A New Data Hiding Method Using Block Pixel Intensity Range

In this paper, we have proposed a new data hiding method for grayscale image based on the block pixel intensity range. This work is inspired by the Varasaki’s data hiding method. Here, the cover image is symmetrically divided into blocks of size \(3 \times 3\). The intensity range of each block is computed and this intensity range is divided into four zones. For each block, the neighboring pixels are modified to place into a zone according to the message bit so that the message can be reconstructed losslessly. Our proposed method gives better quality stego image than LBP-based data hiding.

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