现代电子技术2011，Vol.34Issue(10)：12-16,5.
图像压缩编码中Walsh变换与DCT变换及其比较
Walsh Transform and DCT Transform in Image Compression Coding
龙清1
作者信息
- 1. 重庆广播电视集团(总台),重庆401147
- 折叠
摘要
Abstract
Image transform is the foundation of image processing and the first step of image compression coding. Because of its good effect in image transform, the DCT transform has been used widely, and has became the most common transform method in image compression coding. By analyzing the DCT transform and Walsh transform, and comparing the MATLAB simulation experiment with PSNR, the results show that the Walsh transform is not inferior to the DCT transform in performance, and in some quantitative level it is superior to the DCT transform. Besides, the Walsh transform is simpler than the DCT in algorithm. It can be used widely in future.关键词
Walsh变换/DCT变换/峰值信噪比/MatlabKey words
Walsh transform / DCT transform / PSNR / Matlab分类
信息技术与安全科学引用本文复制引用
龙清..图像压缩编码中Walsh变换与DCT变换及其比较[J].现代电子技术,2011,34(10):12-16,5.
