Summary | Relevance | Rating | Back to Index
Some components, such as the DCT implementation and the encoding of image meta-information (aspect ratio, color space, etc.), are omitted from the standard. The standard allows for multiple images with separate quantization tables and specifies an interchange format. (How is colormap information handled? The article wasn't clear on this.)
Predictive lossy or lossless coding provides the functionality for hierarchical (multiresolution) coding: downsample, interpolate, upsample, predict, difference.