Abstract
In this chapter, the author describes the pixel value correlation-based steganography techniques and maximum pixel value difference-based steganography techniques. The pixel value-based correlation steganography techniques utilize the relationship among the pixel values of a block, whereas the maximum pixel value difference steganography techniques utilize the largest pixel value difference among different pairs of pixels in the block. Although the PSNR values of these techniques are better as compared to the traditional PVD schemes, the hiding capacity is not improved.
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