The tube42 imagelib is a minimal image manipulation library for J2ME phones. It was initially published on my blog in a series of articles about lightweight image processing. Those posts are now found on the wiki:
- Part 1: Basic RGB image manipulation
- Part 2: Image resizing
- Part 3: Performance enhancement and Blackberry code
- Part 4: Image effects
- Part 5: Performance of transparent vs. opaque blit
- Part 6: Updates to the filter and pixel modifiers + 2D filtering support
Currently, the library contains functions for color operations including interpolation, blending and RGB/YCbCr conversion, image operations including resizing, blending, filtering and pixel modifiers and some simple image analysis functions.
You can for example use the imagelib to
- dynamically resize your graphics, depending on the detected screen size
- create a "retro effect" application
- J2ME is slow and so are most J2ME phones. Given that image processing is very CPU intensive, this library is NOT suitable for real-time effects and such.
The source code contains a MIDlet sample project that demonstrates many aspects of the library. The following images were generated by the sample project running on a phone:
