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wu sun he jin si wu sun tu xiang ya suo zhong de yan se kong jian bian huan yan jiu
Author(s): 
Pages: 97-99
Year: Issue:  6
Journal: ADVANCED TELEVISION ENGINEERING

Keyword:  无损压缩颜色变换累积误差圆整误差;
Abstract: 通过对RGB、YCrCb和可逆JPEG2000三种颜色空间无损压缩方法进行比较,本文给出了在连续的正向和反向变换周期里,对误差进行圆整,误差不会累积的条件,特别是圆整误差在从RGB>YCrCb>RGB的连续周期中不会累积的条件.附加的两位亮度和色度信息可以更好地帮助完成可逆颜色变换,采用YCrCb表示的图像的压缩性能要稍微优于RGB方法表示,但是比采用JPEG2000可逆颜色空间的性能差.本文也研究了近似无损压缩JPEG_LS在连续的压缩与解压周期的累积误差.
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