摘要：
通过程序设计实现了基于整数DCT的无损压缩算法，适用于遥感图像压缩。该算法对遥感图像进行整数DCT无损变换，用算术编码对变换系数进行了压缩。测试结果证明，相比于现有的基于DCT的无损压缩算法，压缩率有了一定的降低，对于遥感图像的压缩效果要好于普通无损压缩算法，可以在同一个系统中同时实现图像的无损/有损压缩，有一定的实用价值。
关键词:
无损压缩,
整数DCT,
算术编码,
压缩率
Abstract: The article proposes a lossless compression method for still radar image based on binDCT transformation. IntDCT is used to achieve an integer to integer transformation for image. A series of coefficients are sent to arithmetic encoder. The experimental results show the proposed algorithm improves the performance of losslessness/ lossness compression for radar images.
Key words:
Lossless compression,
BinDCT,
Arithmetic encoder,
Compressibility
中图分类号:
朱曼洁;赵 岭. 基于可逆整数DCT的遥感图像的无损压缩[J]. 计算机工程, 2006, 32(21): 273-274,.
ZHU Manjie; ZHAO Ling. Compression Algorithm Based on IntDCT Transformation[J]. Computer Engineering, 2006, 32(21): 273-274,.