biagio montesano
11 years ago
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/*M///////////////////////////////////////////////////////////////////////////////////////
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//
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// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
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//
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// By downloading, copying, installing or using the software you agree to this license.
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// If you do not agree to this license, do not download, install,
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// copy or use the software.
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//
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//
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// License Agreement
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// For Open Source Computer Vision Library
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//
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// Copyright (C) 2014, Biagio Montesano, all rights reserved.
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// Third party copyrights are property of their respective owners.
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//
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// Redistribution and use in source and binary forms, with or without modification,
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// are permitted provided that the following conditions are met:
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//
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// * Redistribution's of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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//
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// * Redistribution's in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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//
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// * The name of the copyright holders may not be used to endorse or promote products
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// derived from this software without specific prior written permission.
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//
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// This software is provided by the copyright holders and contributors "as is" and
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// any express or implied warranties, including, but not limited to, the implied
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// warranties of merchantability and fitness for a particular purpose are disclaimed.
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// In no event shall the Intel Corporation or contributors be liable for any direct,
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// indirect, incidental, special, exemplary, or consequential damages
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// (including, but not limited to, procurement of substitute goods or services;
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// loss of use, data, or profits; or business interruption) however caused
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// and on any theory of liability, whether in contract, strict liability,
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// or tort (including negligence or otherwise) arising in any way out of
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// the use of this software, even if advised of the possibility of such damage.
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//
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//M*/
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#include <opencv2/line_descriptor.hpp> |
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#include "opencv2/core/utility.hpp" |
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#include "opencv2/core/private.hpp" |
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#include <opencv2/imgproc.hpp> |
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#include <opencv2/features2d.hpp> |
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#include <opencv2/highgui.hpp> |
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#include <iostream> |
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using namespace cv; |
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using namespace std; |
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static const char* keys = |
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{ "{@image_path | | Image path }" }; |
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static void help() |
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{ |
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cout << "\nThis example shows the functionalities of lines extraction " << "furnished by BinaryDescriptor class\n" |
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<< "Please, run this sample using a command in the form\n" << "./example_line_descriptor_lines_extraction <path_to_input_image>" << endl; |
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} |
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int main( int argc, char** argv ) |
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{ |
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/* get parameters from comand line */ |
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CommandLineParser parser( argc, argv, keys ); |
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String image_path = parser.get<String>( 0 ); |
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if( image_path.empty() ) |
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{ |
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help(); |
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return -1; |
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} |
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/* load image */ |
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cv::Mat imageMat = imread( image_path, 1 ); |
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if( imageMat.data == NULL ) |
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{ |
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std::cout << "Error, image could not be loaded. Please, check its path" << std::endl; |
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return -1; |
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} |
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/* create a random binary mask */ |
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cv::Mat mask = Mat::ones( imageMat.size(), CV_8UC1 ); |
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/* create a pointer to a BinaryDescriptor object with deafult parameters */ |
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Ptr<LSDDetector> bd = LSDDetector::createLSDDetector(); |
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/* create a structure to store extracted lines */ |
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vector<KeyLine> lines; |
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/* extract lines */ |
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cv::Mat output = imageMat.clone(); |
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bd->detect( imageMat, lines, 2, 1, mask ); |
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/* draw lines extracted from octave 0 */ |
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if( output.channels() == 1 ) |
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cvtColor( output, output, COLOR_GRAY2BGR ); |
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for ( size_t i = 0; i < lines.size(); i++ ) |
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{ |
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KeyLine kl = lines[i]; |
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if( kl.octave == 0) |
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{ |
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/* get a random color */ |
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int R = ( rand() % (int) ( 255 + 1 ) ); |
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int G = ( rand() % (int) ( 255 + 1 ) ); |
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int B = ( rand() % (int) ( 255 + 1 ) ); |
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/* get extremes of line */ |
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Point pt1 = Point2f( kl.startPointX, kl.startPointY ); |
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Point pt2 = Point2f( kl.endPointX, kl.endPointY ); |
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/* draw line */ |
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line( output, pt1, pt2, Scalar( B, G, R ), 3 ); |
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} |
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} |
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/* show lines on image */ |
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imshow( "LSD lines", output ); |
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waitKey(); |
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} |
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