A Novel Scheme for Compression of Cash Images

作     者：Li Li Feng Wang Jian-Feng Lu Da-Xing Zhang 

作者机构：with the Department of Computer Science Hangzhou Dianzi University 

出 版 物：《Journal of Electronic Science and Technology》 (电子科技学刊（英文版）)

年 卷 期：2011年第9卷第4期

页      面：301-305页

学科分类：0810[工学-信息与通信工程] 08[工学] 080203[工学-机械设计及理论] 081001[工学-通信与信息系统] 0802[工学-机械工程] 

基　　金：supported by the National Natural Science Foundation of China under Grant No. 60703087 the Project of Science and Technology Department of Zhejiang Province under Grant No. 2010C31006 and No. 2011C21081 

主　　题：Compression ratio correlation joint photographic experts group preproeess quantization table re-ordering. 

摘      要：In the field of economy, there are more and more electronic scanning cash images, which need to be compressed in a higher compression ratio. This paper proposes a specific compression algorithm for cash images. First, according to cash image characteristics and standard JPEG （joint photographic experts group） compression, image re-ordering techniques are analyzed, and the method of modifying some blocks into single color blocks is adopted. Then, a suitable quantization table for cash images is obtained. Experimental results show that the method is effective.