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IMcPatternMatchingCreateCrossCorrelationImage Method

Creates cross-correlation image of two sources.

Namespace:  MediaCy.IQL.Align
Assembly:  MediaCy.IQL.Align (in MediaCy.IQL.Align.dll) Version: 10.0.6912.0
Syntax
VB
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Function CreateCrossCorrelationImage ( 
	vImage2 As Object,
	Optional Flags As mcImageCreateFlags = mcImageCreateFlags.mcicfDefault,
	<OptionalAttribute> vImage1 As Object
) As McImage

Parameters

vImage2
Type: SystemObject
Flags (Optional)
Type: MediaCy.IQL.EnginemcImageCreateFlags
image creation flags
vImage1 (Optional)
Type: SystemObject

Return Value

Type: McImage
Remarks
The method uses the ancestor image or image provided in vTargetImage to perform cross correlation between vRefImage and TargetImage. The method applies apodization to images (if DoApodization is TRUE), resizes, if necessary, both images to the next power of 2, performs Fourier cross-correlation, clips the image to the original size. The method produces a floating point image with bright spikes corresponded to best-match positions of the vRefImage of TargetImage. The method can be used finding locations of objects, such as cells, characters, etc on images, which then can be used for following processing. Note, that the best-match positions can be also obtained using the FindPattern method without generating a cross-correlation image.
Examples
VB
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'test image is bloodflow.seq
Dim Im1 As McImage, Ref As McImage
Set Im1 = ActiveImage
ThisApplication.ActiveImage.Aoi.Reset
'create AOI selecting one cell
ThisApplication.ActiveImage.Aoi.SetBox 0, 62, 48, 83, 70
Set Ref = ThisApplication.ActiveImage.Duplicate
Im1.Aoi.Reset
Im1.PatternMatching.CorrelationMethodFFT.DoRotation = False
Im1.PatternMatching.CorrelationMethodFFT.DoScaling = False
Im1.PatternMatching.CorrelationMethodFFT.CorrelationMethod = mcCorrelationFFTPhase
'create cross-correlation image
Im1.PatternMatching.CreateCrossCorrelationImage Ref
See Also