A good documentation for lossy compression and scalar quantization.
Being a subset of vector quantization, scalar quantization deals with quantizing a string of symbols (random variables) by addressing one symbol at a time (as opposed to the entire string of symbols.)
A set of slides for vector quantization overview.
A web page that talks about vector quantization.
An excellent article Image Compression - from DCT to Wavelets : a Review
A graphics-based demonstration of the wavelet transform.
There are two programs included, one to demonstrate the 1D wavelet transform and the other for 2D image compression. In the 1D program, one simply draws the curve that is to be transformed.
