一种新的无损图像压缩算法的研究

提出了新的二进制(位级)无损图像压缩方法——将错误纠正BCH码引入到图像压缩算法中;将图像的二进制分为大小为7的码字,这些块进入到BCH解码器,消除了校验位后,使得原来的块的大小减少到4位。实验结果表明,此压缩算法是有效的,并给出了一个很好的压缩比,而且不丢失数据。BCH码的使用在提高压缩比方面比单纯霍夫曼压缩的结果要好。

A new lossless image compression algorithm

A new binary（class） lossless image compression algorithm,which is combine with error correcting BCH code,is introduced in this paper.The binary of the image is divided into code words of size 7.These blocks are input into the BCH decoder,which eliminates a parity bit and makes the block size decrease to 4.The experiments show that the compression algorithm is effective,and gives a good compression ratio,but without loss of data.Using BCH codes is better than using only Huffman compression algorithm when talking about improving compression ratio.