An Enhanced Image Steganography Technique in Art Images?Journal: International Journal of Computer Science and Mobile Computing - IJCSMC (Vol.3, No. 8)
Publication Date: 2014-08-30
Authors : Shemi P B; Remya Paul;
Page : 613-621
Keywords : Cubism-like-image; tiles; secret-embedded-mosaic-image;
A new method of combining art image generation and hiding a secret image into this cubismlike image to enhance the camouflage effect for various information-hiding applications is proposed. First, a new type of computer art, called line-based Cubism-like image, which keeps a characteristic of the Cubism art created by extract prominent lines and regions. Then the cubism like image is divided into target tiles and the secret is also divided into secret tiles of same size as target. A mapping sequence is created based on secret-target tile similarity and the secret image is embedded into the target using that mapping sequence. To enhance security a secret key is shared between sender and receiver. The secret key will generate a random permutation that is used to permuting the mapping sequence. That mapping information is also embedded into the Cubism Image. Finally a secret-embedded-mosaic-image is created as stego image and that is sent to the receiver. When the receiver gets the output image, using the common secret key, he retrieves the mapping sequence and using that mapping sequence he will extract the secret image from the cubism image. Data hiding with the minimal distortion is carried out skillfully during the process of recolouring the regions and embedding is based on LSB replacement. The tile similarity algorithm avoids keeping a large database of matching images.
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Last modified: 2014-08-31 01:39:12