halcon-log_image对数变换【能增加亮度】
log 增加 Image HALCON 亮度
2023-09-27 14:28:41 时间
在HDevelop中
4.png
read_image (Image, 'D:/bb/tu/4.png') log_image (Image, LogImage, 'e') *对数变换 *如果图像包含超出对数函数有效域的灰度值,即LogImage中相应的灰度值设置为0 *参数1:原始图像 *参数2:为log变换后图像 *参数3:为对数的底,一般取自然对数e, 2, 10等 dev_open_window(0,0,346,355,'black',WindowHandle) dev_display(LogImage)
在QtCreator中
HObject ho_Image, ho_LogImage;
HTuple hv_WindowHandle;
ReadImage(&ho_Image, "D:/bb/tu/4.png"); LogImage(ho_Image, &ho_LogImage, "e"); //对数变换 //如果图像包含超出对数函数有效域的灰度值,即LogImage中相应的灰度值设置为0 //参数1:原始图像 //参数2:为log变换后图像 //参数3:为对数的底,一般取自然对数e, 2, 10等 SetWindowAttr("background_color","black"); OpenWindow(0,0,346,355,0,"visible","",&hv_WindowHandle); DispObj(ho_LogImage, hv_WindowHandle);
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