SPATMOD::IMAGE::FILTER_FOCAL_PMEDIAN Class Reference

The P-Median filter is designed to suppress noise while preserving edge and line detail. More...

#include <spatmod/imagefilterfocal.h>

Inheritance diagram for SPATMOD::IMAGE::FILTER_FOCAL_PMEDIAN:

[legend]

List of all members.

Public Member Functions
	FILTER_FOCAL_PMEDIAN (STAGE *pSourceImage, bool TakeOwnershipSource, STAGE *pMaskImage, bool TakeOwnershipMask, double WeightParam, UINT32 NumFocalRows, UINT32 NumFocalColumns)
	FILTER_FOCAL_PMEDIAN (STAGE *pSourceImage, bool TakeOwnershipSource, double WeightParam, UINT32 NumFocalRows, UINT32 NumFocalColumns)
virtual	~FILTER_FOCAL_PMEDIAN ()

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Detailed Description

The P-Median filter is designed to suppress noise while preserving edge and line detail.

The filter calculates median values for two subsets of the values in the filter window: 1) combined horizontal and vertical transects through the center cell, and 2) two diagonal transects through the center cell. These two median values are then averaged. The output of the filter is a user-controlled weighted average of the averaged median and the original center cell value.

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Constructor & Destructor Documentation

SPATMOD::IMAGE::FILTER_FOCAL_PMEDIAN::FILTER_FOCAL_PMEDIAN	(	STAGE *	pSourceImage,
		bool	TakeOwnershipSource,
		double	WeightParam,
		UINT32	NumFocalRows,
		UINT32	NumFocalColumns
	)

Constructor.

Parameters:

	pSourceImage	Source image stage
	TakeOwnershipSource	Filter takes ownership of source image
	WeightParam	User-controlled weighted average of the input raster value and the P-Median value
	NumFocalRows	Number of rows in processing window
	NumFocalColumns	Number of columns in processing window

SPATMOD::IMAGE::FILTER_FOCAL_PMEDIAN::FILTER_FOCAL_PMEDIAN	(	STAGE *	pSourceImage,
		bool	TakeOwnershipSource,
		STAGE *	pMaskImage,
		bool	TakeOwnershipMask,
		double	WeightParam,
		UINT32	NumFocalRows,
		UINT32	NumFocalColumns
	)

Constructor with mask to determine areas to filter.

Parameters:

	pSourceImage	Source image stage
	TakeOwnershipSource	Filter takes ownership of source image
	pMaskImage	Mask, must have single component sample
	TakeOwnershipMask	Filter takes ownership of mask stage and will delete when needed
	WeightParam	User-controlled weighted average of the input raster value and the P-Median value
	NumFocalRows	Number of rows in processing window
	NumFocalColumns	Number of columns in processing window

virtual SPATMOD::IMAGE::FILTER_FOCAL_PMEDIAN::~FILTER_FOCAL_PMEDIAN

(

)

[virtual]

Destructor.

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The documentation for this class was generated from the following file:

• spatmod/imagefilterfocal.h