Secret Fragment Visible Mosaic Image Using Genetic Algorithm
Nithya Francis, N. Naveen · 2013
Abstract : This paper presents an image hiding method using fragment visible mosaic image. In this method the secret image is divided into blocks or tiles and they are shuffled or reordered to become a target image in the mosaic form. In the existing method an image similarity measure, h-feature is defined using the color distribution in the pixels. The h-feature is used to select the most appropriate cover image for the secret image from an image database and also for the tile shuffling process. Since the tile re-ordering is done in a single iteration the performance is limited. So a genetic algorithm is used here in the tile shuffling by choosing PSNR as the match criterion to improve the quality of encrypted image.