gauss2d

Compute the bidimensionnal Gaussian

Syntax

[out] = gauss2d(kx,ky,sigma)

Description

This function computes the bidimensionnal Gaussian. This is not truly a wavelet but this function can be usefull for approximation calculation.

Input Data

kx,ky

[REAL MATRICES]: The frequency plane. Use meshgrid to create it.

sigma

[REAL SCALARS]: The spread of the Gaussian.

Output Data

out

[REAL MATRIX]: The Gaussian in frequency plane.

Example(s)

>> step = 2*pi/128;
>> [kx,ky] = meshgrid( -pi : step : (pi-step) );
>> wav = gauss2d(kx,ky,6,1);
>> imagesc(wav);

References

See Also

cwt2d cwt2d_yashow meshgrid samcwt2d samcwt2d_yashow sarcwt2d

Location

continuous/2d/wave_defs/gauss2d.m