A Novel Approach for Image Steganography based on LSB Technique

Abstract

Steganography involves communicating secret data in an appropriate digital carrier, e.g., image, audio, and video files. We focus on image based steganography in this paper. A novel approach based on LSB technique for embedding text data i.e. secret image in digital color images is proposed. Secret text is encoded in Least Significant Bits (LSB) of three components of color image namely, red, green and blue (RGB) channels using the angular transformation concept. On the receiving end, the message is extracted by performing the same angular rotation to the stego image. Experiments are performed on standard images and it has been observed that the stego image looks visually the same as like the cover image.