Masks in Fourier space

Collaboration diagram for Masks in Fourier space:

Classes
class	FourierFilter
class	SoftNegativeFilter

Functions
void	bandpassFilter (MultidimArray< double > &img, double w1, double w2, double raised_w)
void	gaussianFilter (MultidimArray< double > &img, double w1)
void	realGaussianFilter (MultidimArray< double > &img, double sigma)

Detailed Description

Function Documentation

bandpassFilter()

void bandpassFilter	(	MultidimArray< double > &	img,
		double	w1,
		double	w2,
		double	raised_w
	)

Fast access to bandpass filter. Frequencies are normalized to 0.5

Definition at line 812 of file fourier_filter.cpp.

{
    FourierFilter Filter;
    if (w1==0)
    {
        Filter.FilterBand=LOWPASS;
        Filter.w1=w2;
    }
    else if (w2==0.5)
    {
        Filter.FilterBand=HIGHPASS;
        Filter.w1=w1;
    }
    else
    {
        Filter.FilterBand=BANDPASS;
        Filter.w1=w1;
        Filter.w2=w2;
    }
    Filter.FilterShape = RAISED_COSINE;
    Filter.raised_w=raised_w;
    img.setXmippOrigin();
    Filter.generateMask(img);
    Filter.applyMaskSpace(img);
}

gaussianFilter()

void gaussianFilter	(	MultidimArray< double > &	img,
		double	w1
	)

Fast access to Gaussian filter. Frequencies are normalized to 0.5

Definition at line 838 of file fourier_filter.cpp.

{
    FourierFilter Filter;
    Filter.FilterShape = GAUSSIAN;
    Filter.FilterBand = LOWPASS;
    Filter.w1=w1;
    img.setXmippOrigin();
    Filter.generateMask(img);
    Filter.applyMaskSpace(img);
}

realGaussianFilter()

void realGaussianFilter	(	MultidimArray< double > &	img,
		double	sigma
	)

Fast access to real gaussian filter. Sigma is in pixel units.

Definition at line 849 of file fourier_filter.cpp.

{
    FourierFilter Filter;
    Filter.FilterShape = REALGAUSSIAN;
    Filter.FilterBand = LOWPASS;
    Filter.w1=sigma;
    img.setXmippOrigin();
    Filter.generateMask(img);
    Filter.applyMaskSpace(img);
}