图象小波分解后,各子图信息对图象恢复的质量有很大的影响。本文结合指纹图象的特点,明确了各个子图在图象恢复中的重要性,并提出了一种适用于纹理图象的压缩方法,在保证较好的图象恢复质量和较大压缩比的情况下,简化了算法,加快了处理速度。 After image wavelet decomposition, the subgraph information has a great influence on the quality of image restoration. In this paper, the characteristics of fingerprints are analyzed, the importance of each subgraph in image restoration is clarified, and a compression method suitable for texture image is proposed. While ensuring good image recovery quality and large compression ratio The case simplifies the algorithm and speeds up the processing.