imagedata-cloned-canvas-in-array.js (246B)
1 onmessage = function(e) { 2 function processPixels(imagedata) { 3 var pixeldata = imagedata.data; 4 for (var i = 0; i < pixeldata.length; i = i+4) { 5 pixeldata[i] = 128; 6 } 7 postMessage(imagedata); 8 } 9 processPixels(e.data[0]); 10 }