A Deblocking Algorithm Using Anisotropic Diffusion Based on HVS
Xie Sheng-li · Jisuanji gongcheng · 2006
The block-based discrete cosine transform(BDCT) is a main compression technique in most of the international standards for image and video compression.One of the major drawbacks in BDCT is the blocking artifacts at low bit rates.In this paper,a coefficient model of the anisotropic diffusion based on the characteristic of human visual system(HVS) is proposed and a diffusion speed parameter is employed.The experiment results show that the proposed algorithm reduces the blocking artifacts effectively and preserves the original edges faithfully.