Beej's Bit Bucket

Your pixels will be manipulated.

In an earlier post, I wrote about a few of the things HTML5‘s <canvas> element could do. This post is about one more of them: direct pixel manipulation. You can basically do the three following things:

1. Create an array of empty pixels, or
2. Get an array of pixels from an existing canvas, or
3. Set the pixels of a canvas from a pixel array

Read more…