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A novel technique for RGB invisible watermarking based on 2-DWT-DCT algorithm

The objective of Digital Watermarking is to provide security in terms of information hiding and copyright protection. The researchers are continuously working to create robust digital image watermarking methods. In this paper proposed a novel technique for RGB digital watermarking based on 2-Discrete Cosine Transform (DCT) with discrete wavelet transform (DWT) algorithm. For this use of two images- first one is cover image and second one is secret image. For providing better security, we worked on RGB elements. In this performed on two algorithms-first one is 2-DWT and secondly 2-DCT applied on RGB elements. Experimental results Shows that PSNR, NE value, and PSNR reach up to 56%.