Description of slvecfilters

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slvecfilters

PURPOSE

SLVECFILTERS Vectorizes the filter band

SYNOPSIS

function vfb = slvecfilters(fb)

DESCRIPTION

SLVECFILTERS Vectorizes the filter band

 $ Syntax $
   - vfb = slvecfilters(fb)

 $ Arguments $
   - fb:       The filter band
   - vfb:      The vectorized filter band
   
 $ Description $
   - vfb = slvecfilters(fb) vectorizes the filter band. A set of filter
     band is an array of size (ph x pw x ...). In its vectorized form,
     each filter is vectorized as a row vector. Then for a set of 
     filter band with same size, vfb is a matrix of size k x d, here 
     d = ph x pw, while k is the number of filters.
   
 $ History $
   - Created by Dahua Lin on Sep 2nd, 2006

CROSS-REFERENCE INFORMATION

This function calls:

This function is called by:

• slapplyfilterband SLAPPLYFILTERBAND Applies filter band to filter images in batch

SOURCE CODE

0001 function vfb = slvecfilters(fb)
0002 %SLVECFILTERS Vectorizes the filter band
0003 %
0004 % $ Syntax $
0005 %   - vfb = slvecfilters(fb)
0006 %
0007 % $ Arguments $
0008 %   - fb:       The filter band
0009 %   - vfb:      The vectorized filter band
0010 %
0011 % $ Description $
0012 %   - vfb = slvecfilters(fb) vectorizes the filter band. A set of filter
0013 %     band is an array of size (ph x pw x ...). In its vectorized form,
0014 %     each filter is vectorized as a row vector. Then for a set of
0015 %     filter band with same size, vfb is a matrix of size k x d, here
0016 %     d = ph x pw, while k is the number of filters.
0017 %
0018 % $ History $
0019 %   - Created by Dahua Lin on Sep 2nd, 2006
0020 %
0021 
0022 fbsiz = size(fb);
0023 if ndims(fb) == 2
0024     k = 1;
0025 else
0026     k = prod(fbsiz(3:end));
0027 end
0028 d = prod(fbsiz(1:2));
0029 
0030 vfb = reshape(fb, [d, k])';
0031 
0032 
0033     
0034

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