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In this paper, we prompt a new algothim based on fuzzy entropy thresholding and R weighted mean algorithm for the image encryption and mapping. The image was divided into the upper and lower blocks, making the encryption factor associate with the plain text and the cipher text. The encryption formula was improved which complicated the rela- tionship between the cipher text and the plain text and keys. The experiment is taken to do the comparison for the effect of encryption and mapping before and after using the new algoritm. The experiment results show that improved algorithm has better performance in encryption and mapping for the image and can be widely used in the image encryption engineer- ing.

Research on Image Encryption and Mapping Algorithm Based on Fuzzy Entropy Thresholding and R Weighted Mean Algorithm