期刊名称:Signal & Image Processing : An International Journal (SIPIJ)
印刷版ISSN:2229-3922
电子版ISSN:0976-710X
出版年度:2012
卷号:3
期号:1
页码:67
出版社:Academy & Industry Research Collaboration Center (AIRCC)
摘要:The protection of confidential image data from unauthorized access is an important area of research innetwork communication. This paper presents a high-level security encryption scheme for gray scaleimages. The gray level image is first decomposed into binary images using bit scale decomposition. Eachbinary image is then compressed by selecting a good scanning path that minimizes the total number of bitsneeded to encode the bit sequence along the scanning path using two dimensional run encoding. Thecompressed bit string is then scrambled iteratively using a pseudo-random number generator and finallyencrypted using a bit level permutation OMFLIP. The performance is tested, illustrated and discussed.