CogImageSharpness.Execute Method

CogImageSharpness Execute Method

Cognex VisionPro 9.8 SR1

Calculate the sharpness of the given image in the given region.

Namespace: Cognex.VisionPro.ImageProcessing
Assembly: Cognex.VisionPro.ImageProcessing (in Cognex.VisionPro.ImageProcessing.dll) Version: 75.0.0.0

Syntax

C++

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public double Execute(
	CogImage8Grey inputImage,
	ICogRegion region
)

public double Execute(
	CogImage8Grey inputImage,
	ICogRegion region
)

Public Function Execute ( 
	inputImage As CogImage8Grey,
	region As ICogRegion
) As Double

Public Function Execute ( 
	inputImage As CogImage8Grey,
	region As ICogRegion
) As Double

public:
double Execute(
	CogImage8Grey^ inputImage, 
	ICogRegion^ region
)

public:
double Execute(
	CogImage8Grey^ inputImage, 
	ICogRegion^ region
)

Parameters

inputImage: Type: Cognex.VisionPro CogImage8Grey
The image of which to compute sharpness.

region: Type: Cognex.VisionPro ICogRegion
The region within inputImage to compute sharpness.

Return Value

Type: Double

The returned sharpness.

Exceptions

Exception	Condition
CogOperatorNoInputImageException	inputImage is NULL.
CogImageNoPixelsException	inputImage is not allocated.
ArgumentException	Mode is AutoCorrelation and the height or width of inputImage is less than 3 pixels.
ArgumentException	Mode is AbsDiff and AbsDiffDistanceX or AbsDiffDistanceY like outside of inputImage.

Remarks

Calculates the sharpness of of the supplied inputImage within the supplied region.

If Mode is GradientEnergy, the image is processed using Gaussian smoothing before measuring sharpness.

The returned sharpness value is only valid with respect to other sharpness values computed using the current Mode and image content. You cannot compare sharpness scores generated using different methods or images.