Algorithm to Enhance the Robustness and Imperceptibility of LSB

The proposed method enhance the imperceptibility and robustness of LSB technique. In proposed method, results are compared with the existing LSB technique. It uses only one image in place of two images because watermark is self-generated from the host image. To enhance the imperceptibility of watermarked image, a very less pixel valued watermark image is used to embed in host image which is generated from the host image by using proposed algorithm. Proposed method uses complement operation on the last bit of pixels value of watermarked image to enhance its robustness. For security purpose, master key is used on watermarked image. The most important point in proposed method is that both the watermark image and master key are generated from host image. Master key is secured by using random matrix image.