C# Class AForge.Imaging.Filters.Median

Median filter.

The median filter is normally used to reduce noise in an image, somewhat like the mean filter. However, it often does a better job than the mean filter of preserving useful detail in the image.

Each pixel of the original source image is replaced with the median of neighboring pixel values. The median is calculated by first sorting all the pixel values from the surrounding neighborhood into numerical order and then replacing the pixel being considered with the middle pixel value.

The filter accepts 8 bpp grayscale images and 24/32 bpp color images for processing.

Sample usage:

// create filter Median filter = new Median( ); // apply the filter filter.ApplyInPlace( image );

Initial image:

Result image:

Inheritance: BaseUsingCopyPartialFilter

ファイルを表示 Open project: holisticware-admin/MonoVersal.AForgeNET Class Usage Examples

Public Methods

Method	Description
Median ( ) : System	Initializes a new instance of the Median class.
Median ( int size ) : System	Initializes a new instance of the Median class.

Protected Methods

Method	Description
ProcessFilter ( UnmanagedImage source, UnmanagedImage destination, Rectangle rect ) : void	Process the filter on the specified image.

Method Details

Median() public method

Initializes a new instance of the Median class.

public Median ( ) : System
return	System

Median() public method

Initializes a new instance of the Median class.

public Median ( int size ) : System
size	int	Processing square size.
return	System

ProcessFilter() protected method

Process the filter on the specified image.

protected ProcessFilter ( UnmanagedImage source, UnmanagedImage destination, Rectangle rect ) : void
source	UnmanagedImage	Source image data.
destination	UnmanagedImage	Destination image data.
rect	System.Drawing.Rectangle	Image rectangle for processing by the filter.
return	void