Is there a function which computes a 2-D (two-dimensional) IIR frequency response in the Image Processing Toolbox 3.2 (R13)?

I would like to do 2-D filtering using IIR filters. The Image Processing Toolbox contains a FREQZ2 function which computes a 2-D FIR frequency response, but it does not handle IIR filters. In addition, the FILTER2 command in MATLAB only supports 2-D FIR filters.

Answer 1

[MathWorks Support Team]

The ability to compute a 2-D IIR frequency response is not available in the Image Processing Toolbox.

As a workaround, try using the function 'Inverze_2D_z' from MATLAB Central. The link is provided below:

 <http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=15768&objectType=FILE>

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