Copyright Protection for Watermark Image Using LSB Algorithm in Colored Image

This paper, we introduce a new digital watermarking algorithm using least significant bit (LSB). LSB is used because of its little effect on the image. This new algorithm is using the third and the fourth least significant bits (LSB) technique and shifting the watermark of pixel coordinates of image before embedding the watermark. The proposed algorithm is flexible depending on the length of the watermark text. If the length of the watermark text is (MxN)/2 the proposed algorithm will also embed the extra of the watermark text in the second and forth LSB. We compare our proposed algorithm with the 1-LSB algorithm and Lee’s algorithm using Peak signal-to-noise ratio (PSNR). This new algorithm improved its quality of the watermarked image. Experimental results show that the quality of the watermarked image is higher. PSNR value is 56.6db in proposed method this is very higher compare than another method.