Image Steganography Based on
Hamming Code and Edge Detection
Shuliang Sun
School
of Electronics and Information Engineering, Fuqing Branch of Fujian Normal
University, China
Abstract: In this paper a novel
algorithm which is based on hamming code and 2k correction is
proposed. The new method also utilizes canny edge detection and coherent bit length.
Firstly, canny edge detector is applied to detect the edge of cover image and
only edge pixels are selected for embedding payload. In order to enhance security, the edge pixels are scrambled. Then hamming encoding is practiced
to code the secret data before embedded. Calculate coherent bit length L on the
base of relevant edge pixels and replace with L bits of payload message. Finally,
the method of 2k correction
is applied to achieve better imperceptibility in stego image. The
experiment shows that the proposed method is more advantage in Peak
Signal-to-Noise Ratio (PSNR), capacity and universal image quality index (Q)
than other methods.
Keywords: Hamming code, 2k correction, coherent bit length, canny edge detector.