基于Contourlet变换的焊缝X射线图像增强

为了改善X射线成像对比度低、背景噪声明显、被测工件细节不易显示等缺点.针对X射线图像的特点及常规增强方法的不足,应用一种基于Contourlet变换的增强算法,对X射线图像进行图像增强,提高了原图像的对比度和像质,达到了细节区域的最佳视觉效果.实验结果表明,该算法与直方图均衡和小波域图像增强方法相比,有效的增强了对比度、抑制了背景噪声.该算法对X射线图像增强后,图像所达到的射线检测标准比前两种算法高.

Weld X-ray Image Enhancement Based on Contourlet Transform

X-ray imaging has the disadvantages of low contrast,obvious background noise,inability to show the details of the workpiece,and so on.In view of the characteristics of X-ray imaging and the shortcomings of conventional enhance methods,this paper presents an enhancement algorithm based on the Contourlet transform to deal with the radiographic images,with the contrast and the quality of the original images improved and the best visual effects of the minutia area achieved.The experiment results show that this ...