A contour smoothing algorithm of image super-resolution
Zhao Xu · Microcomputer Information · 2010
Because pixel values of image are not continuity,image super-resolution brings some jaggy and ring artifacts around the edges.For reducing jaggy and ring artifacts around the edges,we propose a super-resolution algorithm based on contour smoothing.To solve contour smooth problem,we use directional filter to get some local direction information of image contours.In the training set,directions information and high resolution image are priori information.For every pixel through compute the related coefficient or similarity of points and patches,use neighbor nearest global search to get relevant high resolution pixel value,generate estimate of high resolution image.Through optimize this image,get super resolution image.