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Combined the image encryption and hiding technique, this paper proposed a method of color image protective transmission based on Logistic map and LSB hiding algorithm. Firstly, Logistic map produced three chaotic sequences by one secret-key. Secondly, the image pixel matrixs of R,G,B were permuted by the chaotic sequences and digital image encryption was realized in the space domain. Finally, the...
We propose an effective and robust method to enhance the color image under low or non-uniform lighting conditions that models global and local adaptation of the human visual system. The main idea is that we preserve the discontinuities of the local luminance with combined most significant bit and an adaptive smoothing mask. The local contrast enhancement adjusts the intensity of each pixel based on...
In this paper, we propose a new re-coloring algorithm to enhance the accessibility for the color vision deficient (or colorblind). Compared to people with normal color vision, people with color vision deficiency (CVD) have difficulty in distinguishing between certain combinations of colors. This may hinder visual communication owing to the increasing use of colors in recent years. To address this...
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