An Efficient Steganography Scheme Based on Edge Detection for High Payload

Steganography is widely used to embed a massive amount of secret information. Several methods focus on taking advantage of a sharp area in which to embed secret information due to its ability to contain more secret bits undetected than a smooth area. Consequently, we propose a scheme that presents a major distinction between sharp areas and smooth areas by utilizing hybrid edge detection. To reduce the additional payload, error in bit extraction, and enhance high capacity, we adopt a truncated value of pixel to detect whether the pixel is defined as an edge pixel or not. As a result, we can not only reduce error in bit extraction, but also make the most of space for embedding secret data and maintain the good quality of the stego image. Compared to the scheme proposed by Ioannidou et al., our scheme enhances much higher capacity.