Created
December 14, 2012 15:13
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Generate YUV color !!!
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| <!DOCTYPE html> | |
| <html><body> | |
| <script type="text/javascript"> | |
| (function(){ | |
| function genYUVColor(input){ | |
| var Y,U,V; | |
| var R,G,B; | |
| Y = Math.floor(input / 65536); | |
| U = Math.floor(input % 65536 / 256); | |
| V = Math.floor(input % 256); | |
| document.write('<div>YUV(' + Y + ',' + U + ',' + V + ')</div>'); | |
| R = Math.floor(Y + 1.14 * V); | |
| G = Math.floor(Y - 0.39 * U - 0.58 * V); | |
| B = Math.floor(Y + 2.03 * U); | |
| return 'rgb(' + R + ',' + G + ',' + B + ')'; | |
| } | |
| var i,j,color = 0,div,myColor; | |
| for(i = 0; i < 3; ++i){ | |
| for(j = 0; j < 256; ++j, ++color){ | |
| if(color % 42 == 0,true){ | |
| (function(div){ | |
| div.style.width = '100%'; | |
| div.style.height = '1px'; | |
| myColor = genYUVColor(color); | |
| div.style.background = myColor; | |
| div.style.color = div.style.background; | |
| //div.innerHTML = div.style.color; | |
| document.body.appendChild(div); | |
| document.write('color ' + myColor + ';'); | |
| })(document.createElement('div')); | |
| } | |
| } | |
| } | |
| })(); | |
| </script></body></html> |
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