Properties of all phase biorthogonal transform matrix and its application in color image compression

被引：0

作者：

Wang, Chengyou ^{[1
]}

Jiang, Baochen ^{[1
]}

Xie, Songzhao ^{[1
]}

机构：

[1] School of Mechanical, Electrical and Information Engineering, Shandong University

来源：

Wang, C. (wangchengyou@sdu.edu.cn) | 1600年 / Binary Information Press, P.O. Box 162, Bethel, CT 06801-0162, United States卷 / 09期

关键词：

All phase biorthogonal transform (APBT); Composite peak signal to noise ratio (CPSNR); Discrete cosine transform (DCT); Image coding; JPEG;

D O I：

10.12733/jcis7086

中图分类号：

学科分类号：

摘要：

In this paper, the properties of the all phase biorthogonal transform (APBT) matrix are deduced based on the concepts of all phase biorthogonal transform. A novel algorithm is presented to compress color image using the all phase Walsh biorthogonal transform (APWBT), the all phase discrete cosine biorthogonal transform (APDCBT) and the all phase inverse discrete cosine biorthogona transform (APIDCBT), instead of the conventional discrete cosine transform (DCT). Compared with the DCT-based JPEG image compression algorithm, we use the all phase biorthogonal transform matrix to reduce inter-pixel redundancy and propose uniform quantization to the APBT coefficients aiming at reducing the computation complexity. Experimental results show that the CPSNR of the proposed algorithm performs close to the DCT and outperforms the DCT at low bit rates especially. © 2013 Binary Information Press.

引用

页码：7227 / 7234

页数：7