C# Class Accord.Imaging.ComplexFilters.FrequencyFilter

Filtering of frequencies outside of specified range in complex Fourier transformed image.

The filer keeps only specified range of frequencies in complex Fourier transformed image. The rest of frequencies are zeroed.

Sample usage:

 // create complex image ComplexImage complexImage = ComplexImage.FromBitmap( image ); // do forward Fourier transformation complexImage.ForwardFourierTransform( ); // create filter FrequencyFilter filter = new FrequencyFilter( new IntRange( 20, 128 ) ); // apply filter filter.Apply( complexImage ); // do backward Fourier transformation complexImage.BackwardFourierTransform( ); // get complex image as bitmat Bitmap fourierImage = complexImage.ToBitmap( );

Initial image:

Fourier image:

Inheritance: IComplexFilter

Afficher le fichier Open project: accord-net/framework

Méthodes publiques

Méthode	Description
Apply ( ComplexImage complexImage ) : void	Apply filter to complex image.
FrequencyFilter ( ) : System	Initializes a new instance of the FrequencyFilter class.
FrequencyFilter ( IntRange frequencyRange ) : System	Initializes a new instance of the FrequencyFilter class.

Method Details

Apply() public méthode

Apply filter to complex image.

The source complex image should be Fourier transformed.

public Apply ( ComplexImage complexImage ) : void
complexImage	ComplexImage	Complex image to apply filter to.
Résultat	void

FrequencyFilter() public méthode

Initializes a new instance of the FrequencyFilter class.

public FrequencyFilter ( ) : System
Résultat	System

FrequencyFilter() public méthode

Initializes a new instance of the FrequencyFilter class.

public FrequencyFilter ( IntRange frequencyRange ) : System
frequencyRange	AForge.IntRange	Range of frequencies to keep.
Résultat	System