JavaScript Image Processing Library: Pixastic

Pixastic is an open source JavaScript image processing library.
It uses HTML5 Canvas element that enables accessing to raw pixel data.

Supported effects are:

• desaturation/greyscale
• invert
• flipping
• brightness/contrast adjustment
• hue/saturation
• emboss
• blur & more

There is an image editor built with it & the library is well-documented.

Requirements: No Requirements
Compatibility: All Major Browsers (IE requires ExCanvas)
Website: http://www.pixastic.com/
Download: http://www.pixastic.com/lib/download/