Abstract
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 stego-images.