Image Bitplane Coding Based on Combination of Subband Quadtrees
Xingyun Ding · 2006
Image can be encoded effectively by using the spatial distribution characteristic of wavelet coefficients.In order to make full use of the intraband correlation and interband correlation of wavelet coefficients,an effective image coding algorithm is proposed.In the algorithm,subband quadtrees are combined to a scanning tree,and then bitplanes are encoded with the information provided by the scanning tree.The algorithm has better coding performance than EZW and SPIHT for it effectively encodes the image areas which are rich in texture.In addition,the algorithm is also characterized by features of easy realization,fast execution and little memory consumption.So it reduces the difficulty of hardware realization and has good practicability.