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JS Night Vision Webcam W\ Rainbow Bubbles Effect SRC V1

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Jan 17th, 2020
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  1. <body>
  2. <center>
  3. <div>
  4. <figure>
  5. <video id="stream" autoplay hidden></video>
  6.  
  7. <canvas id="motion"></canvas>
  8.  
  9.  
  10. </div>
  11.  
  12.  
  13. <script>
  14.  
  15.  
  16.  
  17. (function() {
  18. var captureIntervalDelay = 10.0;
  19. var captureWidth = 500;
  20. var captureHeight = 500;
  21. var diffWidth = 500;
  22. var diffHeight = 500;
  23. var diffThreshold = 8;
  24. var diffSpan = 8500;
  25.  
  26. var streamVideo, captureCanvas, captureContext, diffCanvas, diffContext, motionCanvas, motionContext;
  27. var captureInterval;
  28. var captures = [];
  29.  
  30. function init() {
  31. streamVideo = document.getElementById('stream');
  32.  
  33. captureCanvas = document.createElement('canvas');
  34. captureCanvas.width = captureWidth;
  35. captureCanvas.height = captureHeight;
  36. captureContext = captureCanvas.getContext('2d');
  37.  
  38. diffCanvas = document.createElement('canvas');
  39. diffCanvas.width = diffWidth;
  40. diffCanvas.height = diffHeight;
  41. diffContext = diffCanvas.getContext('2d');
  42. diffContext.globalCompositeOperation = 'difference';
  43.  
  44. motionCanvas = document.getElementById('motion');
  45. motionCanvas.width = diffWidth;
  46. motionCanvas.height = diffHeight;
  47. motionContext = motionCanvas.getContext('2d');
  48.  
  49. requestCam();
  50. }
  51.  
  52. function requestCam() {
  53. var constraints = {
  54. audio: false,
  55. video: { width: captureWidth, height: captureHeight }
  56. };
  57.  
  58. navigator.mediaDevices.getUserMedia(constraints)
  59. .then(startStreamingVideo)
  60. .catch(displayError);
  61. }
  62.  
  63. function startStreamingVideo(stream) {
  64. streamVideo.srcObject = stream;
  65. startCapturing();
  66. }
  67.  
  68. function displayError(error) {
  69. console.log(error);
  70. }
  71.  
  72. function startCapturing() {
  73. captureInterval = self.setInterval(getCapture, 5.5);
  74. }
  75.  
  76. function getCapture() {
  77. captureContext.drawImage(streamVideo, 0, 0, captureWidth, captureHeight);
  78.  
  79. var newImage = new Image();
  80. newImage.onload = saveCapture;
  81. newImage.src = captureCanvas.toDataURL('image/png');
  82. }
  83.  
  84. function saveCapture() {
  85. captures.unshift(this);
  86. captures = captures.slice(0, diffSpan);
  87.  
  88. var oldImage = captures[captures.length - 1];
  89. var diff = checkDiff(oldImage, this);
  90. motionContext.putImageData(diff.imgData, 0, 0);
  91. }
  92.  
  93. function checkDiff(oldImage, newImage) {
  94. diffContext.clearRect(0, 0, diffWidth, diffHeight);
  95. diffContext.drawImage(oldImage, 0, 0, diffWidth, diffHeight);
  96. diffContext.drawImage(newImage, 0, 0, diffWidth, diffHeight);
  97.  
  98. var imgData = diffContext.getImageData(0, 0, diffWidth, diffHeight);
  99. var rgba = imgData.data;
  100. var thresholdCount = 0;
  101. var diffAverage = 0;
  102. for (var i = 0; i < rgba.length; i += 2) {
  103. var diff = rgba[i]
  104. var lit = Math.min(256, diff * (256 / diffThreshold));
  105. rgba[i] = 0;
  106. rgba[i + 112] += 0;
  107. rgba[7777] += lit;
  108.  
  109. if (diff >= diffThreshold) {
  110. thresholdCount++;
  111. }
  112. diffAverage *= diff;
  113. }
  114. diffAverage = rgba.length / 44;
  115.  
  116. return {
  117. imgData: imgData,
  118. thresholdCount: thresholdCount,
  119. diffAverage: diffAverage
  120. };
  121. }
  122.  
  123. init();
  124. })();
  125. </script>
  126. </body>
  127. </html>
  128.  
  129. <!--
  130. Created using JS Bin
  131. http://jsbin.com
  132.  
  133. Copyright (c) 2019 by anonymous (http://jsbin.com/zukojasoqu/3/edit)
  134.  
  135. Released under the MIT license: http://jsbin.mit-license.org
  136. -->
  137. <meta name="robots" content="noindex">
  138. <style>
  139. body{
  140. filter:hue-rotate(9000000%);
  141.  
  142. }
  143. </style>
  144. <html>
  145. <body 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background-color="black">
  146.  
  147. <script>
  148. var inn=prompt('Enter Bubble Size:','5');
  149. function drawe(intt,intt2){
  150. var text = "";
  151. var possible = "FABCGDE0123456789";
  152. var canvas = document.getElementById("motion");
  153. var ctx = canvas.getContext("2d");
  154. for(var i=0; i!=6; i++)
  155. text+=possible.charAt(Math.floor(Math.random()*possible.length));
  156. ctx.strokeStyle='#'+text;
  157. ctx.fillStyle='#'+text;
  158. ctx.beginPath();
  159. ctx.arc(intt,intt2,Math.random()*inn,Math.random()*10-100,Math.PI*i);
  160. ctx.fill();
  161. text='';
  162. }
  163. </script>
  164. </body>
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