Simple Application for detect whether your image is black and white or colorful.
AndroidRandomColor library allows to generate random colors on Android.
A type-safe interface of image processing algorithms.
Alexei has some predefined image processing calculus that are accessible from the class ImageProcessingThing:
Luminous intensity calculator to check if a color is bright or dark.
iTunes 11-style color matching code for Android.
A beautiful set of predefined colors and a set of color methods to make your Android development life easier.