Color image holographic watermarking method based on wavelet de-noising
A color image, wavelet noise reduction technology, applied in image data processing, image data processing, instruments, etc., can solve the problems of watermark image white noise, unfavorable image objectively distinguish watermark information, etc., to achieve improved robustness and good automatic recognition Watermark information, high security effect
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[0015] Hereinafter, a preferred embodiment of a color image holographic watermarking method based on wavelet noise reduction according to the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited to this embodiment. In order to enable the public to have a thorough understanding of the present invention, specific details are described in the following preferred embodiments.
[0016] The preferred embodiments of the present invention are all under the 64-bit Window7 operating system, using standard test chart Lena images (512×512 pixels) and watermark images (128×128 pixels), and selecting channel independence based on human visual perception The better Lab color space is used as the carrier, which is simulated by MATLAB2011b software.
[0017] A color image holographic watermarking method based on wavelet noise reduction of the present invention includes two parts: watermark embedding and watermark extract...
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