On the coding performances of DCT based subband decomposition for low contrast images

被引：0
作者：
BenoitCattin, H
Prost, R
Baskurt, A
机构：
来源：
INTERNATIONAL CONFERENCE ON IMAGE PROCESSING - PROCEEDINGS, VOL II | 1997年
关键词：
D O I：
10.1109/ICIP.1997.638847
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this study, we consider the DCT based subband decomposition and show the efficiency of this approach for low contrast images in comparison to 9-7 bi-orthogonal FIR filters [5] generally used in such a scheme. First, we consider the theoretical coding gain for the two approaches. Afterwards, the distortion versus rate performances are analyzed and the perceptual qualities of the reconstructed images are discussed. Finally, an edge detection operator is applied on the reconstructed images in order to show the robustness of DCT based subband decomposition to post-processing.
引用
收藏
页码：617 / 620
页数：4
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