Pixel Reader

By Bobby on Thu, 1 Jan 2009 07:38:29 +0000

This flash movie reads pixels from an image dynamically, using Flash's new Pixel read/write capabilities. MouseOver the image to change the selected color. Click the image to convert back and forth between color and greyscale.

Demo

Implementation

Flash 8 introduces methods for reading and writing pixels on a bitmap:

bmp.getPixel(_x, _y);
bmp.setPixel(_x, _y, _color);

For generating the GreyScale version of a color image, set each pixel's color to its RGB average, that is: R = (R + G + B)/3 G = (R + G + B)/3 B = (R + G + B)/3

The Pixel Reader article by Bobby Soares, unless otherwise expressly stated, is licensed under a Attribution-Noncommercial-Share Alike 3.0 United States License.

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