21 lines
922 B
Markdown
21 lines
922 B
Markdown
# Hessian Feature Detection
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Hessian feature detection capabilities in GIL are demonstrated by the program `hessian`, compiled from the sources `example/hessian.cpp`.
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## Synopsis
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`hessian input.png window-size hessian-threshold output.png`
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- The first parameter must be the full path to an existing image in the PNG format for `hessian` to process
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- The second parameter is the size of the window containing the pixels to analyse and must be an odd number (e.g. 9 for a 3x3 matrix)
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- The third parameter is the hessian threshold used to identify the optimal values
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- The fourth and last parameter is the full path to the output image of `hessian`. The directory will *not* be created and must exist.
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## Specific requirements
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### Build requirements
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- A C++ compiler compliant with C++14 or above
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- The PNG library installed and configured
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### Execution requirements
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- `hessian` has no specific execution requirements.
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