filter_DOOG_3D

PURPOSE ^

3D difference of offset Gaussian (DooG) filters.

SYNOPSIS ^

function dG = filter_DOOG_3D( r, sigmas, nderivs, show )

DESCRIPTION ^

 3D difference of offset Gaussian (DooG) filters.

 Creates a 3D derivative of Gaussian kernel.  Use primarily for visualization purposes.
 For filtering better to use the indvidiual seperable kernels for efficiency purposes.
 
 INPUTS
   r       - final mask will be NxNxN where N=2r+1
   sigmas  - sigmas for 3D Gaussian
   nderivs - order of derivative along each dimension
   show    - [optional] whether or not to visually display the kernel

 OUTPUTS
   dG      - The derivative of Gaussian mask

 EXAMPLE
   dG = filter_DOOG_3D( 50, [4,4,10], [1,1,0], 1 );

 DATESTAMP
   29-Sep-2005  2:00pm

 See also FILTER_DOOG_1D, FILTER_DOOG_2D

CROSS-REFERENCE INFORMATION ^

This function calls: This function is called by:
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