基于注意力集中机制的图像压缩算法

An Algorithm for Image Compression with Selective Focusing

在已有小波压缩技术的基础上 ,充分利用人类视觉具有注意力集中机制的特性 ,提出了加权小波系数的改进方法 ,对某些人类视觉敏感区域实现可变压缩比 ,取得较满意的结果 .在图像压缩比相似的情况下 ,主观图像质量取得明显改善 .实验证明 ,该算法易于解决经典方法较难解决的压缩问题 .

A simple weighted focusing technique is proposed for image compression. It enables us to single out the Region of Interesting (ROI) and obtain variable compression rate over an image. With the same compression rate, the compressed image is better under the subjective criteria. The experimental results show that the proposed algorithm is easily implemented and suitable to problems which are difficult to be solved by traditional compression techniques.