Provide Privacy of Data and Image using Mosaic Technique

Images are considered as one of the most important medium of conveying information, in the field of computer vision, by understanding images the information extracted from them can be used for other tasks. Image mosaic is the process of partitioning a digital image into multiple segments. Image de noising is done before the mosaic to avoid the selection of falsely object for mosaic to segment the image into multiple parts without loss of information. The goal of mosaic is to change the representation of an image into more meaningful and easier to analyse. Image mosaic is basically used to locate the objects and boundaries (lines, curves, etc.) in images. Mosaic technique can be classified into different types namely, Region Based, Edge Based, Threshold Based etc. In this paper we are proposed mainly three concepts for performing generation of secret key, secrecy of transferring data and also perform image mosaic process. By implementing diffie Hellman key exchange protocol we can generate shared key between the users. In this paper we are using an encryption technique using Reverse Binary xor Encryption Algorithm converting plain format data into unknown format. After converting data into cipher format we can put into image by using least significant bit technique. After completion of data to be hidden into image and perform mosaic technique for segment image. In this paper we are using region based technique for performing image mosaic process. By implementing those concepts we can provide more security of transferring data and also improve the efficiency of network.