Design of a scan converter using the cubic convolution interpolation with Canny edge detection

With the increasing use of digital monitor technique, requirements for image interpolation have become more critical. Especially, the development of LCD screen sizes has grown up. Conventional interpolation methods have several drawbacks, such as blurring or blocky effects. Many edge detect methods have been widely used to avoid these problems but are notorious for high complexity and cost. Therefore, in order to enhance quality of image. In the thesis, we used Canny edge detection to fined image edge, the part detected transforming by nearest neighbor interpolation the other part transforming by cubic convolution interpolation. This method improves sharp of edge and resolution of image. The FPGA implementation of the proposed video scaling algorithm is from SVGA(800×600) to WXGA(1280×768) on the TFT-LCD plane at the real time video.