imaqLightMeterPoint

Usage

int imaqLightMeterPoint(Image* image, Point point, int showMeasurement, float* intensity, const CoordinateTransform2* transform);

Measures the pixel intensities in a 3 x 3 pixel neighborhood centered on a point of an image.

IMAQ_IMAGE_U8, IMAQ_IMAGE_I16, IMAQ_IMAGE_SGL

Name	Type	Description
image	Image*	The image that the function uses for intensity measurement.
point	Point	The coordinate location of the intensity measurement. The intensity measurement is made in a 3 x 3 block centered on the point.
showMeasurement	int	Set this parameter to TRUE to overlay the location of the intensity measurement on the image. Set this parameter to FALSE to leave the image unmodified.
intensity	float*	On return, the average intensity of the pixels in a 3 x 3 neighborhood centered on the point. This parameter is required and cannot be NULL.
transform	const CoordinateTransform2*	An optional specification of the coordinate transform for point. This parameter specifies how to transform the location of the intensity measurement based on the difference between the reference coordinate system and the measurement coordinate system. Set this parameter to NULL if you do not need to transform point.

Type	Description
int	On success, this function returns a non-zero value. On failure, this function returns 0. To get extended error information, call imaqGetLastError().