Skin Tone Based Secret Data Hiding in Images

Maintaining the secrecy of digital information when being communicated over the internet is presently challenge. An ideal steganography technique embeds message information into a carrier image with virtually imperceptible modification of the image. Adaptive steganography comes closer to this ideal since it exploits the natural variations in the pixel intensities of a cover image to hide the secret message. The objective of steganography is a method of embedding additional information into the digital contents that is undetectable to listeners. Proposed method is Biometric Steganography. Steganography is, Skin tone region of images. Instead of embedding secret data anywhere in image, it will be embedded in only edges of skin tone region. Image Edge detection significantly reduces the amount filters out useless information, while preserving the important structural properties in an image. Edge detection method improves signal to noise ratio, & gives better detection especially in noise conditions.