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<!DOCTYPE html>
<!--
SignSpeak - A Communicator For Signers
Copyright (C) 2025 Shantanu Khedkar
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
-->
<html lang="en">
<head></head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0" />
<title>Sign Language Interpreter</title>
<script>
window.console = window.console || function (t) { };
</script>
<!-- For Android
<link rel="stylesheet" type="text/css" href="http://127.0.0.1:8125/assets/static/browser_detect.css" />
-->
<!-- For Web-->
<link rel="stylesheet" type="text/css" href="static/browser_detect.css" />
</head>
<body translate="no" style="overflow: scroll;">
<!-- For Android
<script src="../assets/ipc/androidjs.js"></script>
<script src="http://127.0.0.1:8125/assets/static/drawing_utils.js" crossorigin="anonymous"></script>
<script src="http://127.0.0.1:8125/assets/static/hands.js" crossorigin="anonymous"></script>
<script src="http://127.0.0.1:8125/assets/static/tfjs-core"></script>
<script src="http://127.0.0.1:8125/assets/static/tfjs-backend-cpu"></script>
<script src="http://127.0.0.1:8125/assets/static/tf-tflite.min.js"></script>
<script src="http://127.0.0.1:8125/assets/static/vision_wasm_internal.js" crossorigin="anonymous"></script>
-->
<!-- For Web -->
<script src="https://cdn.jsdelivr.net/npm/@mediapipe/drawing_utils/drawing_utils.js"
crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/@mediapipe/hands/hands.js" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/@tensorflow/tfjs-core"></script>
<script src="https://cdn.jsdelivr.net/npm/@tensorflow/tfjs-backend-cpu"></script>
<script src="https://cdn.jsdelivr.net/npm/@tensorflow/tfjs-tflite/dist/tf-tflite.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/@mediapipe/[email protected]/wasm/vision_wasm_internal.js"
crossorigin="anonymous"></script>
<section id="home-page">
<div class="container">
<video id="webcam" style="display:none" autoplay playsinline muted></video>
<div class="canvas_wrapper" id="canvas_wrapper">
<button id="switch-camera"
style="display:none; position: absolute; top:10px; left:10px; padding:5px; height:40px; width:40px; text-align: center; border-radius: 12.25px; font-size: 20px; font-weight: 900; border:none; background-color: #ffffff2e; backdrop-filter: blur(30px); color:black; box-shadow: 0px 4px 20px 4px rgba(0, 0, 0, 0.38); z-index:100">
<span>⟳</span>
</button>
<canvas class="output_canvas" id="output_canvas" width="100%" height="500%"></canvas>
<center>
<button id="webcamButton" style="font-weight: 600;">
<span>Enable Webcam</span>
</button>
<div class="mode_switch_wrapper">
<div class="mode_switch" id="mode-switch" style="display: none;">
<div class="mode_selector" id="modeSelector"></div>
<div class="mode_switch_modeBtn">Text</div>
<div class="mode_switch_modeBtn">Word</div>
</div>
</div>
</center>
</div>
</div>
<center>
<img id="output_image" style="display:none"></img>
<div class="wrapper_result">
<div id="predicted_result">></div>
</div>
<div class="wrapper_text">
<textarea id="text" onkeyup="set_output_array(this.value)"></textarea>
<div class="textControls">
<button id="undoButton" onclick="undo()">
<svg xmlns="http://www.w3.org/2000/svg" height="16px" width="16px"
viewBox="0 0 576 512"><!--!Font Awesome Free 6.7.2 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free Copyright 2025 Fonticons, Inc.-->
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</svg>
</button>
<button id="speakButton" onclick="speak(document.getElementById('text').value)">
<span>Listen</span>
<svg xmlns="http://www.w3.org/2000/svg" height="16px" width="16px"
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</svg>
</button>
<button id="clearButton" onclick="clear_output_array()">
<svg xmlns="http://www.w3.org/2000/svg" height="16px" width="16px"
viewBox="0 0 448 512"><!--!Font Awesome Free 6.7.2 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free Copyright 2025 Fonticons, Inc.-->
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</svg>
</button>
</div>
<audio id="audioPlayer">-</audio>
</div>
<div id="logUI" style="display:none"></div>
</center>
</section>
<section id="info-page" style="display:none; padding: 10px;">
<center>
<svg width="77.5" height="103" viewBox="0 0 310 412" fill="none" xmlns="http://www.w3.org/2000/svg">
<g filter="url(#filter0_d_21435_307)">
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</filter>
</defs>
</svg>
<h1>SpeakSign</h1>
</center>
<hr>
<div class="about-card">
<span>Version</span>
<span>1.2.5b</span>
</div>
<div class="about-card">
<span>Author</span>
<span>Shantanu Khedkar</span>
</div>
<div class="about-card">
<!--For Android
<img src="http://127.0.0.1:8125/assets/static/ASL.png" style="height:auto; width:auto; margin: -5px"></img>
-->
<!--For Web-->
<img src="static/ASL.png" style="height:auto; width:auto; margin: -5px"></img>
</div>
<div class="about-card">
<span>Source</span>
<span><a href="https://github.com/Shantanu-Khedkar/silangint"
target="_blank">https://github.com/Shantanu-Khedkar/silangint</a></span>
</div>
<div class="about-card">
<span>License</span>
<span>GPL-v3.0 - <a href="https://github.com/Shantanu-Khedkar/silangint/blob/master/LICENSE"
target="_blank">https://github.com/Shantanu-Khedkar/silangint/blob/master/LICENSE</a></span>
</div>
<div class="about-card">
<span>Copyright Notice</span>
<span>
SignSpeak - A Communicator For Signers
<br>
Copyright (C) 2025 Shantanu Khedkar
<br>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
<br>
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
<br>
You should have received a copy of the GNU General Public License
along with this program. If not, see https://www.gnu.org/licenses.
</span>
</div>
</section>
<section id="settings-page" style="display:none">
<div
style="display:inline-flex; align-items:center; gap:10px; padding:12px; margin-bottom: 24px; margin-top: 16px;">
<div style="padding:10px; display: inherit;" onclick="settingsBack()">
<svg xmlns="http://www.w3.org/2000/svg" width="30px" height="30px"
viewBox="0 0 320 512"><!--!Font Awesome Free 6.7.2 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free Copyright 2025 Fonticons, Inc.-->
<path
d="M41.4 233.4c-12.5 12.5-12.5 32.8 0 45.3l160 160c12.5 12.5 32.8 12.5 45.3 0s12.5-32.8 0-45.3L109.3 256 246.6 118.6c12.5-12.5 12.5-32.8 0-45.3s-32.8-12.5-45.3 0l-160 160z" />
</svg>
</div>
<span class="settings-header">Settings</span>
</div>
<form id="speechForm" style="display:block;">
<div class="about-card">
<label for="language">Select Language:</label>
<select id="language"></select>
</div>
<div class="about-card">
<label for="voice">Select Voice:</label>
<select id="voice"></select>
</div>
<div class="about-card">
<label for="rate">Rate:</label>
<input type="range" id="rate" min="0.1" max="2" step="0.1" value="1">
<span style="display:none" id="rateValue">1</span>
</div>
<div class="about-card">
<label for="pitch">Pitch:</label>
<input type="range" id="pitch" min="0" max="2" step="0.1" value="1">
<span style="display:none" id="pitchValue">1</span>
</div>
<div class="about-card">
<label for="testText">Test Voice:</label>
<input id="testText" value="Hello, this is a test!" placeholder="Enter test sentence..."
onkeyup="set_output_array(this.value)"></input>
<button type="button" id="testSpeakButton"
onclick="document.getElementById('text').value = document.getElementById('testText').value; document.getElementById('speakButton').click()">
<a>Listen 🔊</a>
</button>
</div>
<div class="about-card">
<label for="duration">Input Duration <span id="durationValue"></span>(ms)</label>
<input type="range" id="duration" min="200" max="1500" step="1" value="300"
oninput="document.getElementById('durationValue').innerText=this.value">
</div>
<div class="about-card">
<label for="repeat">Repeat Buffer <span id="repeatValue"></span>(ms)</label>
<input type="range" id="repeat" min="200" max="700" step="1" value="500"
oninput="document.getElementById('repeatValue').innerText=this.value">
</div>
<div class="about-card" style="flex-direction:row; align-items: center;">
<label style="margin-right: 10px;" for="duration">Natural Input :</label>
<label class="switch">
<input type="checkbox" id="natInp" unchecked>
<span class="slider round"></span>
</label>
</div>
</form>
</section>
<div class="bottom-nav">
<div id="info-" class="bottom-nav-btn">
<svg xmlns="http://www.w3.org/2000/svg" height="28px" width="28px"
viewBox="0 0 512 512"><!--!Font Awesome Free 6.7.2 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free Copyright 2025 Fonticons, Inc.-->
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</svg>
</div>
<div id="home-" class="bottom-nav-btn center-btn">
<!--For Android
<img src="http://127.0.0.1:8125/assets/static/logo_sil.svg" height="48" width="48px"></img>
-->
<img src="/static/logo_sil.svg" height="48" width="48px"></img>
</div>
<div id="settings-" class="bottom-nav-btn">
<svg xmlns="http://www.w3.org/2000/svg" height="28px" width="28px"
viewBox="0 0 512 512"><!--!Font Awesome Free 6.7.2 by @fontawesome - https://fontawesome.com License - https://fontawesome.com/license/free Copyright 2025 Fonticons, Inc.-->
<path fill="#5d5d5d"
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</svg>
</div>
</div>
<script>
var word_list = []
var speechSupported = true
var prevSpeech = ""
var prevSettings = ""
logUI = document.getElementById("logUI")
const speechSynthesis = window.speechSynthesis;
const voiceSelect = document.getElementById('voice');
const textInput = document.getElementById('text');
const languageSelect = document.getElementById('language');
const speakButton = document.getElementById('speakButton');
const rateInput = document.getElementById('rate');
const pitchInput = document.getElementById('pitch');
const rateValue = document.getElementById('rateValue');
const pitchValue = document.getElementById('pitchValue');
let voices = [];
const languageNames = {
'en': '- English ',
'mra': '- Marathi',
'mr': '- Marathi',
'hi': '- Hindi',
'es': 'Spanish',
'fr': 'French',
'de': 'German',
'it': 'Italian',
'af': 'Afrikaans',
'am': 'Amharic',
'an': 'Aragonese',
'ar': 'Arabic',
'as': 'Assamese',
'az': 'Azerbaijani',
'bg': 'Bulgarian',
'bn': 'Bengali',
'bpy': 'Bishnupriya Manipuri',
'bs': 'Bosnian',
'ca': 'Catalan',
'cs': 'Czech',
'cy': 'Welsh',
'da': 'Danish',
'de': 'German',
'el': 'Greek',
'eo': 'Esperanto',
'es': 'Spanish',
'et': 'Estonian',
'eu': 'Basque',
'fa': 'Persian',
'fi': 'Finnish',
'fr': 'French',
'ga': 'Irish',
'gd': 'Scottish Gaelic',
'gn': 'Guarani',
'grc': 'Ancient Greek',
'gu': 'Gujarati',
'hak': 'Hakka',
'hr': 'Croatian',
'ht': 'Haitian Creole',
'hu': 'Hungarian',
'hy': 'Armenian',
'ia': 'Interlingua',
'id': 'Indonesian',
'is': 'Icelandic',
'it': 'Italian',
'ja': 'Japanese',
'jbo': 'Lojban',
'ka': 'Georgian',
'kk': 'Kazakh',
'kl': 'Kalaallisut',
'kn': 'Kannada',
'ko': 'Korean',
'kok': 'Konkani',
'ku': 'Kurdish',
'ky': 'Kyrgyz',
'la': 'Latin',
'lfn': 'Lingua Franca Nova',
'lt': 'Lithuanian',
'lv': 'Latvian',
'mi': 'Māori',
'mk': 'Macedonian',
'ml': 'Malayalam',
'ms': 'Malay',
'mt': 'Maltese',
'my': 'Burmese',
'nci': 'Navajo',
'ne': 'Nepali',
'nl': 'Dutch',
'no': 'Norwegian',
'om': 'Oromo',
'or': 'Odia',
'pa': 'Punjabi',
'pap': 'Papiamento',
'pl': 'Polish',
'pt': 'Portuguese',
'quc': 'K’iche’',
'ro': 'Romanian',
'ru': 'Russian',
'sd': 'Sindhi',
'shn': 'Shan',
'si': 'Sinhala',
'sk': 'Slovak',
'sl': 'Slovenian',
'sq': 'Albanian',
'sr': 'Serbian',
'sv': 'Swedish',
'sw': 'Swahili',
'ta': 'Tamil',
'te': 'Telugu',
'tn': 'Tswana',
'tr': 'Turkish',
'tt': 'Tatar',
'ur': 'Urdu',
'vi': 'Vietnamese'
};
function undo() {
word_list.pop()
textInput.value = word_list.join('')
}
function clear() {
word_list = []
textInput.value = ''
}
function populateVoiceList() {
voices = speechSynthesis.getVoices();
updateLanguageList();
updateVoiceList();
}
async function populateTTWVoices() {
const url = "http://127.0.0.1:8125/assets/static/voicesList.txt";
try {
const response = await fetch(url);
if (!response.ok) {
throw new Error(`Response status: ${response.status}`);
}
var voicesList = await response.text();
voicesList = voicesList.split('\n')
voicesList.pop()
voicesList.forEach(voice => {
const option = document.createElement('option');
option.value = voice;
option.textContent = voice;
voiceSelect.appendChild(option);
})
} catch (error) {
console.error(error.message);
}
}
async function populateTTWLangs() {
const url = "http://127.0.0.1:8125/assets/static/langList.txt";
try {
const response = await fetch(url);
if (!response.ok) {
throw new Error(`Response status: ${response.status}`);
}
var langsList = await response.text();
langsList = langsList.split('\n')
langsList.pop()
unknownLangs = []
langsList.forEach(lang => {
if (!languageNames[lang]) {
unknownLangs.push(lang)
} else {
const option = document.createElement('option');
option.value = lang;
option.textContent = languageNames[lang];
languageSelect.appendChild(option);
}
})
unknownLangs.forEach(lang => {
const option = document.createElement('option');
option.value = lang;
option.textContent = lang;
languageSelect.appendChild(option);
})
} catch (error) {
console.error(error.message);
}
const optionNodes = Array.from(languageSelect.children);
const comparator = new Intl.Collator('en'.slice(0, 2)).compare;
optionNodes.sort((a, b) => comparator(a.textContent, b.textContent));
optionNodes.forEach((option) => languageSelect.appendChild(option));
languageSelect.children[0].selected = "selected"
}
function getBaseLanguageCode(lang) {
return lang.split('-').slice(0, 2).join('-');
}
function getBaseBaseLanguageCode(lang) {
return lang.split('-').slice(0, 1).join('-');
}
function getModifierLanguageCode(lang) {
return lang.split('-').slice(1, 3).join('-');
}
function updateLanguageList() {
const uniqueLanguages = new Set(voices.map(voice => getBaseLanguageCode(voice.lang)));
languageSelect.innerHTML = '';
Object.keys(languageNames).forEach(lang => {
if (uniqueLanguages.has(lang)) {
const option = document.createElement('option');
option.value = lang;
option.textContent = languageNames[lang];
languageSelect.appendChild(option);
}
});
uniqueLanguages.forEach(lang => {
if (!languageNames[lang]) {
if (!languageNames[getBaseBaseLanguageCode(lang)]) {
const option = document.createElement('option');
option.value = lang;
option.textContent = lang;
languageSelect.appendChild(option);
}
else {
const option = document.createElement('option');
option.value = lang;
option.textContent = `${languageNames[getBaseBaseLanguageCode(lang)]} (${getModifierLanguageCode(lang)})`;
languageSelect.appendChild(option);
}
}
});
const optionNodes = Array.from(languageSelect.children);
const comparator = new Intl.Collator('en'.slice(0, 2)).compare;
optionNodes.sort((a, b) => comparator(a.textContent, b.textContent));
optionNodes.forEach((option) => languageSelect.appendChild(option));
languageSelect.children[0].selected = "selected"
}
function updateVoiceList() {
const selectedLanguage = languageSelect.value;
voiceSelect.innerHTML = '';
voices.forEach((voice) => {
if (getBaseLanguageCode(voice.lang) === selectedLanguage) {
const option = document.createElement('option');
option.value = voice.name;
option.textContent = `${voice.name} (${voice.lang})`;
voiceSelect.appendChild(option);
}
});
}
function settingsBack() {
document.getElementById("home-").click()
}
function logMessage(msg) {
const span = document.createElement('span');
span.textContent = msg;
logUI.appendChild(span);
logUI.appendChild(document.createElement('br')); // Add a line break
}
const originalFetch = window.fetch;
// Override the fetch function
window.fetch = async function (input, init) {
// Convert input to URL if it's a Request object
const url = typeof input === 'string' ? input : input.url;
var newUrl = url
if (url == 'https://cdn.jsdelivr.net/npm/@mediapipe/[email protected]/wasm/vision_wasm_internal.wasm') {
//newUrl = 'http://127.0.0.1:8125/assets/static/vision_wasm_internal.wasm' //For Android
newUrl = 'https://cdn.jsdelivr.net/npm/@mediapipe/[email protected]/wasm/vision_wasm_internal.wasm' // For Web
}
console.log("This was FETCHED: ", newUrl)
// Call the original fetch function with the new URL
return originalFetch(newUrl, init);
};
if ('speechSynthesis' in window) {
speechSynthesis.onvoiceschanged = () => {
populateVoiceList();
};
languageSelect.addEventListener('change', updateVoiceList);
rateInput.addEventListener('input', () => {
rateValue.textContent = rateInput.value;
});
pitchInput.addEventListener('input', () => {
pitchValue.textContent = pitchInput.value;
});
speakButton.addEventListener('click', () => {
const utterance = new SpeechSynthesisUtterance(textInput.value);
const selectedVoice = voices.find(voice => voice.name === voiceSelect.value);
utterance.voice = selectedVoice;
utterance.rate = rateInput.value;
utterance.pitch = pitchInput.value;
speechSynthesis.speak(utterance);
});
populateVoiceList()
// Create an utterance object ⣿
} else {
speechSupported = false;
console.log('Text-to-speech not supported.');
populateTTWLangs()
populateTTWVoices()
}
function speak(toSpeak) {
console.log("speech api support", speechSupported)
console.log("condition: ", !speechSupported)
console.log("condition2: ", speechSupported == false)
console.log("speech api support", speechSupported)
if (!speechSupported) {
const audioPlayer = document.getElementById('audioPlayer');
var currSettings = '&v=' + encodeURIComponent(languageSelect.value + "+" + voiceSelect.value) + '&r=' + Math.round(rateInput.value * 7.5).toString() + '&p=' + Math.round(pitchInput.value * 49.5).toString()
if ((prevSpeech != toSpeak) || (prevSettings != currSettings)) {
prevSpeech = toSpeak
prevSettings = currSettings
audioPlayer.src = 'http://127.0.0.1:8125/speech?t=' + encodeURIComponent(toSpeak) + currSettings
console.log("Set src: ", audioPlayer.src)
}
audioPlayer.play() // Play the audio
.then(() => {
console.log('Audio is playing');
})
.catch(error => {
console.error('Error playing audio:', error);
prevSpeech = ''
});
} else if ('speechSynthesis' in window) {
console.log("probably spoken")
} else {
console.log("Text to speech is now not supported")
}
}
function set_output_array(text) {
console.log(text)
word_list = text.split("");
console.log(word_list)
}
function clear_output_array() {
word_list = [];
textInput.value = ""
}
</script>
<script type="module">
document.getElementById("info-").addEventListener("click", switchPage.bind(null, "info-"));
document.getElementById("home-").addEventListener("click", switchPage.bind(null, "home-"));
document.getElementById("settings-").addEventListener("click", switchPage.bind(null, "settings-"));
//import { HandLandmarker, FilesetResolver } from "http://127.0.0.1:8125/assets/static/[email protected]" // For Android
import { HandLandmarker, FilesetResolver } from "https://cdn.jsdelivr.net/npm/@mediapipe/[email protected]"; // For Web
let handLandmarker = undefined;
let runningMode = "IMAGE";
let enableWebcamButton;
let webcamRunning = false;
var time_since_letter = 0
var last_letter_time = 0
var maxPercentage = 1
function inputFrequency() {
return document.getElementById('duration').value
}
function repeatBuffer() {
return document.getElementById('repeat').value
}
document.getElementById('durationValue').innerText = inputFrequency()
document.getElementById('repeatValue').innerText = repeatBuffer()
var is_first_run = 1
const letter_list = ["A", "B", "", "D", "E", "F", "G", "", "I", "J", "K", "L", "M", "N", "O", "P", "", "R", "S", "T", "U", "V", "W", "", "Y", "Z", ""]
const phrase_list = ["Ere-ọwurọ", "Bọkọ", "Bokọ???", "Ere-Alẹ", "Mo dọkpẹ", "Ẹrẹ"]
// const phrase_list = [" Good-morning", " Hello", " How are you", "Good-evening", " Thanks", " You"]
var index_list = letter_list
// Before we can use HandLandmarker class we must wait for it to finish
// loading. Machine Learning models can be large and take a moment to
// get everything needed to run.
const createHandLandmarker = async () => {
const vision = await FilesetResolver.forVisionTasks("https://cdn.jsdelivr.net/npm/@mediapipe/[email protected]/wasm"); // This doesnt really matter as this is already imported somewhere else, and the code runs fine without the request
handLandmarker = await HandLandmarker.createFromOptions(vision, {
baseOptions: {
//modelAssetPath: `http://127.0.0.1:8125/assets/static/hand_landmarker.task`, // For Android
modelAssetPath: `https://storage.googleapis.com/mediapipe-models/hand_landmarker/hand_landmarker/float16/1/hand_landmarker.task`, // For Web
delegate: "GPU"
},
runningMode: runningMode,
numHands: 1
});
};
createHandLandmarker();
//const MODEL_PATH = "http://127.0.0.1:8125/assets/static/model.tflite" // For Android
//const WORD_MODEL = "http://127.0.0.1:8125/assets/static/word.tflite" // For Android
const MODEL_PATH = "/exported" // For Web
const WORD_MODEL = "/word" // For Web
const letterDetector = tflite.loadTFLiteModel(MODEL_PATH);
const wordDetector = tflite.loadTFLiteModel(WORD_MODEL);
var objectDetector = letterDetector
/********************************************************************
// Continuously grab images
********************************************************************/
document.getElementById("mode-switch").addEventListener('click', function () {
document.getElementById('modeSelector').classList.toggle('right')
var modeState = Array.from(document.getElementById('modeSelector').classList).includes('right')
console.log("swicth", modeState)
if (modeState) {
console.log("word")
objectDetector = wordDetector
index_list = phrase_list
} else {
console.log("letter")
objectDetector = letterDetector
index_list = letter_list
}
})
var global_res = 0;
var global_cres = ''
const video = document.getElementById("webcam");
const canvasElement = document.getElementById("output_canvas");
const canvasCtx = canvasElement.getContext("2d", { willReadFrequently: true });
var x_array = []
var y_array = []
var video_facing_mode = "user"
// Check if webcam access is supported.
const hasGetUserMedia = () => { var _a; return !!((_a = navigator.mediaDevices) === null || _a === void 0 ? void 0 : _a.getUserMedia); };
// If webcam supported, add event listener to button for when user
// wants to activate it.
if (hasGetUserMedia()) {
enableWebcamButton = document.getElementById("webcamButton");
enableWebcamButton.addEventListener("click", enableCam);
document.getElementById("switch-camera").addEventListener("click", switch_camera);
}
else {
console.warn("getUserMedia() is not supported by your browser");
}
async function switch_camera() {
if (video_facing_mode == 'user') {
webcamRunning = false
video_facing_mode = 'environment'
await load_camera()
webcamRunning = true
}
else {
webcamRunning = false
video_facing_mode = 'user'
await load_camera()
webcamRunning = true
}
}
// Enable the live webcam view and start detection.
function enableCam(event) {
if (!handLandmarker) {
console.log("Wait! objectDetector not loaded yet.");
return;
}
if (webcamRunning === true) {
webcamRunning = false;
enableWebcamButton.innerText = "ENABLE PREDICTIONS";
}
else {
webcamRunning = true;
enableWebcamButton.style = "display:none"
document.getElementById("switch-camera").style.display = "block"
document.getElementById("mode-switch").style.display = "flex"
}
// getUsermedia parameters.
load_camera()
}
function switchPage(elem) {
prevSpeech = ""
var pH = document.getElementById("home-page")
var pI = document.getElementById("info-page")
var pS = document.getElementById("settings-page")
pH.style.display = "none"
pI.style.display = "none"
pS.style.display = "none"
document.getElementById(elem + "page").style.display = "block"
if (elem != "home-") {
webcamRunning = false
document.getElementById("webcamButton").style = "display:block"
document.getElementById("switch-camera").style.display = "none"
document.getElementById("mode-switch").style.display = "none"
var canvas = document.getElementById("output_canvas")
const context = canvas.getContext('2d');
context.clearRect(0, 0, canvas.width, canvas.height);
} else {
textInput.value = ""
clear_output_array()
var canvas = document.getElementById("output_canvas")
const context = canvas.getContext('2d');
context.clearRect(0, 0, canvas.width, canvas.height);
}
}
function load_camera() {
try {
var stream = video.srcObject;
// now get all tracks
var tracks = stream.getTracks();
// now close each track by having forEach loop
tracks.forEach(function (track) {
// stopping every track
track.stop();
});
// assign null to srcObject of video
video.srcObject = null;
} catch (error) {
console.error(error.message);
}
const constraints = {
video: {
facingMode: video_facing_mode
}
};
// Activate the webcam stream.
navigator.mediaDevices.getUserMedia(constraints)
.then((stream) => {
video.srcObject = stream;
video.play();
video.addEventListener("loadeddata", predictWebcam);
})
.catch((error) => {
console.error("Error accessing the camera: ", error.name, error.message, error.code);
});
}
let lastVideoTime = -1;
let results = undefined;
console.log(video);
async function predictWebcam() {
if (video.videoHeight == 0) {
return
}
canvasElement.width = window.innerWidth;
// Start detecting the stream.
if (runningMode === "IMAGE") {
runningMode = "VIDEO";
await handLandmarker.setOptions({ runningMode: "VIDEO" });
}
let startTimeMs = performance.now();
if (lastVideoTime !== video.currentTime) {
lastVideoTime = video.currentTime;
results = handLandmarker.detectForVideo(video, startTimeMs);
}
canvasCtx.save();
canvasCtx.clearRect(0, 0, canvasElement.width, canvasElement.height);
if (is_first_run == 1) {
var elem_rect = document.getElementById("output_canvas").getBoundingClientRect()
console.log(elem_rect.height | 0);
document.getElementById("canvas_wrapper").style.height = (elem_rect.height | 0).toString() + "px"
is_first_run = 0
}
if (results.landmarks && results.handednesses[0]) {
var current_time = Math.round(Date.now())
if (results.handednesses[0][0].categoryName == "Left") {
if (!Array.from(document.getElementById('modeSelector').classList).includes('right')) {
annotateImage()
}
canvasCtx.drawImage(video, 0, 0, canvasElement.width, (video.videoHeight / video.videoWidth) * canvasElement.width)
annotateImage(Array.from(document.getElementById('modeSelector').classList).includes('right'))
console.log("LEFT")
//detectSign()
} else {
canvasCtx.drawImage(video, 0, 0, canvasElement.width, (video.videoHeight / video.videoWidth) * canvasElement.width)
console.log("RIGHT")
var current_result = "_"
var previous_result = document.getElementById("predicted_result").innerText
document.getElementById("predicted_result").innerText = current_result
if (previous_result == current_result) {
if (current_time - last_letter_time > getNaturalLength(" ")) {
last_letter_time = current_time
word_list.push(" ")
triggerPulse()
console.log(word_list)
document.getElementById("text").value = word_list.join('')
}
}
else {
last_letter_time = current_time
}
}
document.getElementById("predicted_result").style.width = String((current_time - last_letter_time) / getNaturalLength(global_cres) * 100) + "%"
}
else {
canvasCtx.drawImage(video, 0, 0, canvasElement.width, (video.videoHeight / video.videoWidth) * canvasElement.width)
if (30 > calculateCanvasBrightness(canvasElement)) {
var current_result = "<"
var previous_result = document.getElementById("predicted_result").innerText
document.getElementById("predicted_result").innerText = current_result
var current_time = Math.round(Date.now())
console.log(current_time - last_letter_time)
if (previous_result == current_result) {
if (current_time - last_letter_time > 400) {
last_letter_time = current_time
word_list.pop()
console.log(word_list)
document.getElementById("text").value = word_list.join('')
}
}
else {
last_letter_time = current_time
}
} else {
last_letter_time = Math.round(Date.now())
document.getElementById("predicted_result").style.width = String(0) + "%"
}
}
canvasCtx.restore();
// Keep predicting
if (webcamRunning === true) {
window.requestAnimationFrame(predictWebcam);
}
}
function annotateImage(firstA = true) {
//console.log(results.landmarks)
if (results.landmarks[0]) {
x_array = []
y_array = []
results.landmarks[0].forEach(iterate)
//console.log(x_array)
var image_height = (video.videoHeight / video.videoWidth) * canvasElement.width
var image_width = canvasElement.width
var min_x = Math.min(...x_array) * image_width
var min_y = Math.min(...y_array) * image_height
var max_x = Math.max(...x_array) * image_width
var max_y = Math.max(...y_array) * image_height
var sect_height = max_y - (min_y)
var sect_width = max_x - (min_x)
var center_x = (min_x + max_x) / 2
var center_y = (min_y + max_y) / 2
var sect_diameter = 50
if (sect_height > sect_width) {
sect_diameter = sect_height
//console.log("sect_height", sect_diameter)
}
if (sect_height < sect_width) {
sect_diameter = sect_width
// console.log("sect_width", sect_diameter)
}
sect_diameter = sect_diameter + 50
var sect_radius = sect_diameter / 2
var crop_top = center_y - sect_radius
var crop_bottom = center_y + sect_radius
var crop_left = center_x - sect_radius
var crop_right = center_x + sect_radius
if (crop_top < 0) {
crop_top = 0
}
if (crop_left < 0) {
crop_left = 0
}
if (crop_right > image_width) {
crop_right = image_width
}
if (crop_bottom > image_height) {
crop_bottom = image_height
}
if (firstA == true) {
canvasCtx.beginPath();
canvasCtx.rect(crop_left, crop_top, crop_right - crop_left, crop_bottom - crop_top);
canvasCtx.stroke();
if (!Array.from(document.getElementById("modeSelector").classList).includes('right')) {
canvasCtx.fillStyle = "#ffffff"
canvasCtx.fill()
}
} else {
canvasCtx.beginPath();
canvasCtx.rect(crop_left, crop_top, crop_right - crop_left, crop_bottom - crop_top);
canvasCtx.stroke();
}
}
/* for (const landmarks of results.multiHandLandmarks) {
drawConnectors(canvasCtx, landmarks, HAND_CONNECTIONS, {
color: "#00FF00",
lineWidth: 5
});
drawLandmarks(canvasCtx, landmarks, { color: "#FF0000", lineWidth: 2 });
}*/
// console.log(results)
const landmarks = results.landmarks;
if (landmarks[0]) {
var hand = landmarks[0]
const zValues = hand.map(node => node.z);
const maxZ = Math.max.apply(null, zValues)
const minZ = Math.min.apply(null, zValues)
const zRange = maxZ - minZ
hand.forEach(node => {
node.z = ((node.z - minZ) / zRange) * 255
});
// Thumb connections
drawConnection(hand[4], hand[3], 'rgb(0, 0, 255)', 5); // 4-3 (was red)
drawConnection(hand[3], hand[2], 'rgb(0, 0, 255)', 5); // 3-2 (was red)
drawConnection(hand[2], hand[1], 'rgb(0, 0, 255)', 5); // 2-1 (was red)
// Index connections
drawConnection(hand[8], hand[7], 'rgb(0, 255, 0)', 5); // 8-7
drawConnection(hand[7], hand[6], 'rgb(0, 255, 0)', 5); // 7-6
drawConnection(hand[6], hand[5], 'rgb(0, 255, 0)', 5); // 6-5
// Middle connections
drawConnection(hand[12], hand[11], 'rgb(255, 0, 0)', 5); // 12-11 (was blue)
drawConnection(hand[11], hand[10], 'rgb(255, 0, 0)', 5); // 11-10 (was blue)
drawConnection(hand[10], hand[9], 'rgb(255, 0, 0)', 5); // 10-9 (was blue)
// Ring connections
drawConnection(hand[16], hand[15], 'rgb(0, 255, 255)', 5); // 16-15 (was yellow)
drawConnection(hand[15], hand[14], 'rgb(0, 255, 255)', 5); // 15-14 (was yellow)
drawConnection(hand[14], hand[13], 'rgb(0, 255, 255)', 5); // 14-13 (was yellow)
// Pinky connections
drawConnection(hand[20], hand[19], 'rgb(255, 0, 255)', 5); // 20-19
drawConnection(hand[19], hand[18], 'rgb(255, 0, 255)', 5); // 19-18
drawConnection(hand[18], hand[17], 'rgb(255, 0, 255)', 5); // 18-17
drawConnection(hand[0], hand[1], 'rgb(200, 200, 200)', 5); // 0-1
drawConnection(hand[0], hand[5], 'rgb(200, 200, 200)', 5); // 0-5
drawConnection(hand[0], hand[17], 'rgb(200, 200, 200)', 5); // 0-17
drawConnection(hand[5], hand[9], 'rgb(200, 200, 200)', 5); // 5-9
drawConnection(hand[9], hand[13], 'rgb(200, 200, 200)', 5); // 9-13
drawConnection(hand[13], hand[17], 'rgb(200, 200, 200)', 5); // 13-17
// Thumb
drawLandmarks(canvasCtx, hand[2], '#ffe5b4'); // Thumb tip (2)
drawLandmarks(canvasCtx, hand[3], '#ffe5b4'); // Thumb base (3)
drawLandmarks(canvasCtx, hand[4], '#ffe5b4'); // Thumb base (4)
// Index
drawLandmarks(canvasCtx, hand[6], '#804080'); // Index tip (6)
drawLandmarks(canvasCtx, hand[7], '#804080'); // Index base (7)
drawLandmarks(canvasCtx, hand[8], '#804080'); // Index base (8)
// Middle
drawLandmarks(canvasCtx, hand[10], '#ffcc00'); // Middle tip (10)
drawLandmarks(canvasCtx, hand[11], '#ffcc00'); // Middle base (11)
drawLandmarks(canvasCtx, hand[12], '#ffcc00'); // Middle base (12)
// Ring
drawLandmarks(canvasCtx, hand[14], '#30ff30'); // Ring tip (14)
drawLandmarks(canvasCtx, hand[15], '#30ff30'); // Ring base (15)
drawLandmarks(canvasCtx, hand[16], '#30ff30'); // Ring base (16)
// Pinky
drawLandmarks(canvasCtx, hand[18], '#1565c0'); // Pinky tip (18)
drawLandmarks(canvasCtx, hand[19], '#1565c0'); // Pinky base (19)
drawLandmarks(canvasCtx, hand[20], '#1565c0'); // Pinky base (20)
drawLandmarks(canvasCtx, hand[0], '#ff3030'); // Wrist (0)
drawLandmarks(canvasCtx, hand[1], '#ff3030'); // Palm base (1)
drawLandmarks(canvasCtx, hand[5], '#ff3030'); // Index palm (5)
drawLandmarks(canvasCtx, hand[9], '#ff3030'); // Middle palm (9)
drawLandmarks(canvasCtx, hand[13], '#ff3030'); // Ring palm (13)
drawLandmarks(canvasCtx, hand[17], '#ff3030'); // Pinky palm (17)
// Crop Canvas
if (firstA == true) {
cropCanvas(canvasElement, crop_left, crop_top, crop_right - crop_left, crop_bottom - crop_top)
}
}
// Add more drawing calls for each landmark collection as needed
//# sourceURL=pen.js
}
function iterate(x, y) {
x_array.push(x.x)
y_array.push(x.y)
}
const cropCanvas = (sourceCanvas, left, top, width, height) => {
let destCanvas = document.createElement('canvas');
destCanvas.width = 224;
var cropAspectRatio = width / height;
destCanvas.height = 224 / cropAspectRatio
destCanvas.getContext("2d").drawImage(
sourceCanvas,
left, top, width, height, // source rect with content to crop
0, 0, 224, destCanvas.height); // newCanvas, same size as source
var predictionInput = tf.browser.fromPixels(destCanvas.getContext("2d").getImageData(0, 0, 224, 224))
predict(tf.expandDims(predictionInput, 0));
}
function getNaturalLength(letter) {
console.log('i got', letter, word_list[word_list.length - 1])
if (document.getElementById("natInp").checked) {
console.log('naturally:')
if (letter != word_list[word_list.length - 1]) {
return ((inputFrequency()) * (1 / (maxPercentage / 100)))
} else {
console.log("penalty!")
var rb = Number(repeatBuffer())
return ((inputFrequency()*(80/100))+400)
}
} else {
console.log('stably:')
if (letter != word_list[word_list.length - 1]) {
return ((inputFrequency()))
} else {
console.log("penalty!")
var rb = Number(repeatBuffer())
return ((inputFrequency()*(80/100))+rb)
}
}
}
function mapLogitsToPercentage(logits) {
// Apply ceiling of 260
const cappedLogits = logits.map(value => Math.min(value, 260));
// Map the values from 0-260 to 0-100
const mappedPercentages = cappedLogits.map(value => (value / 260) * 100);
return mappedPercentages;
}
async function predict(inputTensor) {
console.log(index_list[0])
objectDetector.then(function (res) {
var prediction = res.predict(inputTensor);
var outputArray = prediction.dataSync(); // Get the output as an array
var percentages = mapLogitsToPercentage(outputArray)
maxPercentage = Math.max(...percentages)
document.getElementById('predicted_result').style.opacity = (maxPercentage+30)+'%'
var predictedClass = percentages.indexOf(Math.max(...percentages)); // Get the index
var current_result = index_list[predictedClass]
global_cres = current_result
var previous_result = document.getElementById("predicted_result").innerText
document.getElementById("predicted_result").innerText = current_result
var current_time = Math.round(Date.now())
if (index_list[0] == " Good") {
previous_result = " " + previous_result
}
console.log("p:", previous_result, "c:", current_result)
if (previous_result == current_result) {
if (current_time - last_letter_time > getNaturalLength(current_result)) {
last_letter_time = current_time
word_list.push(current_result)
triggerPulse()
console.log(word_list)
document.getElementById("text").value = word_list.join('')
}
}
else {
last_letter_time = current_time
}
console.log(index_list[predictedClass]);
}, function (err) {
console.log(err);
});
}
function drawLandmarks(canvasCtx, landmarks, color) {
var image_height = (video.videoHeight / video.videoWidth) * canvasElement.width
var image_width = canvasElement.width
canvasCtx.fillStyle = `rgb(${landmarks.z},${landmarks.z},${landmarks.z})`;
canvasCtx.beginPath();
canvasCtx.arc(landmarks.x * image_width, landmarks.y * image_height, 8, 0, 2 * Math.PI);
canvasCtx.fill();
}
function drawConnection(startNode, endNode, strokeColor, strokeWidth) {
var image_height = (video.videoHeight / video.videoWidth) * canvasElement.width
var image_width = canvasElement.width
canvasCtx.strokeStyle = strokeColor;
canvasCtx.lineWidth = strokeWidth - 1;
canvasCtx.beginPath();
canvasCtx.moveTo(startNode.x * image_width, startNode.y * image_height);
canvasCtx.lineTo(endNode.x * image_width, endNode.y * image_height);
canvasCtx.stroke();
}
function calculateCanvasBrightness(canvas) {
const context = canvas.getContext('2d', { willReadFrequently: true });
// Get the image data from the canvas
const imageData = context.getImageData(0, 0, canvas.width, canvas.height);
const data = imageData.data;
let totalBrightness = 0;
let pixelCount = 0;
// Loop through each pixel
for (let i = 0; i < data.length; i += 4) {
const r = data[i]; // Red
const g = data[i + 1]; // Green
const b = data[i + 2]; // Blue
// Calculate brightness for this pixel
const brightness = 0.299 * r + 0.587 * g + 0.114 * b;
totalBrightness += brightness;
pixelCount++;
}
// Calculate average brightness
const averageBrightness = totalBrightness / pixelCount;
return averageBrightness;
}
function triggerPulse() {
console.log('did nothing')
/* Apply after working on pulse css more
const resultWrapper = document.querySelector('.wrapper_result');
resultWrapper.classList.add('pulse');
// Remove the class after the animation ends to allow it to be triggered again
resultWrapper.addEventListener('animationend', () => {
resultWrapper.classList.remove('pulse');
}, { once: true });*/
}
</script>
</body>
</html>
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