Wavelet compression

Wavelet compression is a type of (usually lossy) data compression used in some image and video formats.

Related formats
Formats that use wavelet compression include:
 * Corel Wavelet
 * ECW
 * Elecard Wavelet Image
 * ICER
 * Indeo
 * IWC (WaveL)
 * J Wavelet Image Codec
 * JPEG 2000
 * Lightning Strike
 * LuraWave
 * MrSID
 * PGF (Progressive Graphics File)
 * WLM (also known as CompW)
 * WSQ

Links
Wikipedia: Wavelet transform