图像处理技术的油画破损区域复原研究

汪华丽 王微

摘  要： 传统图像处理技术的油画破损区域复原技术的复原结果清晰度差，为解决这一问题，在传统研究的基础上探讨了一种新的图像处理技术的油画破损区域复原技术。通过复原函数把复原过程模型化，结合加性噪声作用于输入的含有破损区域的油画图像上，构建复原模型。采用Hough变化检测油画频谱图中亮线的方向，以二值图像为基础对破损的油画图像进行恰当的二值分割，确定油画破损区域模糊参数，再计算运动方向上像素移动的距离，确定出油画破损区域尺度后实现复原。为检测复原技术的效果，与传统复原技术进行实验对比，结果表明，基于图像处理技术的油画破损区域复原方法可以相对清晰地复原油画，该技术对于油画行业发展有一定的促进作用。

关键词： 油画破损区域复原; 图像处理; 复原模型; 图像分割; 参数确定; 复原效果测试

中图分类号： TN911.73?34; TM727                   文献标识码： A                  文章编号： 1004?373X（2020）13?0036?04

Research on oil painting damaged area′s restoration

based on image processing technology

WANG Huali1， WANG Wei2

（1. Public Basic Course Department， Wuhan Institute of Design and Sciences， Wuhan 430205， China;

2. School of Information Engineering， Wuhan Institute of Design and Sciences， Wuhan 430205， China）

Abstract： As the traditional image processing technology has poor recovery result for oil painting damaged area， a new image processing technology for oil painting damage region restoration is discussed on the basis of the traditional research. The restoration process is modeled by the restoration function， and the restoration model is established by acting additive noise on the inputted image of an oil painting with damaged area. The Hough change is used to detect the direction of the bright lines in the spectrogram of the oil painting. The proper binarization image segmentation of the oil painting with damaged area is performed on the basis of binary image to determine the fuzzy parameter of the damaged area of ??the oil painting. And then， the distance of the pixel movement in the direction of motion is calculated. The oil painting restoration is achieved after determining the size of the damaged area of ??the oil painting. In order to test the effect of the restoration technology， it is compared with the traditional restoration technology. The results show that the image restoration technology based image restoration technology can restore the oil painting relatively clearly. This technology has a certain promotion effect on the development of oil painting industry.

Keywords： oil painting damaged area restoration; image processing; restoration model; image segmentation; parameter determination; restoration effect testing

0  引  言

在油画研究中，油画破损区域复原技术具有重要的理论意义和现实意义，目前研究油画破损区域复原中存在的难点问题为估算点扩散函数，国内对这一难点问题研究相对较少[1]。在采集破损油画区域的过程中，如果采集设备和目标在曝光的一瞬间产生相对运动的话，将导致油画破损区域图像品质降低，从而造成破损油画区域图像模糊称为运动模糊[2]。油画具有重要的历史意义，一旦出现破损就会影响后续研究，对油画破损区域进行复原是一项十分困难的任务。……