Improved Content Based Image Watermarking

Details Improved Content Based Image Watermarking Improved Content Based Image Watermarking

2006-08-25

arxiv.org/abs/cs/0608098v1

Computer Science

Cryptography and Security

24 pages

Scientific paper

This paper presents a robust and transparent scheme of watermarking that exploits the human visual systems' sensitivity to frequency, along with local image characteristics obtained from the spatial domain. The underlying idea is generating a visual mask based on the visual systems' perception of image content. This mask is used to embed a decimal sequence while keeping its amplitude below the distortion sensitivity of the image pixel. We consider texture, luminance, corner and the edge information in the image to generate a mask that makes the addition of the watermark imperceptible to the human eye.

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