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autoCaptchaImages.js
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autoCaptchaImages.js
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// ==UserScript==
// @name Hcaptcha Solver with Browser Trainer(Automatically solves Hcaptcha in browser)
// @namespace Hcaptcha Solver
// @version 10.0
// @description Hcaptcha Solver in Browser | Automatically solves Hcaptcha in browser
// @author Md ubeadulla
// @match https://*.hcaptcha.com/*hcaptcha-challenge*
// @match https://*.hcaptcha.com/*checkbox*
// @grant GM_xmlhttpRequest
// @grant GM_setValue
// @grant GM_getValue
// @run-at document-start
// @connect www.imageidentify.com
// @connect https://cdnjs.cloudflare.com
// @connect https://cdn.jsdelivr.net
// @connect https://unpkg.com
// @connect https://*.hcaptcha.com/*
// @require https://unpkg.com/[email protected]/browser/lib/jimp.min.js
// @require https://cdnjs.cloudflare.com/ajax/libs/tesseract.js/2.0.0-alpha.2/tesseract.min.js
// @require https://cdn.jsdelivr.net/npm/@tensorflow/[email protected]/dist/tf.min.js
// @require https://cdn.jsdelivr.net/npm/@tensorflow-models/[email protected]/dist/coco-ssd.min.js
// @require https://cdn.jsdelivr.net/npm/@tensorflow-models/[email protected]/dist/mobilenet.min.js
/*
██╗░░██╗░█████╗░░█████╗░██████╗░████████╗░█████╗░██╗░░██╗░█████╗░ ░██████╗░█████╗░██╗░░░░░██╗░░░██╗███████╗██████╗░
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*/
/** Note: This script is solely intended for the use of educational purposes only and not to abuse any website.
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***************************************************************************************************
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*/
// ==/UserScript==
(async function() {
//TODO: Enable debug mode to print console logs
//TODO: Refactor Code for different models
'use strict';
var selectedImageCount = 0;
var tensorFlowModel = undefined;
var tensorFlowMobileNetModel = undefined;
var worker = undefined;
var identifiedObjectsList = [];
var exampleImageList = [];
var identifyObjectsFromImagesCompleted = false;
var currentExampleUrls = [];
//Default Language for hcaptcha
const LANG_ENGLISH = "English"
const DEFAULT_LANGUAGE = LANG_ENGLISH;
const ENABLE_DEFAULT_LANGUAGE = true;
//Guess/Match New Images
const MATCH_IMAGES_USING_TRAINER = false;
const GUESS_NEW_IMAGE_TYPE = false;
//Node Selectors
const CHECK_BOX = "#checkbox";
const SUBMIT_BUTTON = ".button-submit";
const TASK_IMAGE_BORDER = ".task-image .border";
const IMAGE = ".task-image .image";
const TASK_IMAGE = ".task-image";
const PROMPT_TEXT = ".prompt-text";
const NO_SELECTION = ".no-selection";
const CHALLENGE_INPUT_FIELD = ".challenge-input .input-field";
const CHALLENGE_INPUT = ".challenge-input";
const CHALLENGE_IMAGE = ".challenge-example .image .image";
const IMAGE_FOR_OCR = ".challenge-image .zoom-image";
const LANGUAGE_SELECTOR = "#language-list .scroll-container .option span";
//Attributes
const ARIA_CHECKED = "aria-checked";
const ARIA_HIDDEN = "aria-hidden";
//Values that can be changed for other languages
const AIRPLANE = "airplane";
const BICYCLE = "bicycle";
const BOAT = "boat";
const BUS = "bus";
const CAR = "car";
const MOTORBUS = "motorbus";
const MOTORCYCLE = "motorcycle";
const SURFBOARD = "surfboard";
const TRAIN = "train";
const TRUCK = "truck";
const TRIMARAN = "trimaran";
const SEAPLANE = "seaplane";
const SPEEDBOAT = "speedboat";
//Living Room Objects
const BED = "bed";
const BOOK = "book";
const CHAIR = "chair";
const CLOCK = "clock";
const COUCH = "couch";
const DINING_TABLE = "dining table";
const POTTED_PLANT = "potted plant";
const TV = "tv";
//Animals
const ZEBRA = "zebra";
const CAT = "cat";
const DOG = "dog";
// Vertical River
const VALLEY = "valley";
const VERTICAL_RIVER = "vertical river";
const LIVING_ROOM_TYPES = [BED, BOOK, CHAIR, CLOCK, COUCH, DINING_TABLE, POTTED_PLANT, TV];
const TRANSPORT_TYPES = [AIRPLANE, BICYCLE, BOAT, BUS, CAR, MOTORBUS, MOTORCYCLE, SEAPLANE, SPEEDBOAT, SURFBOARD, TRAIN, TRIMARAN, TRUCK];
const ANIMAL_TYPES = [ZEBRA, CAT, DOG];
const SENTENCE_TEXT_A = "Please click each image containing a ";
const SENTENCE_TEXT_AN = "Please click each image containing an ";
const LANGUAGE_FOR_OCR = "eng";
// Option to override the default image matching
// Enabling this by default
const ENABLE_TENSORFLOW = true;
// Max Skips that can be done while solving the captcha
// This is likely not to happen, if it occurs retry for new images
const MAX_SKIPS = 10;
var skipCount = 0;
var USE_MOBILE_NET = false;
var USE_COLOUR_PATTERN = false;
var NEW_WORD_IDENTIFIED = false;
//Probablility for objects
var probabilityForObject = new Map();
probabilityForObject.set("speedboat", 0.14);
probabilityForObject.set("fireboat", 0.4);
probabilityForObject.set("boathouse", 0.4);
probabilityForObject.set("submarine", 0.5);
probabilityForObject.set("printer", 0.05);
probabilityForObject.set("stretcher", 0.05);
probabilityForObject.set("rotisserie", 0.02);
probabilityForObject.set("spatula", 0.05);
String.prototype.includesOneOf = function(arrayOfStrings) {
//If this is not an Array, compare it as a String
if (!Array.isArray(arrayOfStrings)) {
return this.toLowerCase().includes(arrayOfStrings.toLowerCase());
}
for (var i = 0; i < arrayOfStrings.length; i++) {
if ((arrayOfStrings[i].substr(0, 1) == "=" && this.toLowerCase() == arrayOfStrings[i].substr(1).toLowerCase()) ||
(this.toLowerCase().includes(arrayOfStrings[i].toLowerCase()))) {
return true;
}
}
return false;
}
String.prototype.equalsOneOf = function(arrayOfStrings) {
//If this is not an Array, compare it as a String
if (!Array.isArray(arrayOfStrings)) {
return this.toLowerCase() == arrayOfStrings.toLowerCase();
}
for (var i = 0; i < arrayOfStrings.length; i++) {
if ((arrayOfStrings[i].substr(0, 1) == "=" && this.toLowerCase() == arrayOfStrings[i].substr(1).toLowerCase()) ||
(this.toLowerCase() == arrayOfStrings[i].toLowerCase())) {
return true;
}
}
return false;
}
// This script uses imageidentify API (wolfram) . You may also use TensorFlow.js, Yolo latest version to recognize common objects.
//(When the cloud service is available for yolo, we can switch the API endpoint). Accuracy varies between Wolfram, Tensorflow and Yolo.
// Use this as a reference to solve recaptcha/other captchas using scripts in browser. This is intended for learning purposes.
// Using TensorFlow as fallback, but this requires good CPU in order to solve quickly.
// CPU utilization and memory utlization may go high when using TensorFlow.js
function matchImages(imageUrl, word, i) {
GM_xmlhttpRequest({
method: "POST",
url: "https://www.imageidentify.com/objects/user-26a7681f-4b48-4f71-8f9f-93030898d70d/prd/urlapi/",
headers: {
"Content-Type": "application/x-www-form-urlencoded"
},
data: "image=" + encodeURIComponent(imageUrl),
timeout: 8000,
onload: function(response) {
clickImages(response, imageUrl, word, i)
},
onerror: function(e) {
//Using Fallback TensorFlow
if (e && e.status && e.status != 0) {
console.log(e);
console.log("Using Fallback");
}
matchImagesUsingTensorFlow(imageUrl, word, i);
},
ontimeout: function() {
//console.log("Timed out. Using Fallback");
matchImagesUsingTensorFlow(imageUrl, word, i);
},
});
}
function matchImagesUsingTensorFlow(imageUrl, word, i) {
try {
let img = new Image();
img.crossOrigin = "Anonymous";
img.src = imageUrl;
img.onload = () => {
initializeTensorFlowModel().then(model => model.detect(img))
.then(function(predictions) {
var predictionslen = predictions.length;
for (var j = 0; j < predictionslen; j++) {
if (qSelectorAll(IMAGE)[i] && (qSelectorAll(IMAGE)[i].style.background).includes(imageUrl) &&
qSelectorAll(TASK_IMAGE_BORDER)[i].style.opacity == 0 &&
predictions[j].class.includesOneOf(word)) {
qSelectorAll(TASK_IMAGE)[i].click();
break;
}
}
img.removeAttribute("src");
selectedImageCount = selectedImageCount + 1;
});
}
} catch (err) {
console.log(err.message);
}
}
function matchImagesUsingTensorFlowMobileNet(imageUrl, word, i) {
try {
let img = new Image();
img.crossOrigin = "Anonymous";
img.src = imageUrl;
img.onload = () => {
initializeTensorFlowMobilenetModel().then(model => model.classify(img))
.then(function(predictions) {
var predictionslen = predictions.length;
for (var j = 0; j < predictionslen; j++) {
var probability = 0.077;
if (probabilityForObject.get(predictions[j].className)) {
probability = probabilityForObject.get(predictions[j].className);
}
if (qSelectorAll(IMAGE)[i] && (qSelectorAll(IMAGE)[i].style.background).includes(imageUrl) &&
qSelectorAll(TASK_IMAGE_BORDER)[i].style.opacity == 0 &&
predictions[j].className.includesOneOf(word) && predictions[j].probability > probability) {
qSelectorAll(TASK_IMAGE)[i].click();
break;
}
}
img.removeAttribute("src");
selectedImageCount = selectedImageCount + 1;
});
}
} catch (err) {
console.log(err.message);
}
}
// TODO: Generalize this logic
// Identifying this based on the observation of the images seen
// The actual way would be to scan the entire image to find the lake.
// Mobilenet model in browser js identifies the lake but does not provide coordinates
// to identify if it is horizontal or vertical
function matchImageForVerticalRiver(imageUrl, word, i) {
Jimp.read(imageUrl).then(function (data) {
data.getBase64(Jimp.AUTO, async function (err, src) {
var img = document.createElement("img");
img.setAttribute("src", src);
await img.decode();
var imageHeight = img.height;
var imageWidth = img.width;
var cropHeight = imageHeight - 0.03*imageHeight;
let url = src.replace(/^data:image\/\w+;base64,/, "");
let buffer = new Buffer(url, 'base64');
Jimp.read(buffer).then(function (data) {
data.crop(0, cropHeight, imageWidth, imageHeight)
.getBase64(Jimp.AUTO, async function (err, src) {
var img = document.createElement("img");
img.src = src;
await img.decode();
var c = document.createElement("canvas")
c.width = img.width;
c.height = img.height;
var ctx = c.getContext("2d");
ctx.drawImage(img, 0, 0);
var imageData = ctx.getImageData(0, 0, c.width, c.height);
var data = imageData.data;
var count = 0;
//Multiple combinations and distances are required for accuracy
for (let i = 0; i < data.length; i+= 4) {
if( (data[i] < 140 && data[i+1] < 110 && data[i+2] > 80 && data[i+3] == 255) ||
(data[i] < 200 && data[i+1] < 200 && data[i+2] > 140 && data[i+3] == 255)){
count++;
}
}
if(count > 0.001*(data.length/4) && count < data.length/8) {
if (qSelectorAll(IMAGE)[i] && (qSelectorAll(IMAGE)[i].style.background).includes(imageUrl) &&
qSelectorAll(TASK_IMAGE_BORDER)[i].style.opacity == 0) {
qSelectorAll(TASK_IMAGE)[i].click();
}
}
img.removeAttribute("src");
selectedImageCount = selectedImageCount + 1;
});
});
img.removeAttribute("src");
});
});
}
// This approach is naive approch to store the images and retrieve
// The accuracy is 100% as long as you store the selected images
// Browser memory is used to store the images and gets cleared if you delete the browser cache and cookies
// You may use this to store images in remote place and retrive for quick access
// This approach is only used during urgent scenarios before training the images
// Image differnce can also be done with the stored images to identify new image based on the existing if they are nearly equal
function matchImagesUsingTrainer(imageUrl, word, i) {
Jimp.read(imageUrl).then(function (data) {
data.getBase64(Jimp.AUTO, async function (err, src) {
var trainerInterval = setInterval(function(){
if (!qSelectorAll(IMAGE)[i] || !(qSelectorAll(IMAGE)[i].style.background).includes(imageUrl) ){
clearInterval(trainerInterval);
return;
}
if (qSelectorAll(IMAGE)[i] && (qSelectorAll(IMAGE)[i].style.background).includes(imageUrl) &&
qSelectorAll(TASK_IMAGE_BORDER)[i].style.opacity == 0 && GM_getValue(src) && GM_getValue(src) == word) {
console.log("Retrieved image from trainer");
selectedImageCount = selectedImageCount + 1;
qSelectorAll(TASK_IMAGE)[i].click();
clearInterval(trainerInterval);
return;
}
// Overriding Previously Stored values
if (qSelectorAll(IMAGE)[i] && (qSelectorAll(IMAGE)[i].style.background).includes(imageUrl) &&
qSelectorAll(TASK_IMAGE_BORDER)[i].style.opacity == 1 && GM_getValue(src) && GM_getValue(src) != word) {
console.log("Overriding image in the trainer");
selectedImageCount = selectedImageCount + 1;
GM_setValue(src,word);
console.log("Image Stored into database");
clearInterval(trainerInterval);
return;
}
if (qSelectorAll(IMAGE)[i] && (qSelectorAll(IMAGE)[i].style.background).includes(imageUrl) &&
qSelectorAll(TASK_IMAGE_BORDER)[i].style.opacity == 1 && !GM_getValue(src)) {
selectedImageCount = selectedImageCount + 1;
GM_setValue(src,word);
console.log("Image Stored into database");
clearInterval(trainerInterval);
return;
}
},5000);
});
});
}
//Function to sleep or delay
async function delay(ms) {
return new Promise(resolve => setTimeout(resolve, ms))
}
//Different Models can be set later based on usecase
//Ref Models: https://github.com/tensorflow/tfjs-models
async function initializeTensorFlowModel() {
if (!tensorFlowModel) {
tensorFlowModel = await cocoSsd.load();
}
return tensorFlowModel;
}
//MobileNet ssd model
async function initializeTensorFlowMobilenetModel() {
if (!tensorFlowMobileNetModel) {
tensorFlowMobileNetModel = await mobilenet.load();
}
return tensorFlowMobileNetModel;
}
//Initialize TesseractWorker
function initializeTesseractWorker() {
if (!worker) {
worker = new Tesseract.TesseractWorker();
}
}
function clickImages(response, imageUrl, word, i) {
try {
if (response && response.responseText && (qSelectorAll(IMAGE)[i].style.background).includes(imageUrl) &&
qSelectorAll(TASK_IMAGE_BORDER)[i].style.opacity == 0) {
var responseJson = JSON.parse(response.responseText);
if (responseJson.identify && responseJson.identify.title && responseJson.identify.title.includesOneOf(word)) {
qSelectorAll(TASK_IMAGE)[i].click();
} else if (responseJson.identify && responseJson.identify.entity && responseJson.identify.entity.includesOneOf(word)) {
qSelectorAll(TASK_IMAGE)[i].click();
} else if (responseJson.identify && responseJson.identify.alternatives) {
var alternatives = JSON.stringify(responseJson.identify.alternatives);
var alternativesJson = JSON.parse(alternatives);
for (var key in alternativesJson) {
if (alternativesJson.hasOwnProperty(key)) {
if ((alternativesJson[key].includesOneOf(word) || key.includesOneOf(word))) {
qSelectorAll(TASK_IMAGE)[i].click();
break;
}
}
}
} else {
//No Match found
}
selectedImageCount = selectedImageCount + 1;
} else {
//console.log("Using Fallback TensorFlow");
matchImagesUsingTensorFlow(imageUrl, word, i);
}
} catch (err) {
//Using Fallback TensorFlow
//console.log(err.message);
//console.log("Using Fallback TensorFlow");
matchImagesUsingTensorFlow(imageUrl, word, i);
}
}
function qSelectorAll(selector) {
return document.querySelectorAll(selector);
}
function qSelector(selector) {
return document.querySelector(selector);
}
async function getSynonyms(word) {
USE_MOBILE_NET = false;
USE_COLOUR_PATTERN = false;
NEW_WORD_IDENTIFIED = false;
//TODO: Format this to JSON string
if (word == MOTORBUS || word == BUS) {
word = ['bus', 'motorbus'];
USE_MOBILE_NET = true;
} else if (word == CAR) {
word = ['=car', 'coupe', 'jeep', 'limo', 'sport utility vehicle', 'station wagon', 'hatchback', 'bumper car', 'modelT', 'electric battery', 'cruiser'];
USE_MOBILE_NET = true;
} else if (word == AIRPLANE) {
word = ['airplane', 'plane', 'aircraft', 'aeroplane', 'hangar', 'Airdock', 'JumboJet', 'jetliner', 'stealth fighter', 'field artillery']
USE_MOBILE_NET = true;
} else if (word == TRAIN) {
word = ['train', 'rail', 'cable car', 'locomotive', 'subway station']
USE_MOBILE_NET = true;
} else if (word == BOAT || word == SURFBOARD) {
word = ['=boat', '=barge', 'houseboat', 'boathouse', 'speedboat', '=submarine', 'bobsled', 'catamaran', 'schooner', 'ocean liner', 'lifeboat', 'fireboat', 'yawl', 'pontoon', 'small boat', 'SnowBlower', 'Sea-coast', 'paddlewheel', 'paddle wheel', 'PaddleSteamer', 'Freighter', 'Sternwheeler', 'kayak', 'canoe', 'deck', 'DockingFacility', 'surfboard', '=ship', '=cruise', 'watercraft', 'sail', 'canvas', '=raft']
USE_MOBILE_NET = true;
} else if (word == BICYCLE) {
word = ['bicycle-built-for-two', 'tandem bicycle', 'bicycle', 'tricycle', 'mountain bike', 'AcceleratorPedal', 'macaw', 'knot']
USE_MOBILE_NET = true;
} else if (word == MOTORCYCLE) {
word = ['moped', 'motor scooter', 'scooter', 'motorcycle', 'windshield', 'dashboard']
USE_MOBILE_NET = true;
} else if (word == TRUCK) {
word = ['truck', 'cargocontainer', 'bazooka']
USE_MOBILE_NET = true;
} else if (word == TRIMARAN || word == SPEEDBOAT || word == SEAPLANE) {
word = ['spatula', 'can opener', 'tin opener', 'monitor', 'screen', 'stretcher', 'printer', 'nail', 'mousetrap', 'TRIMARAN', 'space shuttle', 'ski', 'rotisserie', 'geyser', 'plate rack']
USE_MOBILE_NET = true;
} else if (word.includesOneOf(LIVING_ROOM_TYPES)) {
word = ['bed', 'couch', 'chair', 'potted plant', 'dining table', 'clock', 'tv', 'book']
} else if (word == ZEBRA) {
word = ['zebra']
} else if (word == CAT) {
word = ['cat']
USE_MOBILE_NET = true;
} else if (word == DOG) {
word = ['dog']
} else if (word == VALLEY || word == VERTICAL_RIVER){
word = ['alp','volcano']
USE_COLOUR_PATTERN = true;
} else {
NEW_WORD_IDENTIFIED = true;
console.log("Word does not match. New type identified::" + word);
}
return word
}
function isHidden(el) {
return (el.offsetParent === null)
}
if (window.location.href.includes("checkbox")) {
var checkboxInterval = setInterval(function() {
if (!qSelector(CHECK_BOX)) {
//Wait until the checkbox element is visible
} else if (qSelector(CHECK_BOX).getAttribute(ARIA_CHECKED) == "true") {
clearInterval(checkboxInterval);
} else if (!isHidden(qSelector(CHECK_BOX)) && qSelector(CHECK_BOX).getAttribute(ARIA_CHECKED) == "false") {
qSelector(CHECK_BOX).click();
} else {
return;
}
}, 5000);
} else {
try {
await initializeTesseractWorker();
await initializeTensorFlowModel();
await initializeTensorFlowMobilenetModel();
selectImages();
} catch (err) {
console.log(err);
console.log("Tesseract could not be initialized");
}
}
function selectImagesAfterDelay(delay) {
setTimeout(function() {
selectImages();
}, delay * 1000);
}
function triggerEvent(el, type) {
var e = document.createEvent('HTMLEvents');
e.initEvent(type, false, true);
el.dispatchEvent(e);
}
function triggerMouseEvent(el, type) {
var e = document.createEvent('MouseEvent');
e.initEvent(type, false, true);
el.dispatchEvent(e);
}
// Small hack to select the nodes
function unsure(targetNodeText) {
var targetNode = Array.from(qSelectorAll('div'))
.find(el => el.textContent === targetNodeText);
//Works for now
//TODO: Select clothing
//TODO: Draw boxes around images
if (targetNode) {
triggerMouseEvent(targetNode, 'mousedown');
triggerMouseEvent(targetNode, 'mouseup');
if (qSelector(SUBMIT_BUTTON)) {
qSelector(SUBMIT_BUTTON).click();
}
}
return selectImagesAfterDelay(1);
}
function getUrlFromString(urlString) {
var imageUrl = urlString.substring(
urlString.indexOf('"') + 1,
urlString.lastIndexOf('"')
);
if (!imageUrl || !imageUrl.includes("https")) {
return 0;
}
return imageUrl;
}
function getImageList() {
var imageList = [];
if (qSelectorAll(IMAGE).length > 0) {
for (var i = 0; i < 9; i++) {
var urlString = qSelectorAll(IMAGE)[i].style.background;
var imageUrl = getUrlFromString(urlString);
if (imageUrl == 0) {
//console.log("Image url is empty");
return imageList;
}
imageList[i] = imageUrl;
}
}
return imageList;
}
function waitUntilImageSelection() {
var imageIntervalCount = 0;
var imageInterval = setInterval(function() {
imageIntervalCount = imageIntervalCount + 1;
if (selectedImageCount == 9) {
clearInterval(imageInterval);
if (qSelector(SUBMIT_BUTTON)) {
qSelector(SUBMIT_BUTTON).click();
}
return selectImagesAfterDelay(5);
} else if (imageIntervalCount > 8) {
clearInterval(imageInterval);
return selectImages();
} else if(selectedImageCount > 2 && MATCH_IMAGES_USING_TRAINER && NEW_WORD_IDENTIFIED && imageIntervalCount > 4){
clearInterval(imageInterval);
if (qSelector(SUBMIT_BUTTON)) {
qSelector(SUBMIT_BUTTON).click();
}
return selectImagesAfterDelay(5);
} else if(MATCH_IMAGES_USING_TRAINER && NEW_WORD_IDENTIFIED && imageIntervalCount > 6){
clearInterval(imageInterval);
if (qSelector(SUBMIT_BUTTON)) {
qSelector(SUBMIT_BUTTON).click();
}
return selectImagesAfterDelay(5);
}else{
}
}, 3000);
}
function waitForImagesToAppear() {
var checkImagesSelectedCount = 0;
var waitForImagesInterval = setInterval(function() {
checkImagesSelectedCount = checkImagesSelectedCount + 1;
if (qSelectorAll(IMAGE) && qSelectorAll(IMAGE).length == 9) {
clearInterval(waitForImagesInterval);
return selectImages();
} else if (checkImagesSelectedCount > 60) {
clearInterval(waitForImagesInterval);
} else if (qSelector(CHALLENGE_INPUT_FIELD) && qSelector(NO_SELECTION).getAttribute(ARIA_HIDDEN) != true) {
clearInterval(waitForImagesInterval);
return imageUsingOCR();
} else {
//TODO: Identify Objects for the following (Ex: bed,chair,table etc)
//Ref for clothing: https://www.youtube.com/watch?v=yWwzFnAnrLM, https://www.youtube.com/watch?v=FiNglI1wRNk,https://www.youtube.com/watch?v=oHAkK_9UCQ8
var targetNodeList = ["Yes", "3 or more items of furniture", "Equipped space or room", "Photo is clean, no watermarks, logos or text overlays", "An interior photo of room", "Unsure", "Photo is sharp"];
for (var j = 0; j < targetNodeList.length; j++) {
var targetNode = Array.from(qSelectorAll('div'))
.find(el => el.textContent === targetNodeList[j]);
if (targetNode) {
//console.log("Target Node Found");
clearInterval(waitForImagesInterval);
return unsure(targetNodeList[j]);
}
}
}
}, 5000);
}
//TODO: Convert Image to base64 to avoid multiple calls
function preProcessImage(base64Image, imageUrl) {
//Darken and Brighten
Jimp.read(base64Image).then(function(data) {
data.color([
{
apply: 'darken',
params: [20]
}
]).color([
{
apply: 'brighten',
params: [20]
}
])
.greyscale()
.getBase64(Jimp.AUTO, function(err, src) {
var img = document.createElement("img");
img.setAttribute("src", src);
worker.recognize(img, LANGUAGE_FOR_OCR).then(function(data) {
//Remove Image After recognizing
img.removeAttribute("src");
//If null change to other methods
if (data && data.text && data.text.length > 0) {
inputChallenge(postProcessImage(data), imageUrl);
return selectImages();
} else {
preProcessImageMethod2(base64Image, imageUrl);
}
});
});
});
}
function preProcessImageMethod2(base64Image, trimageUrl) {
//Multi Contrast darken and brighten
Jimp.read(base64Image).then(function(data) {
data.color([
{
apply: 'darken',
params: [20]
}
]).contrast(1).color([
{
apply: 'brighten',
params: [20]
}
]).contrast(1).greyscale().getBase64(Jimp.AUTO, function(err, src) {
var img = document.createElement("img");
img.setAttribute("src", src);
worker.recognize(img, LANGUAGE_FOR_OCR).then(function(data) {
//Remove Image After recognizing
img.removeAttribute("src");
if (data && data.text && data.text.length > 0) {
inputChallenge(postProcessImage(data), imageUrl);
return selectImages();
} else {
preProcessImageMethod3(base64Image, imageUrl);
}
});
});
});
}
function preProcessImageMethod3(base64Image, imageUrl) {
//Multi Contrast only brighten
Jimp.read(base64Image).then(function(data) {
data.contrast(1).color([{
apply: 'brighten',
params: [20]
}
])
.contrast(1)
.greyscale()
.getBase64(Jimp.AUTO, function(err, src) {
var img = document.createElement("img");
img.setAttribute("src", src);
worker.recognize(img, LANGUAGE_FOR_OCR).then(function(data) {
//Remove Image After recognizing
img.removeAttribute("src");
if (data && data.text && data.text.length > 0) {
inputChallenge(postProcessImage(data), imageUrl);
return selectImages();
} else {
preProcessImageMethod4(base64Image, imageUrl);
}
});
});
});
}
function preProcessImageMethod4(base64Image, imageUrl) {
//Resize the image
Jimp.read(base64Image).then(function(data) {
data.resize(256, Jimp.AUTO)
.quality(60) // set JPEG quality
.greyscale() // set greyscale
.getBase64(Jimp.AUTO, function(err, src) {
var img = document.createElement("img");
img.setAttribute("src", src);
worker.recognize(img, LANGUAGE_FOR_OCR).then(function(data) {
//Remove Image After recognizing
img.removeAttribute("src");
inputChallenge(postProcessImage(data), imageUrl);
return selectImages();
});
});
});
}
function postProcessImage(data) {
var filterValues = ['\n', '{', '}', '[', ']'];
for (var i = 0; i < filterValues.length; i++) {
data.text = data.text.replaceAll(filterValues[i], "");
}
return data;
}
// Using Tesseract to recognize images
function imageUsingOCR() {
try {
//console.log("Image using OCR");
var urlString = qSelector(IMAGE_FOR_OCR).style.background;
var imageUrl = getUrlFromString(urlString);
if (imageUrl == 0) {
return selectImagesAfterDelay(1);
}
Jimp.read(imageUrl).then(function(data) {
data.getBase64(Jimp.AUTO, function(err, src) {
var img = document.createElement("img");
img.setAttribute("src", src);
var base64Image = img.src;
preProcessImage(base64Image, imageUrl);
})});
} catch (err) {
console.log(err.message);
return selectImagesAfterDelay(1);
}
}
async function convertTextToImage(text) {
//Convert Text to image
var canvas = document.createElement("canvas");
var textLength = text.length;
canvas.width = 60 * textLength;
canvas.height = 80;
var ctx = canvas.getContext('2d');
ctx.font = "30px Arial";
ctx.fillText(text, 10, 50);
var img = document.createElement("img");
img.src = canvas.toDataURL();
return img;
}
async function convertImageToText(img) {
await initializeTesseractWorker();
//Convert Image to Text
var text = "";
await worker.recognize(img, LANGUAGE_FOR_OCR).then(function(data) {
text = data.text;
// console.log("Recognized Text::" + text);
});
return text.trim();
}
function areExampleImageUrlsChanged() {
var prevExampleUrls = exampleImageList;
currentExampleUrls = [];
if (qSelectorAll(CHALLENGE_IMAGE).length > 0) {
for (let i = 0; i < qSelectorAll(CHALLENGE_IMAGE).length; i++) {
var urlString = qSelectorAll(CHALLENGE_IMAGE)[i].style.background;
var imageUrl = getUrlFromString(urlString);
if (imageUrl == 0) {
console.log("Image url is empty, Retrying...");
return true;
}
currentExampleUrls[i] = imageUrl;
}
}
if (prevExampleUrls.length != currentExampleUrls.length) {
return true;
}
for (let i = 0; i < currentExampleUrls.length; i++) {
if (prevExampleUrls[i] != currentExampleUrls[i]) {
return true;
}
}
return false;
}
async function identifyObjectsFromImages(imageUrlList) {
identifiedObjectsList = [];
for (let i = 0; i < imageUrlList.length; i++) {
try {
let img = new Image();
img.crossOrigin = "Anonymous";
img.src = imageUrlList[i];
img.onload = () => {
initializeTensorFlowModel().then(model => model.detect(img))
.then(function(predictions) {
let predictionslen = predictions.length;
let hashSet = new Set();
for (let j = 0; j < predictionslen; j++) {
hashSet.add(predictions[j].class);
}
hashSet.forEach((key) => {
identifiedObjectsList.push(key);
});
img.removeAttribute("src");
if (i == imageUrlList.length - 1) {
identifyObjectsFromImagesCompleted = true;
}
})
}
} catch (e) {
console.log(e);
}
}
}
async function identifyObjectsFromImagesUsingMobileNet(imageUrlList) {
identifiedObjectsList = [];
for (let i = 0; i < imageUrlList.length; i++) {
try {
let img = new Image();
img.crossOrigin = "Anonymous";
img.src = imageUrlList[i];
img.onload = () => {
initializeTensorFlowMobilenetModel().then(model => model.classify(img))
.then(function(predictions) {
let predictionslen = predictions.length;
let hashSet = new Set();
for (let j = 0; j < predictionslen; j++) {
if(predictions[j].className.includes(",")){
var multiPredictions = predictions[j].className.split(',');
for(let k=0; k< multiPredictions.length;k++){
hashSet.add(multiPredictions[k].trim());
}
}else{
hashSet.add(predictions[j].className);
}