[Halcon vision] morphological corrosion

Catalog

• Concept
• operator
• Code
• example

 

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1. Concept

         Morphological corrosion ： For the prominent part in the image , Edge burr part , To corrode , It can present a good smoothing effect .

2. operator  

         Corrosion classification ： According to the shape of structural elements , It can be divided into circular corrosion , And rectangular corrosion .

        erosion_circle ()    Circular corrosion

        erosion_rectangle ()    Rectangular corrosion

 

3. Code  

* Read images 
read_image (Image, 'printer_chip/printer_chip_01')

* Threshold segmentation 
threshold (Image, Region, 150, 255)

* Circular corrosion 
erosion_circle (Region, RegionErosion, 5)

* Rectangular corrosion 
erosion_rectangle1 (RegionErosion, RegionErosion1, 11, 11)

* Circular expansion 
dilation_circle (RegionErosion1, RegionDilation, 5)

* Difference between two areas , Get the edge contour 
difference (RegionDilation, RegionErosion1, RegionDifference)

 

4. example  

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