Figure 3: The flow of the proposed EDUMS method. (a) The LR image is the input for the bicubic upscaling process. (b) The bicubic upscaling (bicubic US) image is generated. (c) The edge detection function provides the edge-directed information from the bicubic US image. The direction images contain direction and intensity information. (d) Edge-directed sharpening produces the HR edge image. (e) The detail stretch component extracts the HR detail image. (f) The HR output is the fusion of the HR edge and the HR detail images.