基于TMS320C5409图像压缩系统的实现  

Realization of Image Compression System Based on TMS320C5409

作　　者：程林[1] 徐晔[1] 郑正奇[1] 

机构地区：[1]华东师范大学信息学院电子系

出　　处：《微型电脑应用》2006年第10期14-17,65,共4页Microcomputer Applications

摘　　要：该文基于DSP芯片的特点和JPEG图像压缩的原理,重点描述了一个基于TMS320VC5409DSP芯片的图像压缩系统。其中对传统的JPEG算法的DCT变换和量化过程作了一些改进,使本系统压缩速度更快,在压缩率相同的情况下图像的质量更高。The article, summarizing the attributes of DSP chip and the theory of the image compression, puts an emphasis on describing the image compression system based on TMS320VC5409 DSP chip. Additionally, based on the image compression system, a fast DCT image compression method and an adaptive JPEG quantification way are proposed. The realization and application of the image compression system show that the proposed method runs faster and gets higher quality of image than the standard JPEG compression method at the same compression rate.

关 键 词：DSP 图像压缩 JPEG算法 快速DCT变换 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]