716fe9ad8c
Add public functions threshold_binary and threshold_truncate. Add tests and example. Closes #310
30 lines
1.1 KiB
C++
30 lines
1.1 KiB
C++
//
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// Copyright 2019 Miral Shah <miralshah2211@gmail.com>
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//
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// Use, modification and distribution are subject to the Boost Software License,
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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#include <boost/gil/extension/io/jpeg.hpp>
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#include <boost/gil/image_processing/threshold.hpp>
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using namespace boost::gil;
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int main()
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{
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rgb8_image_t img;
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read_image("test.jpg",img, jpeg_tag{});
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rgb8_image_t img_out(img.dimensions());
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// performing binary threshold on each channel of the image
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// if the pixel value is more than 150 than it will be set to 255 else to 0
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boost::gil::threshold_binary(const_view(img), view(img_out), 150, 255);
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write_view("out-threshold-binary.jpg", view(img_out), jpeg_tag{});
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// if the pixel value is more than 150 than it will be set to 150 else no change
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boost::gil::threshold_truncate(const_view(img), view(img_out), 150, threshold_truncate_mode::threshold);
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write_view("out-threshold-binary_inv.jpg", view(img_out), jpeg_tag{});
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return 0;
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}
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