convertToImageData(image){ |
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if(image.getContext){ |
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image = image.getContext('2d'); |
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}else if(image.tagName == "IMG" || image.tagName == "VIDEO"){ |
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var c = document.createElement('canvas'); |
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if(image.tagName == "IMG"){ |
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c.width = image.naturalWidth; |
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c.height = image.naturalHeight; |
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}else if(image.tagName == "VIDEO"){ |
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c.width = image.videoWidth; |
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c.height = image.videoHeight; |
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} |
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var ctx = c.getContext('2d'); |
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ctx.drawImage(image, 0, 0); |
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image = ctx; |
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} |
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if(image.getImageData) image = image.getImageData(0, 0, image.canvas.width, image.canvas.height); |
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return image
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} |
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|
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Tesseract.detect = function(image, progress, callback){ |
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image = convertToImageData(image) |
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|
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if(typeof progress === "undefined"){ |
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progress = callback = new Function() |
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} |
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|
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if (typeof callback === "undefined"){ |
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callback = progress |
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progress = new Function() |
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} |
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|
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var i = index++ |
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|
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handlers[i] = { |
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resolve: new Function(), |
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reject: new Function() |
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} |
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handlers[i].callback = callback |
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handlers[i].progress = progress |
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|
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return new Promise(function(resolve, reject){ |
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handlers[i].resolve = resolve |
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handlers[i].reject = reject |
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worker.postMessage({index: i, fun: 'detect', image: image}) |
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}) |
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|
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} |
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|
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Tesseract.recognize = function(image, options, callback){ |
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var lang = options.lang |
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if (typeof lang === "undefined"){ |
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lang = 'eng' |
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} |
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|
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if (!bigworker && ['chi_sim', 'chi_tra', 'jpn'].indexOf(lang) != -1){ |
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worker.postMessage({init: {mem: 16777216*10}}) |
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bigworker = true |
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console.log('started big worker') |
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} |
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|
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if (typeof options === 'string') { |
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lang = options |
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options = {} |
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} |
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|
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if (typeof options === "function") { |
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callback = options |
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options = {} |
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} |
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|
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image = convertToImageData(image) |
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|
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var i = index++ |
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|
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handlers[i] = { |
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resolve: new Function(), |
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reject: new Function() |
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} |
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handlers[i].callback = callback || new Function() |
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handlers[i].progress = (function(){ |
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if(typeof options.progress === 'function'){ |
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var p = options.progress |
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delete options.progress |
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return p |
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} |
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return function(){} |
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})() |
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|
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return new Promise(function(resolve, reject){ |
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handlers[i].resolve = resolve |
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handlers[i].reject = reject |
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worker.postMessage({index: i, fun: 'recognize', image: image, lang: lang, options: options}) |
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}) |
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|
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} |
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return Tesseract |
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})() |
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@ -1,130 +0,0 @@ |
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var Tesseract = (function(){ |
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|
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var Tesseract = {} |
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|
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//https://cdn.rawgit.com/naptha/tesseract.js/master/worker/worker.js
|
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//https://rawgit.com/naptha/tesseract.js/master/worker/worker.js for testing
|
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//https://cdn.rawgit.com/naptha/tesseract.js/master/worker/worker.js
|
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|
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var blob = new Blob(["importScripts('__tesseractjs__');"]); // changed on build
|
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// console.log('localhost')
|
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var worker = new Worker(window.URL.createObjectURL(blob)); |
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worker.postMessage({init: {mem: 16777216*6}}) |
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var bigworker = false |
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|
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var index = 0 |
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var handlers = [] |
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|
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worker.onmessage = function(e){ |
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var handler = handlers[e.data.index] |
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if(e.data.progress){ |
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handler.progress(e.data.progress) |
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} |
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else if(e.data.err){ |
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handler.reject(e.data.err) |
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handler.callback(e.data.err) |
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} |
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else { |
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handler.resolve(e.data.result) |
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handler.callback(null,e.data.result) |
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} |
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} |
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|
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function convertToImageData(image){ |
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if(image.getContext){ |
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image = image.getContext('2d'); |
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}else if(image.tagName == "IMG" || image.tagName == "VIDEO"){ |
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var c = document.createElement('canvas'); |
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if(image.tagName == "IMG"){ |
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c.width = image.naturalWidth; |
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c.height = image.naturalHeight; |
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}else if(image.tagName == "VIDEO"){ |
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c.width = image.videoWidth; |
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c.height = image.videoHeight; |
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} |
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var ctx = c.getContext('2d'); |
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ctx.drawImage(image, 0, 0); |
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image = ctx; |
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} |
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if(image.getImageData) image = image.getImageData(0, 0, image.canvas.width, image.canvas.height); |
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return image
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} |
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|
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Tesseract.detect = function(image, progress, callback){ |
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image = convertToImageData(image) |
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|
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if(typeof progress === "undefined"){ |
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progress = callback = new Function() |
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} |
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|
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if (typeof callback === "undefined"){ |
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callback = progress |
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progress = new Function() |
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} |
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|
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var i = index++ |
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|
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handlers[i] = { |
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resolve: new Function(), |
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reject: new Function() |
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} |
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handlers[i].callback = callback |
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handlers[i].progress = progress |
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|
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return new Promise(function(resolve, reject){ |
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handlers[i].resolve = resolve |
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handlers[i].reject = reject |
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worker.postMessage({index: i, fun: 'detect', image: image}) |
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}) |
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|
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} |
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|
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Tesseract.recognize = function(image, options, callback){ |
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var lang = options.lang |
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if (typeof lang === "undefined"){ |
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lang = 'eng' |
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} |
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|
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if (!bigworker && ['chi_sim', 'chi_tra', 'jpn'].indexOf(lang) != -1){ |
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worker.postMessage({init: {mem: 16777216*10}}) |
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bigworker = true |
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console.log('started big worker') |
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} |
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|
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if (typeof options === 'string') { |
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lang = options |
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options = {} |
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} |
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|
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if (typeof options === "function") { |
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callback = options |
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options = {} |
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} |
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|
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image = convertToImageData(image) |
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|
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var i = index++ |
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|
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handlers[i] = { |
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resolve: new Function(), |
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reject: new Function() |
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} |
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handlers[i].callback = callback || new Function() |
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handlers[i].progress = (function(){ |
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if(typeof options.progress === 'function'){ |
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var p = options.progress |
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delete options.progress |
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return p |
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} |
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return function(){} |
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})() |
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|
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return new Promise(function(resolve, reject){ |
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handlers[i].resolve = resolve |
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handlers[i].reject = reject |
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worker.postMessage({index: i, fun: 'recognize', image: image, lang: lang, options: options}) |
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}) |
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|
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} |
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return Tesseract |
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})() |
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@ -1,130 +0,0 @@ |
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var Tesseract = (function(){ |
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|
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var Tesseract = {} |
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|
||||
//https://cdn.rawgit.com/naptha/tesseract.js/master/worker/worker.js
|
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//https://rawgit.com/naptha/tesseract.js/master/worker/worker.js for testing
|
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//https://cdn.rawgit.com/naptha/tesseract.js/master/worker/worker.js
|
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|
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var blob = new Blob(["importScripts('__tesseractjs__');"]); // changed on build
|
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// console.log('localhost')
|
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var worker = new Worker(window.URL.createObjectURL(blob)); |
||||
worker.postMessage({init: {mem: 16777216*6}}) |
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var bigworker = false |
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|
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var index = 0 |
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var handlers = [] |
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|
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worker.onmessage = function(e){ |
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var handler = handlers[e.data.index] |
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if(e.data.progress){ |
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handler.progress(e.data.progress) |
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} |
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else if(e.data.err){ |
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handler.reject(e.data.err) |
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handler.callback(e.data.err) |
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} |
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else { |
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handler.resolve(e.data.result) |
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handler.callback(null,e.data.result) |
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} |
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} |
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|
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function convertToImageData(image){ |
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if(image.getContext){ |
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image = image.getContext('2d'); |
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}else if(image.tagName == "IMG" || image.tagName == "VIDEO"){ |
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var c = document.createElement('canvas'); |
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if(image.tagName == "IMG"){ |
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c.width = image.naturalWidth; |
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c.height = image.naturalHeight; |
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}else if(image.tagName == "VIDEO"){ |
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c.width = image.videoWidth; |
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c.height = image.videoHeight; |
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} |
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var ctx = c.getContext('2d'); |
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ctx.drawImage(image, 0, 0); |
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image = ctx; |
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} |
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if(image.getImageData) image = image.getImageData(0, 0, image.canvas.width, image.canvas.height); |
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return image
|
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} |
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|
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Tesseract.detect = function(image, progress, callback){ |
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image = convertToImageData(image) |
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|
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if(typeof progress === "undefined"){ |
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progress = callback = new Function() |
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} |
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|
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if (typeof callback === "undefined"){ |
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callback = progress |
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progress = new Function() |
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} |
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|
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var i = index++ |
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|
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handlers[i] = { |
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resolve: new Function(), |
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reject: new Function() |
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} |
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handlers[i].callback = callback |
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handlers[i].progress = progress |
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|
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return new Promise(function(resolve, reject){ |
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handlers[i].resolve = resolve |
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handlers[i].reject = reject |
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worker.postMessage({index: i, fun: 'detect', image: image}) |
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}) |
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|
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} |
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|
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Tesseract.recognize = function(image, options, callback){ |
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var lang = options.lang |
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if (typeof lang === "undefined"){ |
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lang = 'eng' |
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} |
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|
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if (!bigworker && ['chi_sim', 'chi_tra', 'jpn'].indexOf(lang) != -1){ |
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worker.postMessage({init: {mem: 16777216*10}}) |
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bigworker = true |
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console.log('started big worker') |
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} |
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|
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if (typeof options === 'string') { |
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lang = options |
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options = {} |
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} |
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|
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if (typeof options === "function") { |
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callback = options |
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options = {} |
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} |
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|
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image = convertToImageData(image) |
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|
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var i = index++ |
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|
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handlers[i] = { |
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resolve: new Function(), |
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reject: new Function() |
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} |
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handlers[i].callback = callback || new Function() |
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handlers[i].progress = (function(){ |
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if(typeof options.progress === 'function'){ |
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var p = options.progress |
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delete options.progress |
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return p |
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} |
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return function(){} |
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})() |
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|
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return new Promise(function(resolve, reject){ |
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handlers[i].resolve = resolve |
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handlers[i].reject = reject |
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worker.postMessage({index: i, fun: 'recognize', image: image, lang: lang, options: options}) |
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}) |
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|
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} |
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return Tesseract |
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})() |
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@ -1,130 +0,0 @@ |
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var Tesseract = (function(){ |
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|
||||
var Tesseract = {} |
||||
|
||||
//https://cdn.rawgit.com/naptha/tesseract.js/master/worker/worker.js
|
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//https://rawgit.com/naptha/tesseract.js/master/worker/worker.js for testing
|
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//https://cdn.rawgit.com/naptha/tesseract.js/master/worker/worker.js
|
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|
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var blob = new Blob(["importScripts('__tesseractjs__');"]); // changed on build
|
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// console.log('localhost')
|
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var worker = new Worker(window.URL.createObjectURL(blob)); |
||||
worker.postMessage({init: {mem: 16777216*6}}) |
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var bigworker = false |
||||
|
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var index = 0 |
||||
var handlers = [] |
||||
|
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worker.onmessage = function(e){ |
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var handler = handlers[e.data.index] |
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if(e.data.progress){ |
||||
handler.progress(e.data.progress) |
||||
} |
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else if(e.data.err){ |
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handler.reject(e.data.err) |
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handler.callback(e.data.err) |
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} |
||||
else { |
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handler.resolve(e.data.result) |
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handler.callback(null,e.data.result) |
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} |
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} |
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|
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function convertToImageData(image){ |
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if(image.getContext){ |
||||
image = image.getContext('2d'); |
||||
}else if(image.tagName == "IMG" || image.tagName == "VIDEO"){ |
||||
var c = document.createElement('canvas'); |
||||
if(image.tagName == "IMG"){ |
||||
c.width = image.naturalWidth; |
||||
c.height = image.naturalHeight; |
||||
}else if(image.tagName == "VIDEO"){ |
||||
c.width = image.videoWidth; |
||||
c.height = image.videoHeight; |
||||
} |
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var ctx = c.getContext('2d'); |
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ctx.drawImage(image, 0, 0); |
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image = ctx; |
||||
} |
||||
if(image.getImageData) image = image.getImageData(0, 0, image.canvas.width, image.canvas.height); |
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return image
|
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} |
||||
|
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Tesseract.detect = function(image, progress, callback){ |
||||
image = convertToImageData(image) |
||||
|
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if(typeof progress === "undefined"){ |
||||
progress = callback = new Function() |
||||
} |
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|
||||
if (typeof callback === "undefined"){ |
||||
callback = progress |
||||
progress = new Function() |
||||
} |
||||
|
||||
var i = index++ |
||||
|
||||
handlers[i] = { |
||||
resolve: new Function(), |
||||
reject: new Function() |
||||
} |
||||
handlers[i].callback = callback |
||||
handlers[i].progress = progress |
||||
|
||||
return new Promise(function(resolve, reject){ |
||||
handlers[i].resolve = resolve |
||||
handlers[i].reject = reject |
||||
worker.postMessage({index: i, fun: 'detect', image: image}) |
||||
}) |
||||
|
||||
} |
||||
|
||||
Tesseract.recognize = function(image, options, callback){ |
||||
var lang = options.lang |
||||
if (typeof lang === "undefined"){ |
||||
lang = 'eng' |
||||
} |
||||
|
||||
if (!bigworker && ['chi_sim', 'chi_tra', 'jpn'].indexOf(lang) != -1){ |
||||
worker.postMessage({init: {mem: 16777216*10}}) |
||||
bigworker = true |
||||
console.log('started big worker') |
||||
} |
||||
|
||||
if (typeof options === 'string') { |
||||
lang = options |
||||
options = {} |
||||
} |
||||
|
||||
if (typeof options === "function") { |
||||
callback = options |
||||
options = {} |
||||
} |
||||
|
||||
image = convertToImageData(image) |
||||
|
||||
var i = index++ |
||||
|
||||
handlers[i] = { |
||||
resolve: new Function(), |
||||
reject: new Function() |
||||
} |
||||
handlers[i].callback = callback || new Function() |
||||
handlers[i].progress = (function(){ |
||||
if(typeof options.progress === 'function'){ |
||||
var p = options.progress |
||||
delete options.progress |
||||
return p |
||||
} |
||||
return function(){} |
||||
})() |
||||
|
||||
return new Promise(function(resolve, reject){ |
||||
handlers[i].resolve = resolve |
||||
handlers[i].reject = reject |
||||
worker.postMessage({index: i, fun: 'recognize', image: image, lang: lang, options: options}) |
||||
}) |
||||
|
||||
} |
||||
return Tesseract |
||||
})() |
||||
@ -1,130 +0,0 @@ |
||||
var Tesseract = (function(){ |
||||
|
||||
var Tesseract = {} |
||||
|
||||
//https://cdn.rawgit.com/naptha/tesseract.js/master/worker/worker.js
|
||||
//https://rawgit.com/naptha/tesseract.js/master/worker/worker.js for testing
|
||||
//https://cdn.rawgit.com/naptha/tesseract.js/master/worker/worker.js
|
||||
|
||||
var blob = new Blob(["importScripts('__tesseractjs__');"]); // changed on build
|
||||
// console.log('localhost')
|
||||
var worker = new Worker(window.URL.createObjectURL(blob)); |
||||
worker.postMessage({init: {mem: 16777216*6}}) |
||||
var bigworker = false |
||||
|
||||
var index = 0 |
||||
var handlers = [] |
||||
|
||||
worker.onmessage = function(e){ |
||||
var handler = handlers[e.data.index] |
||||
if(e.data.progress){ |
||||
handler.progress(e.data.progress) |
||||
} |
||||
else if(e.data.err){ |
||||
handler.reject(e.data.err) |
||||
handler.callback(e.data.err) |
||||
} |
||||
else { |
||||
handler.resolve(e.data.result) |
||||
handler.callback(null,e.data.result) |
||||
} |
||||
} |
||||
|
||||
function convertToImageData(image){ |
||||
if(image.getContext){ |
||||
image = image.getContext('2d'); |
||||
}else if(image.tagName == "IMG" || image.tagName == "VIDEO"){ |
||||
var c = document.createElement('canvas'); |
||||
if(image.tagName == "IMG"){ |
||||
c.width = image.naturalWidth; |
||||
c.height = image.naturalHeight; |
||||
}else if(image.tagName == "VIDEO"){ |
||||
c.width = image.videoWidth; |
||||
c.height = image.videoHeight; |
||||
} |
||||
var ctx = c.getContext('2d'); |
||||
ctx.drawImage(image, 0, 0); |
||||
image = ctx; |
||||
} |
||||
if(image.getImageData) image = image.getImageData(0, 0, image.canvas.width, image.canvas.height); |
||||
return image
|
||||
} |
||||
|
||||
Tesseract.detect = function(image, progress, callback){ |
||||
image = convertToImageData(image) |
||||
|
||||
if(typeof progress === "undefined"){ |
||||
progress = callback = new Function() |
||||
} |
||||
|
||||
if (typeof callback === "undefined"){ |
||||
callback = progress |
||||
progress = new Function() |
||||
} |
||||
|
||||
var i = index++ |
||||
|
||||
handlers[i] = { |
||||
resolve: new Function(), |
||||
reject: new Function() |
||||
} |
||||
handlers[i].callback = callback |
||||
handlers[i].progress = progress |
||||
|
||||
return new Promise(function(resolve, reject){ |
||||
handlers[i].resolve = resolve |
||||
handlers[i].reject = reject |
||||
worker.postMessage({index: i, fun: 'detect', image: image}) |
||||
}) |
||||
|
||||
} |
||||
|
||||
Tesseract.recognize = function(image, options, callback){ |
||||
var lang = options.lang |
||||
if (typeof lang === "undefined"){ |
||||
lang = 'eng' |
||||
} |
||||
|
||||
if (!bigworker && ['chi_sim', 'chi_tra', 'jpn'].indexOf(lang) != -1){ |
||||
worker.postMessage({init: {mem: 16777216*10}}) |
||||
bigworker = true |
||||
console.log('started big worker') |
||||
} |
||||
|
||||
if (typeof options === 'string') { |
||||
lang = options |
||||
options = {} |
||||
} |
||||
|
||||
if (typeof options === "function") { |
||||
callback = options |
||||
options = {} |
||||
} |
||||
|
||||
image = convertToImageData(image) |
||||
|
||||
var i = index++ |
||||
|
||||
handlers[i] = { |
||||
resolve: new Function(), |
||||
reject: new Function() |
||||
} |
||||
handlers[i].callback = callback || new Function() |
||||
handlers[i].progress = (function(){ |
||||
if(typeof options.progress === 'function'){ |
||||
var p = options.progress |
||||
delete options.progress |
||||
return p |
||||
} |
||||
return function(){} |
||||
})() |
||||
|
||||
return new Promise(function(resolve, reject){ |
||||
handlers[i].resolve = resolve |
||||
handlers[i].reject = reject |
||||
worker.postMessage({index: i, fun: 'recognize', image: image, lang: lang, options: options}) |
||||
}) |
||||
|
||||
} |
||||
return Tesseract |
||||
})() |
||||
@ -1,130 +0,0 @@ |
||||
var Tesseract = (function(){ |
||||
|
||||
var Tesseract = {} |
||||
|
||||
//https://cdn.rawgit.com/naptha/tesseract.js/master/worker/worker.js
|
||||
//https://rawgit.com/naptha/tesseract.js/master/worker/worker.js for testing
|
||||
//https://cdn.rawgit.com/naptha/tesseract.js/master/worker/worker.js
|
||||
|
||||
var blob = new Blob(["importScripts('__tesseractjs__');"]); // changed on build
|
||||
// console.log('localhost')
|
||||
var worker = new Worker(window.URL.createObjectURL(blob)); |
||||
worker.postMessage({init: {mem: 16777216*6}}) |
||||
var bigworker = false |
||||
|
||||
var index = 0 |
||||
var handlers = [] |
||||
|
||||
worker.onmessage = function(e){ |
||||
var handler = handlers[e.data.index] |
||||
if(e.data.progress){ |
||||
handler.progress(e.data.progress) |
||||
} |
||||
else if(e.data.err){ |
||||
handler.reject(e.data.err) |
||||
handler.callback(e.data.err) |
||||
} |
||||
else { |
||||
handler.resolve(e.data.result) |
||||
handler.callback(null,e.data.result) |
||||
} |
||||
} |
||||
|
||||
function convertToImageData(image){ |
||||
if(image.getContext){ |
||||
image = image.getContext('2d'); |
||||
}else if(image.tagName == "IMG" || image.tagName == "VIDEO"){ |
||||
var c = document.createElement('canvas'); |
||||
if(image.tagName == "IMG"){ |
||||
c.width = image.naturalWidth; |
||||
c.height = image.naturalHeight; |
||||
}else if(image.tagName == "VIDEO"){ |
||||
c.width = image.videoWidth; |
||||
c.height = image.videoHeight; |
||||
} |
||||
var ctx = c.getContext('2d'); |
||||
ctx.drawImage(image, 0, 0); |
||||
image = ctx; |
||||
} |
||||
if(image.getImageData) image = image.getImageData(0, 0, image.canvas.width, image.canvas.height); |
||||
return image
|
||||
} |
||||
|
||||
Tesseract.detect = function(image, progress, callback){ |
||||
image = convertToImageData(image) |
||||
|
||||
if(typeof progress === "undefined"){ |
||||
progress = callback = new Function() |
||||
} |
||||
|
||||
if (typeof callback === "undefined"){ |
||||
callback = progress |
||||
progress = new Function() |
||||
} |
||||
|
||||
var i = index++ |
||||
|
||||
handlers[i] = { |
||||
resolve: new Function(), |
||||
reject: new Function() |
||||
} |
||||
handlers[i].callback = callback |
||||
handlers[i].progress = progress |
||||
|
||||
return new Promise(function(resolve, reject){ |
||||
handlers[i].resolve = resolve |
||||
handlers[i].reject = reject |
||||
worker.postMessage({index: i, fun: 'detect', image: image}) |
||||
}) |
||||
|
||||
} |
||||
|
||||
Tesseract.recognize = function(image, options, callback){ |
||||
var lang = options.lang |
||||
if (typeof lang === "undefined"){ |
||||
lang = 'eng' |
||||
} |
||||
|
||||
if (!bigworker && ['chi_sim', 'chi_tra', 'jpn'].indexOf(lang) != -1){ |
||||
worker.postMessage({init: {mem: 16777216*10}}) |
||||
bigworker = true |
||||
console.log('started big worker') |
||||
} |
||||
|
||||
if (typeof options === 'string') { |
||||
lang = options |
||||
options = {} |
||||
} |
||||
|
||||
if (typeof options === "function") { |
||||
callback = options |
||||
options = {} |
||||
} |
||||
|
||||
image = convertToImageData(image) |
||||
|
||||
var i = index++ |
||||
|
||||
handlers[i] = { |
||||
resolve: new Function(), |
||||
reject: new Function() |
||||
} |
||||
handlers[i].callback = callback || new Function() |
||||
handlers[i].progress = (function(){ |
||||
if(typeof options.progress === 'function'){ |
||||
var p = options.progress |
||||
delete options.progress |
||||
return p |
||||
} |
||||
return function(){} |
||||
})() |
||||
|
||||
return new Promise(function(resolve, reject){ |
||||
handlers[i].resolve = resolve |
||||
handlers[i].reject = reject |
||||
worker.postMessage({index: i, fun: 'recognize', image: image, lang: lang, options: options}) |
||||
}) |
||||
|
||||
} |
||||
return Tesseract |
||||
})() |
||||
Loading…
Reference in new issue