In MPEG Layer III coding the compression gain is mainly achieved through the unequal distribution of energy in the different frequency bands, the use of the psychoacoustic model, and Huffman coding.

The Layer II coder provides a higher compression rate by making some relatively minor modifications to the Layer I coding scheme. These modifications include how the samples are grouped together, the ...

A Python application for viewing and compressing BMP images with a graphical user interface. The viewer supports multiple BMP formats and includes lossless compression using Huffman coding algorithm.