Grid cluster density based approach for image steganography

By the advancement of internet and technology the information communication becomes quick and easier. Without data security eavesdroppers can steal confidential and private information for illegal purpose and this could be great harm for any organization. So this is necessary while transferring confidential data, the data must be secure and safe from hackers. For this purpose one approach called steganography is used that makes the existence of data secret in such a way that no one can get the actual information. In this paper a new approach is used for data security that conceals the data in variable position of image grids with multiple security layers. The Experimental results show that the stego image that contains secret message does not compromise the quality of image. This approach produces high PSNR value which indicates good imperceptibility and the capacity of the technique.