Description

Steganography is the art or practice of concealing a message, image, or file within another message, image, or file. The main advantage of Steganography over cryptography is that an ordinary observer cannot tell whether the file contains any hidden information in it or not. A form of Steganography where the original message is retrieved without any loss in data is called Lossless Image Steganography. In this research paper we deal with hiding a digital message image inside a digital cover image leading us to the stego image. The embedding and extraction causes no loss of message making it lossless. Our method is a form of message secure transmission since it cannot be retrieved by an attacker who is unaware of the algorithm. The proposed algorithm has been compared with four other algorithms in terms of Peak Signal to Noise Ratio (PSNR) showing its supremacy.

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A Mask based approach for Lossless Colour Image Steganography.

Steganography is the art or practice of concealing a message, image, or file within another message, image, or file. The main advantage of Steganography over cryptography is that an ordinary observer cannot tell whether the file contains any hidden information in it or not. A form of Steganography where the original message is retrieved without any loss in data is called Lossless Image Steganography. In this research paper we deal with hiding a digital message image inside a digital cover image leading us to the stego image. The embedding and extraction causes no loss of message making it lossless. Our method is a form of message secure transmission since it cannot be retrieved by an attacker who is unaware of the algorithm. The proposed algorithm has been compared with four other algorithms in terms of Peak Signal to Noise Ratio (PSNR) showing its supremacy.