文件名称:WatermarkingAlgorithmResearchandImplementationBas
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In this paper the watermarking programs based on the
discrete cosine transform (DCT) domain DC component (DC) is
adopted. Through adjusting the block DCT coefficient of the image the
watermarks are hidden. And blocking the selected image according to
8×8 pixel, then dividing the selected image into four non-overlapped
sub image blocks according to 4×4 pixel, and thus the watermarks are
embedded through adjusting their DCT coefficient. The experimental
results show that the method has strong robust.
discrete cosine transform (DCT) domain DC component (DC) is
adopted. Through adjusting the block DCT coefficient of the image the
watermarks are hidden. And blocking the selected image according to
8×8 pixel, then dividing the selected image into four non-overlapped
sub image blocks according to 4×4 pixel, and thus the watermarks are
embedded through adjusting their DCT coefficient. The experimental
results show that the method has strong robust.
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WatermarkingAlgorithmResearchandImplementationBasedonDCTBlock.pdf