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gil/example/affine.md
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# Affine transformation
Affine transformation capabilities in GIL are demonstrated by the program `affine`, compiled from the sources `example/affine.cpp`.
## Synopsis
`affine`
The program doesn't take any argument on the command line.
`affine` expects to find an image called `test.jpg` in the current directory, and produces an image in return, where the transformations have been applied: `out-affine.jpg`
## Specific requirements
### Build requirements
- A C++ compiler compliant with C++14 or above
- The JPEG library installed and configured.
### Execution requirements
- `affine` expects to find an image called `test.jpg` in the current directory.