How to use Fourier Descriptor for object shape classification

YuriG
YuriG
in Image-Pro Automation (Macros, Apps, Reports)

Fourier Descriptor measurement can be used for object shape classification. The attached project uses low-level code to extract object outlines and match objects of 4 different, but relatively close looking shapes (scaled and rotated letters M,F,E,W).

The macro DemoFourierDescriptor in Module2 of the attached project has to be run with the attached FDShapes.tif image.

The macro has extensive comments and can provide additional info on different low-level functions.

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