摘要
压缩倍数较高的DCT变换编码会引起图像块效应．本文设计了一种可平滑块效应而又能保护图像细节的解码器。它采用像素交换平滑、变换域约束方法。实验表明，输出图像质量有明显提高。
In this paper a decoder is designed to reduce blocking effect of block discrete cosin transform compressed images.Interpolation method using pixel's exchanges is used to simplify smoothness process.A constraint set is defined to correct the smoothness error.Experimental results are presented are presented that demonstrate this decoder can drastically reduce the blocking effect and improve the subjective quality of compressed images.
出处
《信号处理》
CSCD
北大核心
1995年第4期252-255,共4页
Journal of Signal Processing
基金
国家自然科学基金
中科院模式识别实验室基金
关键词
图像处理
图像编码
解码器
设计
Image processing, Image coding, Decorder, Block effect
