A Novel Algorithm of Digital Image Scrambling and Hiding
Cao Chang-xiu · Jisuanji gongcheng · 2001
A new for scrambling and hiding Image is presented. The is based on the Knight-tour problem. It consists of two stages: computation of the knight-tour matrixes (KTM) and transfornsation of the image scrambling by using KTM. An intelligent searching-intelligent backtracking algorithm is proposed for computing KTM. It overcomes the shortages of the traditional searching-backtracking algorithm and improves the efficiency of computing KTM. Comparison of the new with known techniques for scrambling images shows the advantages of the new approach, both large numbers of secret key and fast encrypting/decrypting. Then the security of image and the information of hiding into it are increased.