You are here: Start » AVL.NET » AVL.ErodeImage(AvlNet.Image, AvlNet.Region, AvlNet.Region, AvlNet.Pixel?, AvlNet.ImageMorphologyKernel, int, int?, AvlNet.Image, AvlNet.Region)

AVL.ErodeImage(AvlNet.Image, AvlNet.Region, AvlNet.Region, AvlNet.Pixel?, AvlNet.ImageMorphologyKernel, int, int?, AvlNet.Image, AvlNet.Region)

Replaces each pixel with the minimum of pixels within a kernel.

Namespace:AvlNet
Assembly:AVL.NET.dll

Syntax


public static void ErodeImage(
	AvlNet.Image inImage,
	AvlNet.Region inRoi,
	AvlNet.Region inSourceRoi,
	AvlNet.Pixel? inBorderColor,
	AvlNet.ImageMorphologyKernel inKernel,
	int inRadiusX,
	int? inRadiusY,
	out AvlNet.Image outImage,
	out AvlNet.Region diagKernel
)

Parameters

inImage
Type: AvlNet.Image
Input image
inRoi
Type: AvlNet.Region
Range of outImage pixels to be computed, or null.
inSourceRoi
Type: AvlNet.Region
Range of inImage pixels to be considered in computations, or null.
inBorderColor
Type: System.Nullable<AvlNet.Pixel>
Color of the imaginary pixels outside the image boundaries, or null.
inKernel
Type: AvlNet.ImageMorphologyKernel
Kernel shape
inRadiusX
Type: System.Int32
Nearly half of the kernel's width (2*R+1)
inRadiusY
Type: System.Nullable<System.Int32>
Nearly half of the kernel's height (2*R+1), or same as inRadiusX, or null.
outImage
Type: AvlNet.Image
Output image
diagKernel
Type: AvlNet.Region
Kernel shape

Description

The operation replaces each pixel with the darkest pixel in its neighbourhood, thus shrinking bright areas in inImage and expanding the dark ones.

Examples

ErodeImage performed on the sample image with inKernel = Box, inRadiusX = 1, inRadiusY = 1.

Hardware Acceleration

This operation is optimized for SSE2 technology for pixels of types: all formats (when inSourceRoi = NIL and inBorderColor = NIL).

This operation supports automatic parallelization for multicore and multiprocessor systems.

Hardware acceleration settings may be manipulated with Settings class.

Errors

Error type Description
DomainError inBorderColor is relevant only when inSourceRoi is set to Auto (NIL) in ErodeImage.
DomainError Not supported kernel on input in ErodeImage.

See also