Histogram Uniformization for Digital Image Encryption
作者： Juliano B. Lima , Ricardo M. Campello de Souza
关键词:
摘要: In this paper, histogram uniformization of digital images by means the finite field cosine transform (FFCT) is examined. The approach consists in dividing image into blocks and applying FFCT, a recursive manner, to each block. Simulations procedure show that transformed exhibits uniform shape its pixels have low correlation with their neighbors. This result achieved due modular arithmetic used application FFCT blocks. suitability proposed technique context encryption discussed.
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