Secure Image Transmission via Mosaic Images using Genetic Algorithm

Rincy Medayil, John Jacob, P Cherian
2015 IJIRST-International Journal for Innovative Research in Science & Technology|   unpublished
A technique for secure image transmission is proposed, that transforms a secret image into a secret-fragment-visible mosaic image using Genetic Algorithm. The created mosaic image looks similar to a randomly selected target image which is used as a mask of the secret image. Mosaic image is obtained by dividing the secret image into fragments and fitting these tile fragments into the blocks of the target image. Genetic Algorithm is used to generate a mapping sequence for tile-block fitting.
more » ... the tiles are fitted into the target image, color characteristics of tile images are transformed to be those of the corresponding blocks of the target image. A lossless data hiding scheme using a key is used for embedding the secret image recovery information into the created mosaic image. The recovery of the secret image is by using the same key and the tile-block mapping sequence. The use of Genetic Algorithm results in better clarity of the retrieved secret image.
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