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Ranorex

ImagingProcessingDetectEdgesLaplace Method (Bitmap)

Converts the input images to a grayscale image that contains object edges from the input image using a Laplace filter kernel.

Namespace:  Ranorex
Assembly:  Ranorex.Core (in Ranorex.Core.dll) Version: 12.7.4-git.38314c06
Syntax
public static Bitmap DetectEdgesLaplace(
	Bitmap input
)

Parameters

input
Type: System.DrawingBitmap
An image.

Return Value

Type: Bitmap
A grayscale image containing object edges.
Exceptions
ExceptionCondition
ArgumentNullExceptionIf input is null.
ArgumentExceptionIf the input image is not a grayscale image and cannot be converted to Format24bppRgb pixel format (i.e. if it is no color image in a 32 bit format).
Remarks
By default the LaplaceKernel5x5 is used as the filter kernel, unless the image with or height is smaller than 5 pixels; in that case the LaplaceKernel3x3 is used instead.
See Also