期刊名称：International Journal of Computer Technology and Applications
电子版ISSN：2229-6093
出版年度：2012
卷号：3
期号：2
页码：572-577
出版社：Technopark Publications
摘要：Compressing an image is significantly different than compressing raw binary data. For this different compression algorithm are used to compress images. Discrete wavelet transform has been widely used to compress the image. Wavelet transform are very powerful compared to other transform because its ability to describe any type of signals both in time and frequency domain simultaneously. The proposed schemes investigate the performance evaluation of embedded zero tree and wavelet based compression algorithm- Set Partitioning in Hierarchical Trees (SPHIT) based image compression. The numerical analysis of such algorithms is carried out by measuring Peak Signal to Noise Ratio (PSNR), Compression Ratio (CR).
关键词：Discrete wavelet Transform; embedded zero tree; Image Compression; set partitioning in hierarchical tree
