2D matched filtering

how to perform 2D matched filtering on image.

% Gaussian kernel definitions
match_filt1 = exp(-(x.*x)/(2*sigma*sigma)); 
match_filt2 = max(match_filt1)-match_filt1;
% finding the correct orientation which is the orientation with maximum filter response

[Geoff Hayes]

Fred - how is the code related to your question? Please clarify and describe exactly what you are attempting.

[fred bnm]

it is clarify.perform 2d gaussian kernel matched filtering on image.this link for 1D http://www.mathworks.com/help/phased/ug/matched-filtering.html http://www.siue.edu/~sumbaug/RetinalProjectPapers/Using%202D%20Matched%20Filter%20to%20Estimate%20Blood%20Vessel%20Length.pdf