运动模糊图像复原结果中伪像的消除

针对Lucy-Ricardson(LR)算法得到的复原图像存在不同程度的Gibbs效应、边缘振铃等多种类型的伪像,提出一种新的算法,在LR算法的复原图像迭代公式中引入一函数作为其系数,使得图像平滑区域与原来的LR算法的恢复方式相同,同时在图像的边缘区域可以有效地保护细节,起到低通滤波器的作用。实验结果表明,改进算法能很好地平滑伪像和重建图像细节,复原图像的峰值信噪比(PSNR)与其他算法相比有很好的提升。

Removing artifacts of motion-blurred restoration results.

There is inevitable produce Gibbs effect and the ringing artifacts at the edge through Lucy-Richardson(LR)algorithm restore blurred image.In this paper,it presents a new algorithm,introduces new function as coefficient.In the smooth region it uses the original LR algorithm to restoration,and in the edge region new method can keep the details effectively like low-pass filter.The restored image has a weak ringing artifacts and Gibbs effect is suppressed.By comparing experimental results,the improved approach can smooth artifacts better and reconstruct details of image,PSNR of restored image is greatly improved.