Comparison of Algorithms and FPGA Hardware System Implementation for Color Interpolation

[[abstract]]在本論文中，我們提出一個整合性和可控制式的彩色內插處理器架構，包含有雙線性內插、參考文獻[1]內插、參考文獻[2]內插和我們提出的內插。Bilinear內插由於它架構簡單，因此被廣泛的使用，然而它在邊緣地區會造成模糊而產生很大內插錯誤。我們提出的內插演算法有經過邊緣偵測，所以在邊緣區域有較好的效果以及在內插處理上，使用單邊增益去逼近中間我們要內插的位置。參考文獻[1]、參考文獻[2]內插被用來和我們提出的內插演算法作PSNR的比較。根據這些演算法設計即時處理器架構，最後整個硬體電路使用XILINX公司所生產的FPGA和發展軟體來作模擬以及驗証。[[abstract]]In this thesis, we present an integrated and programmable color interpolation processor , which consists of Bilinear interpolation, Reference[1] interpolation,Reference[2] interpolation,and proposed interpolation.Bilinear interpolation is the most widely used method due to its simplicity.However,it has large errors in the edge region that blur the image. The proposed interpolation algorithm can provide better edge region with edge detection and use one side gain to approach to middle location where we want to interpolate for interpolation processing. Reference[1] and Reference[2]interpolation are other algorithms,to compare PSNR with proposed interpolation algorithm’s.we develop real-time architecture for practical applications. The whole hardware circuit are finally simulated and verified by using a FPGA with XILINX development tools