Name

gsm2d — 2D gaussian smoothing

Calling Sequence

MG = gsm2d(M [,sigma])

Parameters

M
the matrix (intensity image) to be smoothed
sigma
the standard deviation of the gaussian kernel. Defaults to 5.
MG
the smoothed image.

Description

Function gsm performs 2D gaussian smoothing of the image M, with standard deviation sigma, using FFT.

Examples

       initial_dir = PWD;
       chdir (SIPDIR + 'images');

       [Img,map] = imread('onca.gif');
       xbasc()
       imshow(Img,map);
       Img = im2gray(Img, map);     // Img is now 0-1 range
       xbasc()
       imshow(Img);
       Img = gsm2d(Img,2);
       xbasc()
       imshow(Img);

       chdir(initial_dir);

Authors

Ricardo Fabbri <ricardofabbri (AT) users DOT sf DOT net>

Availability

The latest version of the Scilab Image Processing toolbox can be found at

http://siptoolbox.sourceforge.net

See Also

gsm , imconv , fft