# Contents

## PURPOSE

FILTERS

## SYNOPSIS

This is a script file.

## DESCRIPTION

     FILTERS
     See also

     Filters:
       filterBinomial1d - 1D binomial filter (approximation to Gaussian filter)
       filterDog2d      - Difference of Gaussian (Dog) Filter.
       filterDoog       - n-dim difference of offset Gaussian DooG filter (Gaussian derivative).
       filterGabor1d    - Creates an even/odd pair of 1D Gabor filters.
       filterGabor2d    - Creates an even/odd pair of 2D Gabor filters.
       filterGauss      - n-dimensional Gaussian filter.
       filterSteerable  - Steerable 2D Gaussian derivative filter (for visualization).
       filterVisualize  - Used to visualize a 1D/2D/3D filter.

     Operations involving a set of filters (a filter bank or FB):
       FbApply2d        - Applies each of the filters in the filterbank FB to the image I.
       FbCrop           - Crop a 2D filterbank (adjusting filter norms).
       FbMake           - Various 1D/2D/3D filterbanks (hardcoded).
       FbReconstruct2d  - Use to see how much image information is preserved in filter outputs.
       FbVisualize      - Used to visualize a series of 1D/2D/3D filters.

     Simple nonlinear filters:
       medfilt1m        - One-dimensional adaptive median filtering with missing values.
       modefilt1        - One-dimensional mode filtering.