Abstract: A new secure image transmission is proposed which transform automatically a given secret image into a secret partial fragment partial mosaic image. The partial mosaic image which looks similar to a promptly selected mask image is created by dividing the secret image into blocks and transferring the colour characteristics to be those blocks of mask image. Efficient techniques are created to conduct the colour conversion process so that the secret image may be retrieved losslessly. A technique of handling the overflows/underflows in the altered pixel’s colour space is also proposed .The information required for retrieving the secret image is inserted into the created partial mosaic image by a lossless data hiding scheme using a key. Good experimental result shows the practicality of the proposed method.

Keywords: Three Dimensional Grid, 3-D Images; 3-D Image Processing, 3-D Image Analysis.