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In this Letter, a novel steganography of digital watermark scheme which contains digital watermark embedding and extraction processes is proposed. The proposed scheme is based on an iterative process of Arnold scrambling transform which is controlled by secret key shared by copyright owner and authorized users, and the extension of morphological component analysis theory which utilizes morphological diversity as the kernel role in blind source separation. Images acquired in steganography experiments prove the effectiveness of proposed scheme. Both visual effect and quantitative experiment results of the Peak Signal to Noise Ratio (PSNR) index and Structural Similarity (SSIM) index confirm its steganography capability as well as its robustness to different noise attacks through communication channel.

Steganography of digital watermark based on Speed-up generalized morphological component analysis