Abstract
In this paper, an improved image cryptography method based on lifting wavelet transform, Latin square and wide range Beta chaotic map, is proposed. This scheme tends to encrypt solely the requisite components of the sensitive data in Lifting-Wavelet which is the LL (Low-Low) decomposition. The introduced scheme is composed of different procedures. After the creation of the Latin square S-box, we used the wide range Beta map to generate the random key. The obtained key is applied in the encryption stage. Following the encryption steps, the ciphered images have been tested by a variety of tests including the histogram analysis, differential analysis, and information entropy analysis. Compared with previous schemes, The results are good and provide an efficient technique for partial image encryption and decryption in the theme of secure communication.
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