摘要
为了探讨基于小波变换的图像压缩方法,结合SPIHT算法,提出了图像压缩编码方案,该方案不仅能有效地控制计算量,满足实时处理的需求,而且可以方便地实现子频带编码.通过为典型的512×512×8的灰度图像进行仿真,结果表明,压缩后得到图像峰值信噪比为32.14 dB.
For discussing image compression on wavelet transform theory, the anthors combine with SPIHT's algorithm, and put forward image compression coding project. This algorithm can control the quantity effectively, meet the needs of disposal instantly, and fulfill the subordinate band, simutating the 512×512×8 gray image, and geting the result that the image's PSNR is 32.14 dB.
出处
《哈尔滨理工大学学报》
CAS
2004年第3期34-37,共4页
Journal of Harbin University of Science and Technology
关键词
图像压缩
小波变换
小波基
零树编码
image compression
wavelet transform
wavelet -based
zero tree coding
