An image processor for SXGA/UXGA FPD

We present an image processor for SXGA (super extended graphics array, 1280×1024)/UXGA (ultra XGA, 1600×1200) FPD (flat panel display) such as TFT (thin film transistor) LCD (liquid crystal display) and PDP (plasma display panel). The proposed image processor can display the full screen of a FPD with lower or higher resolution of video sources such as NTSC, VGA, SVGA, XGA, SXGA, and UXGA by means of a new interpolation and decimation filters. Also, in order to improve an image quality of a FPD we present some video processing techniques such as γ(gamma)-correction, contrast control, and edge enhancement. We have simulated the proposed interpolation and decimation algorithm and compared the results of the proposed algorithms with those of other conventional algorithms quantitatively by calculating PSNR (peak signal noise ratio). We have also simulated the proposed video processing techniques and compared the results by visual test. And we have designed the proposed image processor by VHDL and verified it by functional and timing simulation