Halcon膨胀腐蚀

简介：

               膨胀可以增大区域，填充内部孔和增强了离散点，但增大了面积。腐蚀可以缩小区域，减少间隔区域的连接和离散点的数量，但减小了面积。 开运算是先腐蚀后膨胀，有益于消除线和点区域，减少干扰。闭运算是先膨胀后腐蚀，有益于连接间隙和孔，使区域更加连贯。

 

介绍：

1. 膨胀： dilation_rectangle1, dilation1, dilation2, dilation_circle, dilation_golay, dilation_seq.
2. 腐蚀： erosion_rectangle1, erosion1, erosion2, erosion_circle, erosion_golay, erosion_seq.
3. 开运算：opening_rectangle1, opening, opening_circle, opening_golay, opening_seq，gray_opening, gray_opening_rect, gray_opening_shape.
4. 闭运算：closing_rectangle1, closing, closing_circle, closing_golay, gray_closing, gray_closing_rect, gtay_closing_shape.

dilation_rectangle1（用矩形结构元素膨胀区域）

Region (input_object)	Regions to be dilated.	区域
RegionDilation (output_object)	Dilated regions.	输出的膨胀区域
Width (input_control)	Width of the structuring rectangle. Default value: 11 Suggested values: 1, 2, 3, 4, 5, 11, 15, 21, 31, 51, 71, 101, 151, 201 Typical range of values: 1 ≤ Width ≤ 511 (lin) Minimum increment: 1 Recommended increment: 10	宽
Height (input_control)	Height of the structuring rectangle. Default value: 11 Suggested values: 1, 2, 3, 4, 5, 11, 15, 21, 31, 51, 71, 101, 151, 201 Typical range of values: 1 ≤ Height ≤ 511 (lin) Minimum increment: 1 Recommended increment: 10	高

erosion_rectangle1（用矩形结构元素腐蚀区域）

Region (input_object)	Regions to be eroded.	区域
RegionErosion (output_object)	Eroded regions.	输出的腐蚀区域
Width (input_control)	Width of the structuring rectangle. Default value: 11 Suggested values: 1, 2, 3, 4, 5, 11, 15, 21, 31, 51, 71, 101, 151, 201 Typical range of values: 1 ≤ Width ≤ 511 (lin) Minimum increment: 1 Recommended increment: 1	宽
Height (input_control)	Height of the structuring rectangle. Default value: 11 Suggested values: 1, 2, 3, 4, 5, 11, 15, 21, 31, 51, 71, 101, 151, 201 Typical range of values: 1 ≤ Height ≤ 511 (lin) Minimum increment: 1 Recommended increment: 1	高

opening_rectangle1 （用矩形结构元素进行开运算）

Region (input_object)	Regions to be opened.	区域
RegionOpening (output_object)	Opened regions.	输出的开运算区域
Width (input_control)	Width of the structuring rectangle. Default value: 10 Suggested values: 1, 2, 3, 4, 5, 7, 9, 12, 15, 19, 25, 33, 45, 60, 110, 150, 200 Typical range of values: 1 ≤ Width ≤ 511 (lin) Minimum increment: 1 Recommended increment: 1	宽
Height (input_control)	Height of the structuring rectangle. Default value: 10 Suggested values: 1, 2, 3, 4, 5, 7, 9, 12, 15, 19, 25, 33, 45, 60, 110, 150, 200 Typical range of values: 1 ≤ Height ≤ 511 (lin) Minimum increment: 1 Recommended increment: 1	高

closing_rectangle1（用矩形结构元素进行闭运算）

Region (input_object)	Regions to be closed.	区域
RegionClosing (output_object)	Closed regions.	输出的闭运算区域
Width (input_control)	Width of the structuring rectangle. Default value: 10 Suggested values: 1, 2, 3, 4, 5, 7, 9, 12, 15, 19, 25, 33, 45, 60, 110, 150, 200 Typical range of values: 1 ≤ Width ≤ 511 (lin) Minimum increment: 1 Recommended increment: 1	宽
Height (input_control)	Height of the structuring rectangle. Default value: 10 Suggested values: 1, 2, 3, 4, 5, 7, 9, 12, 15, 19, 25, 33, 45, 60, 110, 150, 200 Typical range of values: 1 ≤ Height ≤ 511 (lin) Minimum increment: 1 Recommended increment: 1	高

 

使用：

1. 通过动态阈值或全局阈值提取目标区域。

read_image (Image, 'E:/照片/RGB')

decompose3 (Image, Image1, Image2, Image3)
trans_from_rgb (Image1, Image2, Image3, ImageResult1, ImageResult2, ImageResult3, 'hsv')
 
auto_threshold (ImageResult3, Regions, 2)
connection (Regions, ConnectedRegions1)
select_shape (ConnectedRegions1, SelectedRegions, 'area', 'and', 200, 50000)

*threshold (ImageResult3, SelectedRegions, 128, 255)

*膨胀
dilation_rectangle1 (SelectedRegions, RegionDilation, 11, 11)
*腐蚀
erosion_rectangle1 (SelectedRegions, RegionErosion, 11, 11)
*开运算，先腐蚀后膨胀
opening_rectangle1 (SelectedRegions, RegionOpening, 11, 11)
*闭运算，先膨胀后腐蚀
closing_rectangle1 (SelectedRegions, RegionClosing, 11, 11)

 

RGB

分割的区域

膨胀

 

腐蚀

 

开运算

 

闭运算