Optimized Coding Methods of the Rectangular Non-Symmetry and Anti-packing Model for Gray Images

Inspired by the idea of rectangular optimized coding scheme for binary images, this paper proposes three optimized coding methods aimed at gray image compression using the rectangular non-symmetry and anti-packing model (RNAMC). The adaptive arithmetic encoding and the adjacent position correlation encoding based on column bisections are used to improve representation efficiency of gray images. The experimental results show the effectiveness of the three optimized coding methods proposed in this paper. These methods can improve the compression ratio in the RNAMC algorithm and have a good application prospect in some commercial applications related to image processing, such as reducing storage space, increasing processing speed, and improving pattern matching efficiency.