在51halcon上看到一個需求,需要將一張小圖去背景后貼在大圖的指定位置,通過博客https://www.cnblogs.com/lgyup/p/8472840.html啟發,
PS:自己試驗使用每個像素循環繪制方式發現效率太差改用博客使用的數組連續繪制的方式.
*讀圖 read_image (Image, 'C:/Users/yoga/Desktop/測試圖像/月亮.png') read_image (ImagePart, 'C:/Users/yoga/Desktop/測試圖像/飛機.png') dev_update_off () count_seconds (Seconds) *rgb分離 decompose3 (Image, ImageR, ImageG, ImageB) decompose3 (ImagePart, ImagePartR, ImagePartG, ImagePartB) *獲取目標點 threshold (ImageR, Region, 128, 255) connection (Region, ConnectedRegions) select_shape_std (ConnectedRegions, SelectedRegions, 'max_area', 70) area_center (SelectedRegions, Area, Row, Column) *飛機去背景 auto_threshold (ImagePartR, Regions1, 2) select_shape_std (Regions1, SelectedRegions1, 'max_area', 70) connection (SelectedRegions1, ConnectedRegions1) select_shape_std (ConnectedRegions1, SelectedRegions2, 'max_area', 70) difference (ImagePartR, SelectedRegions2, RegionDifference) connection (RegionDifference, ConnectedRegions2) select_shape_std (ConnectedRegions2, SelectedRegions3, 'max_area', 70) get_region_points (SelectedRegions3, PartRows, PartColumns) count:=|PartRows| startRs:=gen_tuple_const(count, Row) startCs:=gen_tuple_const(count, Column) *將所有像素坐標加上偏移量 Rows:=startRs+PartRows Cols:=startCs+PartColumns *r繪制 get_grayval (ImagePartR, PartRows, PartColumns, Grayval) copy_image (ImageR, DupImageR) set_grayval (DupImageR, Rows, Cols, Grayval) *g繪制 get_grayval (ImagePartG, PartRows, PartColumns, Grayval1) copy_image (ImageG, DupImageG) set_grayval (DupImageG, Rows, Cols, Grayval1) *b繪制 get_grayval (ImagePartB, PartRows, PartColumns, Grayval2) copy_image (ImageB, DupImageB) set_grayval (DupImageB, Rows, Cols, Grayval2) compose3 (DupImageR, DupImageG, DupImageB, MultiChannelImage) count_seconds (Seconds1) tt:=(Seconds1-Seconds)*1000
最后效果如下
下面是原圖
