摘要:The Internet is a public network with many issues of data transfer security.
Steganography is a data transmission security technique that is done by hiding the
message in a container media, such as an image. The media certainly has its limited
payload to accommodate the embedded data. This paper proposes a method for
increasing the payload of secret messages in an image. The edge area is used to
accommodate more message bits because the image edge area can better tolerate
pixel value changes. In this research paper, Canny and Sobel detectors are combined
to get a wider edge area. This two-detector combined method provides a larger edge
area for greater payload of messages while maintaining imperceptibility of stegoimages.