-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathindex.html
283 lines (245 loc) · 10.7 KB
/
index.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
<!DOCTYPE html>
<!--
Author: Fazli Bin Mansor
Email: [email protected]
Date Created: 18 November 2023
In memory of Herman Yunos
-->
<html>
<head>
<meta name="viewport" content="width=device-width, height=device-height, initial-scale=1">
<meta charset="utf-8">
<title>Herman Blink-to-Text Web Application</title>
<script src="https://docs.opencv.org/3.4.0/opencv.js" type="text/javascript"></script>
<script src="https://docs.opencv.org/3.4.0/utils.js" type="text/javascript"></script>
<style>
body{font-family:Arial;min-width:400px;}
#videoOutput{margin:0px auto;width:400px;}
#outputtext{width:100%;padding:20px;background:#fc3}
#currenttext{display:block;text-align:center;width:inherit;margin:0px auto;color:#000;font-size:30px;}
#currentletter{width:100%;padding:20px 0px;}
#keyboard{display:block;text-align:center;width:400px;margin:0px auto;}
#instructions{font-size:16px;}
#errormsg{font-size:16px;color:red;}
.key{vertical-align:middle;display:inline-block;padding:10px 20px;margin:0px 5px; background: #eee;}
.mainkey{color:#000;background:#0ff;font-size:14px;}
.nextkey,.prevkey{color:#aaa;font-size:10px;}
.firstkey,.lastkey{color:#ccc;font-size: 8px;}
</style>
</head>
<body>
<div id="outputtext"><div id="currenttext"></div></div>
<div id="currentletter"></div>
<div id="videoOutput">
<video id="videoInput" width=400 height=300 style="border:1px solid black;display:none;" playsinline></video>
<canvas id="canvasOutput" width=400 height=300 style="border:1px solid black"></canvas>
</div>
<script type="text/javascript">
const FPS = 15;
const fraction = 5;
const BlinkTime = FPS/fraction; // Fraction of 1 sec
let ab = ['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z','1','2','3','4','5','6','7','8','9','0','.',',','Space','Next Line','Delete','Clear'];
let ablist = new Array(5);
let utils = new Utils('errorMessage');
let faceCascadeFile = 'haarcascade_frontalface_alt.xml';
utils.createFileFromUrl(faceCascadeFile, faceCascadeFile, () => {
console.log('face cascade ready to load.');
});
let eyeCascadeFile = 'haarcascade_eye_tree_eyeglasses.xml';
utils.createFileFromUrl(eyeCascadeFile, eyeCascadeFile, () => {
console.log('eye cascade ready to load.');
});
let currentword = "";
let outputtext = document.getElementById('currenttext');
let instructions = '<span id="instructions">Instructions: Blink eyes to scroll through Keys. Close eyes for 1/'+fraction+' sec to select Key. Wink to Delete.</span>';
outputtext.innerHTML = instructions;
let keyboardPos = 0;
let leftEyeClosed, rightEyeClosed, bothEyesClosed = false;
let bothEyesClosedTime,leftEyeClosedTime,rightEyeClosedTime = 0;
let video = document.getElementById('videoInput');
let canvas = document.getElementById('canvasOutput');
let context = canvas.getContext('2d',{ willReadFrequently: true });
setKeyboard(keyboardPos);
displayKeyboard('currentletter');
function setKeyboard(kbP){
if(kbP >= ab.length || kbP < 0) kbP = 0; //error input
ablist[0] = ab[((kbP == 0)?ab.length-2:((kbP == 1)?ab.length-1:kbP - 2))];
ablist[1] = ab[((kbP == 0)?ab.length-1:kbP - 1)];
ablist[2] = ab[kbP];
ablist[3] = ab[((kbP == ab.length-1)?0:kbP + 1)];
ablist[4] = ab[((kbP == ab.length-2)?0:((kbP == ab.length-1)?1:kbP + 2))];
}
function displayKeyboard(divID){
key = document.getElementById(divID);
key.innerHTML = "<div id='keyboard'><span class='key firstkey'>"+ablist[0]+"</span><span class='key prevkey'>"+ablist[1]+"</span><span class='key mainkey'>"+ablist[2]+"</span><span class='key nextkey'>"+ablist[3]+"</span><span class='key lastkey'>"+ablist[4]+"</span></div>";
}
function drawEllipse(context, centerX, centerY, radiusX, radiusY) {
context.beginPath();
context.ellipse(centerX, centerY, radiusX, radiusY, 0, 0, 2 * Math.PI);
context.stroke();
}
navigator.mediaDevices.getUserMedia({ video: true, audio: false })
.then(function(stream) {
video.srcObject = stream;
video.play();
})
.catch(function(err) {
outputtext.innerHTML = "<span id='errormsg'>Unable to get Camera Output. Please check input.</span>";
console.log("An error occurred! " + err);
});
video.addEventListener("playing", () => {
src = new cv.Mat(video.height, video.width, cv.CV_8UC4);
dst = new cv.Mat(video.height, video.width, cv.CV_8UC1);
cap = new cv.VideoCapture(video);
face_cascade = new cv.CascadeClassifier();
if(!face_cascade.load(faceCascadeFile)) console.log("Failed to Load Face Cascade");
else console.log("Loaded Face Cascade");
eye_cascade = new cv.CascadeClassifier();
if(!eye_cascade.load(eyeCascadeFile)) console.log("Failed to Load Eye Cascade");
else console.log("Loaded Eye Cascade");
// schedule the first one.
setTimeout(processVideo, 0);
});
function processVideo(){
try {
let begin = Date.now();
cap.read(src);
cv.cvtColor(src, dst, cv.COLOR_RGBA2GRAY,0);
let msize = new cv.Size(0,0);
faces = new cv.RectVector();
if(!face_cascade.detectMultiScale(dst, faces, 1.1, 3, 0, msize, msize)) console.log("Face Not Detected");
else console.log("Face Detected");
console.log("Faces:" + faces.size());
if (faces.size() > 0) {
//Draw Face Detection
let i=0;//choose the first face, left and right eye
let roiDst = src.roi(faces.get(i));
let point1 = new cv.Point(faces.get(i).x, faces.get(i).y);
let point2 = new cv.Point(faces.get(i).x + faces.get(i).width,faces.get(i).y + faces.get(i).height);
cv.rectangle(src, point1, point2, [255, 0, 0, 255]);
let roi_Left = new cv.Mat();
let roi_Right = new cv.Mat();
// detect eyes in face ROI
eyeLeft = new cv.Rect(faces.get(i).x, faces.get(i).y, (faces.get(i).width/2), faces.get(i).height);
roi_Left = src.roi(eyeLeft);
eyeRight = new cv.Rect(faces.get(i).x+(faces.get(i).width/2), faces.get(i).y, (faces.get(i).width/2), faces.get(i).height);
roi_Right = src.roi(eyeRight);
leftEyes = new cv.RectVector();
rightEyes = new cv.RectVector();
eye_cascade.detectMultiScale(roi_Left,leftEyes,1.2);
if(leftEyes.size() > 0){
let pointLeft1 = new cv.Point(faces.get(i).x + leftEyes.get(i).x, faces.get(i).y + leftEyes.get(i).y);
let pointLeft2 = new cv.Point(faces.get(i).x + leftEyes.get(i).x + leftEyes.get(i).width, faces.get(i).y + leftEyes.get(i).y + leftEyes.get(i).height);
cv.rectangle(src, pointLeft1, pointLeft2, [0, 255, 0, 255]);
}
eye_cascade.detectMultiScale(roi_Right,rightEyes,1.2);
if(rightEyes.size() > 0){
let pointRight1 = new cv.Point(faces.get(i).x + (faces.get(i).width/2) + rightEyes.get(i).x, faces.get(i).y + rightEyes.get(i).y);
let pointRight2 = new cv.Point(faces.get(i).x + (faces.get(i).width/2) + rightEyes.get(i).x + rightEyes.get(i).width, faces.get(i).y + rightEyes.get(i).y + rightEyes.get(i).height);
cv.rectangle(src, pointRight1, pointRight2, [0, 255, 0, 255]);
}
if (leftEyes.size() > 0) {
console.log("Left Eye Open");
leftEyeClosed = false;
}
else{
console.log("Left Eye Closed");
leftEyeClosed = true;
leftEyeClosedTime++;
}
if (rightEyes.size() > 0) {
console.log("Right Eye Open");
rightEyeClosed = false;
}
else{
console.log("Right Eye Closed");
rightEyeClosed = true;
rightEyeClosedTime++;
}
if(leftEyeClosed && rightEyeClosed){ // both eyes closed
//scroll through keyboard
bothEyesClosed = true;
bothEyesClosedTime++;
}
else if((leftEyeClosed || rightEyeClosed) && !(leftEyeClosed && rightEyeClosed)){ // one eye closed
bothEyesClosed = false;
bothEyesClosedTime = 0;
}
else{
if(bothEyesClosed){
if(bothEyesClosedTime >= BlinkTime){
//select current key
if(ab[keyboardPos] == "Delete"){
//remove letter
currentword = currentword.slice(0, -1);
if(currentword=="")
outputtext.innerHTML = instructions;
else
outputtext.innerHTML = currentword;
console.log("Delete");
}
else if(ab[keyboardPos] == "Clear"){
//clear whole word
currentword = "";
outputtext.innerHTML = instructions;
console.log("Clear");
}
else if(ab[keyboardPos] == "Space"){
currentword += " ";
outputtext.innerHTML = currentword;
console.log("Space");
}
else if(ab[keyboardPos] == "Next Line"){
currentword += "<br>";
outputtext.innerHTML = currentword;
console.log("Next Line");
}
else{
//add letter to box
currentword += ab[keyboardPos];
outputtext.innerHTML = currentword;
console.log(ab[keyboardPos]);
}
}
else keyboardPos++;
}
else if(rightEyeClosedTime >= BlinkTime){
currentword = currentword.slice(0, -1);
if(currentword=="")
outputtext.innerHTML = instructions;
else
outputtext.innerHTML = currentword;
rightEyeClosedTime = 0;
}
else if(leftEyeClosedTime >= BlinkTime){
currentword = currentword.slice(0, -1);
if(currentword=="")
outputtext.innerHTML = instructions;
else
outputtext.innerHTML = currentword;
leftEyeClosedTime = 0;
}
rightEyeClosedTime = leftEyeClosedTime = bothEyesClosedTime = 0;
rightEyeClosed = leftEyeClosed = bothEyesClosed = false;
if(keyboardPos < 0) keyboardPos = ab.length-1;
if(keyboardPos >= ab.length) keyboardPos = 0;
setKeyboard(keyboardPos);
displayKeyboard('currentletter');
}
roiDst.delete();
roi_Left.delete();
roi_Right.delete();
}
//draw ellipse to fit face
cv.imshow('canvasOutput',src);
drawEllipse(context,200,150,100,120);
let delay = 1000/FPS - (Date.now() - begin);
setTimeout(processVideo, delay);
} catch (err) {
outputtext.innerHTML = "<span id='errormsg'>Failed to initialize AI Engine. Refresh to reload.</span>";
console.log(err);
}
}
</script>
</body>
</html>