Morphology Method
Syntax
CWIMAQVision.Morphology SourceImage, DestImage, Operation [, StructuringElement]
Return Type
On success, this method returns 0. On failure, this method returns a negative number.
Purpose
Performs primary morphological transformations.
Remarks
This method modifies the source image. If you need the original source image, create a copy of the image using the CWIMAQVision.Copy method before using this method.
All source and destination images must be U8 images.
The source image for a morphological transformation must have been created with a border capable of supporting the size of the structuring element. A 3 x 3 structuring element requires a minimal border of 1, a 5 x 5 structuring element requires a minimal border of 2, and so on. The border size of the destination image is not important.
This method is optimized for MMX.
Parameters
SourceImage As CWIMAQImage
The image on which the method performs the morphological operations.
DestImage As CWIMAQImage
The resulting image.
Operation As CWIMAQMorphOperations
The type of morphological transformation to use.
StructuringElement As Variant
[Optional] A CWIMAQStructuringElement object that describes the structuring element applied to the image. The method applies a 3 x 3 structuring element if you do not supply this parameter.
Example
Private Sub Run_Click()
Dim i As New CWIMAQImage
Dim structuringElement As New CWIMAQStructuringElement
' Threshold the image in Viewer1 to make it a binary image.
CWIMAQVision1.Threshold CWIMAQViewer1.Image, CWIMAQViewer1.Image, _
128, 255, , 255
' Perform a POpen operation on the image in Viewer1.
' Store the result in i.
CWIMAQVision1.Morphology CWIMAQViewer1.Image, i, _
cwimaqGrayMorphPOpen, structuringElement
' Display the result in Viewer2 using a binary palette.
CWIMAQViewer2.Attach i
CWIMAQViewer2.Palette.Type = cwimaqPaletteBinary
End Sub