CDImageMorphology<TPixel>

Class Description

CDImageMorphology is a templated class derived from CVisImage. The template takes a single argument specifying the pixel type (TPixel).

Currently only separable flat-square kernels are available. Later versions will support separable (flat) rectangular kernels and arbitrary non-separable kernels represented as images (including complex and RGB).

Also included will be greyscale reconstruction, watersheds, h-domes, ultimate erotion and other morphological operations.

 
• Constructors/Destructor
• Methods
 

Erode

Dilate

Open

Close

CDImageMorphology (void)

Default constructor. The image parameters are uninitialized and the instance is unusable until an image array is assigned.
CDImageMorphology
    (int width, int height,
     int nbands = 1,
     int imopts = evisimoptDefault,
     BYTE *pbData = 0)

CDImageMorphology
   (SIZE size,
     int nbands = 1,
     int imopts = evisimoptDefault,
     BYTE *pbData = 0)

CDImageMorphology
    (const RECT& rect,
     int nbands = 1,
     int imopts = evisimoptDefault,
     BYTE *pbData = 0)

CDImageMorphology
    (const CVisShape& shape,
     int imopts = evisimoptDefault,
     BYTE *pbData = 0)

Construct an image with the specified dimensions, number of bands, and options.

If pbData is zero, allocate the memory needed. If pbData is not zero, use the memory it points to.
CDImageMorphology
    (CVisMemBlock& memblock,
     int width, int height,
     int nbands = 1,
     int imopts = evisimoptDefault)

CDImageMorphology
    (CVisMemBlock& memblock,
     SIZE size,
     int nbands = 1,
     int imopts = evisimoptDefault)

CDImageMorphology
    (CVisMemBlock& memblock,
     const RECT& rect,
     int nbands = 1,
     int imopts = evisimoptDefault)

CDImageMorphology
    (CVisMemBlock& memblock,
     const CVisShape& shape,
     int imopts = evisimoptDefault)

Construct an image with the specified dimensions, number of bands, and options.

No new memory is allocated. The image points to the memblock supplied.
CDImageMorphology
    (const CDImageMorphology<TPixel>& imageSrc)

Construct an image from another image.
 
 

Argument	Description
width	width of image
height	height of image
rect	reference to a RECT structure
shape	reference to a CVisShape instance specifying image properties
memblock	reference to a MemBlock instance
imageSrc	reference to an Image instance
nbands	number of bands in image
imopts	EVisImOpt image options. Options can be OR'ed.

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CDImageMorphology<TPixel>::Erode

void Erode(DWORD dwSize)

Performs morphological greylevel erodion, which corresponds to local minimum within the structuring element (here: a flat square).
 
 

Argument	Description
dwSize	Side length of  the square structuring element.

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CDImageMorphology<TPixel>::Dilate

void Dilate(DWORD dwSize);

Performs morphological greylevel erodion, which corresponds to local minimum within the structuring element (here: a flat square).

 

Argument	Description
dwSize	Side length of  the square structuring element.

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CDImageMorphology<TPixel>::Open

void Open(DWORD dwSize)

Performs morphological greylevel Opening, which corresponds to an Erodion followed by a Dilation with the same strucuting element.
 
 

Argument	Description
dwSize	Side length of  the square structuring element.

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CDImageMorphology<TPixel>::Close

void Close(DWORD dwSize);

Performs morphological greylevel Closing, which corresponds to a Dilation followed by a Erotion with the same structuring element..

 

Argument	Description
dwSize	Side length of  the square structuring element.

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Authors: Søren Falch Jørgensen

Last updated: 03-05-99