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（责任编辑：曾 晶）
Implementation of Ferguson Bicubic Surface Interpolation
Image Scaling Algorithm Based on FPGA
PENG Yan1， HU Danping2， LIU Yuhong1， ZHANG Rongfen1*
（1.College of Big Data and Information Engineering， Guizhou University， Guiyang 550025， China;
2.Beijing Dongfang Dewei System Technology Co. Ltd.， Beijing 100081， China）
Abstract：
As an important part of image processing， image scaling has a wide range of applications. With the development of technology， the requirements for the quality and speed of image scaling have also increased in practical applications. The scaling experiment of diabetic retinal image in MATLAB was reakuzed， and the superior performance of Ferguson bicubic surface interpolation algorithm in the detail processing of image scaling was verified. And then， the algorithm was implemented on the hardware platform FPGA which is good at processing data in nanosecond speed， achieving good image scaling， which is beneficial to engineering applications and practices such as medical image processing.
Key words：
image scaling; diabetic retinal image; Ferguson bicubic surface interpolation algorithm; FPGA