Text Hiding Scheme Using Mapping Technique for Spatial Domain

In this paper, a new steganographic method for spatial domain has been proposed, which includes a new mapping technique for the secret message. The algorithm selects random pixels to hide the mapped secret message. A “seed” is used as a secret key to randomly select pixel from the cover image, which successively helps to spread the message bits over the entire image. The result of the proposed algorithm is analyzed and discussed using MSE, PSNR, SC, AD, MD and NAE. The histogram of the cover and stego image is also shown.