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Code Listing by michael scheinfeild

Code 1-3 of 3   

The gaussian filter used in image processing for noise filtering.
the second derivate of the filter used in image processing operator LOG laplacian of gaussian this is second derivate of gaussina this used for edge detection and also smoothing the image so reducing effect of noise. the derivate computed using the symbolic math toolbox. now this filter can be used in image processing toolbox using command imfilterc ...

this application receives binary image / matrix . it returns the indexes of rows and columns by the order . each next point is the close one. so indexes are by order . not as retuned by the find command.
also if someone can improve the steps...

shape description using FD fourier coeeficeients used for shape classification.
the steps :
1 . find the indexes borders of edged image (input binary edged image see test for example)
2. sort the indexes so they in distance order