Title :
Research of color image lossless compression algorithm based on DWT-YCOCG-SPIHT-CABAC
Author :
Jingli Xue ; Chengjun Xie ; Xiaohong Hu ; Juan Guo
Author_Institution :
Coll. of Comput. Sci. & Technol., Beihua Univ., Jilin, China
Abstract :
In this paper, an optimized algorithm which combines improved SPIHT algorithm and segmented CABAC algorithm is presented to realize color images lossless compression. At the same time, wavelet transform is used to remove spatial redundancy, and YCoCg spectrum transformation is used to effectively remove spectrum redundancy. Experiment results show that the algorithm in this paper can effectively improve image lossless compression ratio, which is 32.62% higher than ZIP lossless compression ratio on average.
Keywords :
discrete wavelet transforms; image coding; image colour analysis; trees (mathematics); CABAC; DWT; SPIHT; YCOCG; YCoCg spectrum transformation; color image lossless compression algorithm; discrete wavelet transform; spatial redundancy; spectrum redundancy; Algorithm design and analysis; Color; Encoding; Image coding; Prediction algorithms; Wavelet transforms; CABAC; Lossless Compression; SPIHT; Spectral Transform; YCOCG;
Conference_Titel :
Mechatronic Science, Electric Engineering and Computer (MEC), 2011 International Conference on
Conference_Location :
Jilin
Print_ISBN :
978-1-61284-719-1
DOI :
10.1109/MEC.2011.6025659
