怎么在这幅图片上把已经有的圆抠出来

youyiyang

怎么在这幅图片上把已经有的圆抠出来，然后不要背景，然后再判断这些圆里面有十字痕迹的保留，没有的去掉，因为要判断是不是钉子

Criss

缩小定义域 reduce_domain，之后就可以单独每个独立阈值找螺丝十字！

youyiyang

上图这些圆都是object, 怎么转换成region, 因为 reduce_domain需要对region进行操作

Criss

youyiyang 发表于 2021-10-28 20:17
上图这些圆都是object, 怎么转换成region, 因为 reduce_domain需要对region进行操作

你怎么提取出来的呢？阈值找到的出来就是区域region，其他找到的，就自己转换吧。比如：轮廓转区域 gen_region_contour_xld

youyiyang

圆里面的十字怎么判断？

youyiyang

[mw_shl_code=text,true]* 识别区域

*scale_image(Image,Invert,minGray,maxGray)
gen_rectangle1 (Rectangle, startY, startX, endY, endX)
reduce_domain (Image, Rectangle, ImageReduced)
* 初步边缘提取
edges_image (ImageReduced, ImaAmp, ImaDir, 'lanser2', 0.9, 'nms', 8, 16)
threshold (ImaAmp, Region1, 1, 255)
connection (Region1, ConnectedRegions)
select_shape (ConnectedRegions, SelectedRegions, ['outer_radius','anisometry','area'], 'and', [10,1,50], [30,3.9,300])
shape_trans (SelectedRegions, RegionTrans, 'outer_circle')
dilation_circle (RegionTrans, RegionDilation,5.5)
union1 (RegionDilation, RegionUnion)
reduce_domain (Image, RegionUnion, ImageReduced2)
* 详细边缘提取
edges_sub_pix (ImageReduced2, Edges, 'lanser2', 0.1, 8, 16)
select_shape_xld (Edges, SelectedXLD, ['contlength','outer_radius','circularity'], 'and', [40,10,0.5], [99999,99999,1])

*segment_contours_xld (SelectedXLD, ContoursSplit, 'lines_circles', 4, 2, 2)
gen_region_contour_xld(SelectedXLD, SelectedRegion_ContoursSplit,'filled')
union1 (SelectedRegion_ContoursSplit, RegionUnion_new)
reduce_domain( Image,RegionUnion_new, ImageReduced_RegionUnion_new)
threshold(ImageReduced_RegionUnion_new, Region2, 1, 255)
connection (Region2, ConnectedRegions2)

* 筛选
count_obj (ConnectedRegions2, NumberContours)
*gen_empty_obj (Circles)
for i := 1 to NumberContours by 1
    select_obj (ConnectedRegions2, ObjectSelected, i)
    gen_region_contour_xld(ObjectSelected, Object123, 'filled')
    *dev_display (ObjectSelected)
    reduce_domain(Image, Object123, Image_Object_Reduced)
    *get_contour_global_attrib_xld (ObjectSelected, 'cont_approx', Attrib)
    *if (Attrib == 1)
    *    concat_obj (Circles, ObjectSelected, Circles)
    *endif
endfor[/mw_shl_code]
现在能够把钉子和类似钉子的圆形取出来，而且可以循环检查，但是gen_region_contour_xld(ObjectSelected, Object123, 'filled')和 reduce_domain(Image, Object123, Image_Object_Reduced)因为ObjectSelected不是region所以不行