Open AccessAN APPROACH TO IMAGE COMPRESSION AND ENCRYPTION
Author(s) -
Abdul Razzaque,
Nileshsingh V. Thakur
Publication year - 2012
Publication title -
international journal of image processing and vision sciences
Language(s) - English
Resource type - Journals
ISSN - 2278-1110
DOI - 10.47893/ijipvs.2012.1027
Subject(s) - lossy compression , lossless compression , encryption , image compression , computer science , probabilistic encryption , theoretical computer science , computer vision , multiple encryption , image (mathematics) , data compression , artificial intelligence , computer security , image processing
Image compression scheme proposed by researchers have no consideration of security. Similarly image encryption scheme proposed by the authors have no consideration of image size. In this paper a simultaneous image compression and encryption scheme is discussed. The order of the two processes viz. compression and encryption is EC i.e. image encryption is performed first then the image compression is applied. For image encryption a symmetric key cryptography multiplicative cipher is used. Similarly for compression Discrete Cosine Transform is used. Image Compression is concerned with minimizing the number of bit required to represent an image. The compression can be lossless or lossy. Image Encryption is hiding image from unauthorized access with the help of secret key that key can be private or public.