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This paper presents a new algorithm for blind image watermarking which has a high robustness against common image processing attacks such as noise addition (Gaussian noise, Salt & Pepper noise, Speckle noise and etc.), JPEG and JPEG2000 compressions, Histogram Equalization, Average and Gaussian filters, Scaling and Cropping. According to this fact that a watermark with about 70 bits is enough...
In this paper, We present a blind image watermarking method based on DCT domain and independent component analysis (ICA). First of all, an approximation of cover image is created using ICA. We divide approximation image to equal 8×8 blocks and then apply DCT transform to each block. We use spread spectrum (SS) method for embedding the watermark bits. In our method a group of random bits are generated...
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