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20 lines
751 B
Markdown
20 lines
751 B
Markdown
# Histogram computation
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Histogram computation capabilities in GIL are demonstrated by the program `tutorial_histogram`, compiled from the sources `example/tutorial_histogram.cpp`.
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## Synopsis
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`tutorial_histogram`
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The program expects to find an image in the JPEG format in the current directory named `input.jpg`, and produces a text file named `out-histogram.txt`, in the current direction, where the histogram has been calculated..
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The program doesn't take any command line arguments.
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## Specific requirements
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### Build requirements
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- A C++ compiler compliant with C++11 or above
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- The JPEG library installed and configured.
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### Execution requirements
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`tutorial_histogram` expects to find an image in the JPEG format in the current directory.
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