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# Adaptive Thresholding
Adaptive Thresholding capabilities in GIL are demonstrated by the program `adaptive_threshold`, compiled from the sources `example/adaptive_threshold.cpp`.
## Synopsis
`adaptive_threshold`
The program doesn't take any argument on the command line.
`adaptive_threshold` expects to find an image called `test_adaptive.png` in the current directory, and produces one image for each thresholding method:
- `out-threshold-adaptive-mean.png`
- `out-threshold-adaptive-mean-inv.png`
- `out-threshold-adaptive-gaussian.png`
- `out-threshold-adaptive-gaussian-inv.png`.
## Specific requirements
### Build requirements
- A C++ compiler compliant with C++14 or above
- The PNG library installed and configured.
### Execution requirements
- `adaptive_threshold` expects to find an image called `test_adaptive.png` in the current directory.
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