[Background]During the data acquisition of an extreme ultraviolet(EUV)spectroscopic diagnostic system in experimental advanced superconducting Tokamak(EAST),significant amounts of one-pixel noises are consistently observed.This is attributed to the influence of hard X-ray on the charge coupling device(CCD)detector.[Purpose]This study aims to detect and denoise spectral images in the EUV spectral image processing system based on the field programmable gate array(FPGA).[Methods]First of all,based on limiting filtering algorithm,spectral image processing was optimized by replacing fixed limiting ...
