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CudaInvokeMinMaxLoc Method
http://www.emgu.com
Finds minimum and maximum element values and their positions. The extremums are searched over the whole GpuMat or, if mask is not IntPtr.Zero, in the specified GpuMat region.

Namespace: Emgu.CV.Cuda
Assembly: Emgu.CV.Cuda (in Emgu.CV.Cuda.dll) Version: 3.0.0.2161 (3.0.0.2161)
Syntax
public static void MinMaxLoc(
	IInputArray gpuMat,
	ref double minVal,
	ref double maxVal,
	ref Point minLoc,
	ref Point maxLoc,
	IInputArray mask = null
)

Parameters

gpuMat
Type: Emgu.CVIInputArray
The source GpuMat, single-channel
minVal
Type: SystemDouble
Pointer to returned minimum value
maxVal
Type: SystemDouble
Pointer to returned maximum value
minLoc
Type: System.DrawingPoint
Pointer to returned minimum location
maxLoc
Type: System.DrawingPoint
Pointer to returned maximum location
mask (Optional)
Type: Emgu.CVIInputArray
The optional mask that is used to select a subarray. Use null if not needed
See Also