Improved method to alleviate blocking artifacts via curve-fitting
Mingyi He · Electronic Design Engineering · 2013
Image processing in discrete cosine transform(DCT) domain has been widely utilized.However,it is affected by blocking artifacts seriously because of the independent processing of the blocks.An improved method to alleviate blocking artifacts via curve-fitting is proposed in this paper.The steps of this algorithm are obtaining dot-to-dot mapping relationship of brightness,acquiring fitting curve,processing the brightness of the original image by the fitting curve and combining the processed brightness with the other components in the adjusted image(with blocking artifacts),resulted image is acquired,which can keep the color of the adjusted image,has little blocking artifacts and low computational complexity.