CHAOTIC ALGORITHMS USED FOR ENCRYPTION AND DECRYPTION ON MOVING IMAGES
M. Surya Bhupal Rao · 2013
Chaotic algorithm is a well-used method in the real-time secure image transmission systems. Research’s are using this algorithm in encryption and decryption process. Even though it is applicable in many areas there are some disadvantages of security means low security to the sending information (others can easily decrypt the code). Now almost all images are in color space and my project encrypt the color images by considering the each color (R, G and B). In this paper I am going to change the image pixels position by which we can get high security and more difference between the original image and cipher image. Currently this algorithm is only applicable to only still color images but in this paper I am going to develop encryption and decryption process for moving images such as videos by using chaotic algorithm. Finally I am going to compare the histograms also to demonstrate the encryption between the plain image and encrypted image. The main advantage of the paper is we can use longer key space and this process takes very less time. By using this algorithm we are going to encrypt and decrypt the color image. After taking color image we separate the red, green and blue components and after that we are going to confuse the red, green and blue components and we encrypt the image with another gray scale image. In decryption process we are going to undiffused the red, green and blue components and by using histograms we are going to compare the image histograms before encryption and after decryption. Key words: chaotic algorithm, Least significant bit, bigger key space, moving images, encryption and decryption, logistic map. 1.