Halcon表面划伤检测实例

Halcon表面划伤检测实例*关闭活动图形窗口dev_close_window ()*在程序执行中指定输出行为为off。dev_update_window (off)dev_set_line_width (4)*显示Image到窗口dev_display (Image)*WindowID窗口使用黑色字体在一个方框内显示按F5继续运行字体，并注册F5消息处理disp_continue_message (WindowID, black, true)stop ()* step: segment image 步骤：图像分割* - using a local threshold 使用局部阈值*对Image进行7*7均值滤波mean_image (Image, ImageMean, 7, 7)*得到的图像为：*用均值滤波图像作为二值化阈值图像，返回小于灰度值小于该点阈值-5的图像。dynthreshold (Image, ImageMean, DarkPixels, 5, dark) *得到的区域为:*得到的连通区域为:connection (DarkPixels, ConnectedRegions)*设置混合输出颜色为12种dev_set_colored (12)*显示当前图形窗口中的图像对象。dev_display (ConnectedRegions)*disp_continue_message (WindowID, black, true)stop ()* step: process regions 处理区域* - select large regions 选取大区域*从ConnectedRegions中得到面积大于10小于1000的区域到SelectedRegions select_shape (ConnectedRegions, SelectedRegions, area, and, 10, 1000)*设置当期图像窗口的图像对象为Imagedev_display (Image)*设置当期图像窗口的图像对象为SelectedRegionsdev_display (SelectedRegions)disp_continue_message (WindowID, black, true)stop ()* - visualize fractioned scratch 可视化划分划痕*打开窗口设置局部open_zoom_window (0, round(Width/2), 2, 303, 137, 496, 3, WindowHandleZoom)*设置输出颜色为蓝色dev_set_color (blue)dev_display (Image)dev_display (SelectedRegions)disp_continue_message (WindowID, black, true)stop ()* - merge fractioned scratches via morphology 通过形态学合并划痕*合并 SelectedRegions 的并集到 RegionUnionunion1 (SelectedRegions, RegionUnion)*以3.5作为圆形区域扩张的半径，对RegionUnion扩张得到RegionDilation dilation_circle (RegionUnion, RegionDilation, 3.5)dev_display (Image)dev_display (RegionDilation)disp_continue_message (WindowID, black, true) stop ()*由 RegionDilation 获取骨架给 Skeletonskeleton (RegionDilation, Skeleton)*通过8邻接或四邻接力法将骨架链接后传给Errorsconnection (Skeleton, Errors)dev_set_colored (12)dev_display (Image)dev_display (Errors)disp_continue_message (WindowID, black, true) stop ()* - distinguish small and large scratches 区分大小划痕 *关闭窗口close_zoom_window (WindowHandleZoom, Width, Height) *选择面积大于50小于1000的区域到Scratches*选择面积大于1小于50的区域到Dotsselect_shape (Errors, Dots, area, and, 1, 50)dev_display (Image) dev_set_color (red) dev_display (Scratches) dev_set_color (blue) dev_display (Dots)*step: acquire image 步骤：获取图像* * * * *读入文件名为surface_scratch的图像到I mage read_image (Image, surface_scratch)get_image_size (Image, Width, Height)*打开一个和I mage宽高比一致的图像窗口dev_open_window_fit_image (Image, 0, 0, Width, Width, WindowID)*设置窗口字体大小为12,字体类型为Courier，粗体不倾斜字体。set_display_font (WindowID, 12, Courier, true, false) *设置填充模式为margi ndev_set_draw (margin)*定义输出轮廓线宽为4