ABSTRACT
Arithmetic coding is a promising method of lossless compression. Many domestic and foreign scholars have studied it. In the JPEG2000, a new still image compression coding standard, the image data after being transformed by the Wavelet transformation will be processed by the context-based adaptive arithmetic coding. For instance the quantification coefficient’s bit plane. Arithmetic coding is being used in increasingly wide range of the multimedia’s domain.
Compare with others entropy coding methods, arithmetic coding could take better compression results. But its shortcoming is that its algorithm complexity is higher. It can be said. JPEG2000 used a lot of skills in the design of arithmetic coding. After making some specific analysis of the arithmetic coding, this article will describe a MQ-encoder in VHDL language, and make its simulation.
