A Robust Color Image Watermarking Techniques with Contrast Enhancement
نویسندگان
چکیده
ABSTRACT: In recent years, many works on digital image watermarking have been proposed all aiming at protection of the copyright of an image document or authentication of data. With the help of my proposed Modified LSB watermarking embedding with Color Histogram Equalization -Contrast Adjustment (CHE-CA) algorithm, the high contrast watermarked image is obtained & watermark can easily be extracted in both clean and noisy environments. Experiments are performed to verify the robustness of the proposed algorithm. The results show that the proposed algorithm is superior to other algorithm in terms of providing a high PSNR. It is also shown that the proposed algorithm is highly robust against various kinds of attacks such as compression, noise, filtering, cropping & rotation.
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