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94 lines
2.4 KiB
C++
94 lines
2.4 KiB
C++
/**
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* @file Morphology_2.cpp
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* @brief Advanced morphology Transformations sample code
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* @author OpenCV team
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*/
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#include "opencv2/imgproc.hpp"
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#include "opencv2/imgcodecs.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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/// Global variables
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Mat src, dst;
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int morph_elem = 0;
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int morph_size = 0;
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int morph_operator = 0;
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int const max_operator = 4;
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int const max_elem = 2;
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int const max_kernel_size = 21;
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const char* window_name = "Morphology Transformations Demo";
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/** Function Headers */
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void Morphology_Operations( int, void* );
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/**
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* @function main
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*/
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int main( int argc, char** argv )
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{
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//![load]
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CommandLineParser parser( argc, argv, "{@input | baboon.jpg | input image}" );
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src = imread( samples::findFile( parser.get<String>( "@input" ) ), IMREAD_COLOR );
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if (src.empty())
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{
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std::cout << "Could not open or find the image!\n" << std::endl;
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std::cout << "Usage: " << argv[0] << " <Input image>" << std::endl;
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return EXIT_FAILURE;
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}
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//![load]
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//![window]
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namedWindow( window_name, WINDOW_AUTOSIZE ); // Create window
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//![window]
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//![create_trackbar1]
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/// Create Trackbar to select Morphology operation
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createTrackbar("Operator:\n 0: Opening - 1: Closing \n 2: Gradient - 3: Top Hat \n 4: Black Hat", window_name, &morph_operator, max_operator, Morphology_Operations );
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//![create_trackbar1]
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//![create_trackbar2]
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/// Create Trackbar to select kernel type
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createTrackbar( "Element:\n 0: Rect - 1: Cross - 2: Ellipse", window_name,
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&morph_elem, max_elem,
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Morphology_Operations );
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//![create_trackbar2]
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//![create_trackbar3]
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/// Create Trackbar to choose kernel size
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createTrackbar( "Kernel size:\n 2n +1", window_name,
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&morph_size, max_kernel_size,
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Morphology_Operations );
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//![create_trackbar3]
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/// Default start
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Morphology_Operations( 0, 0 );
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waitKey(0);
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return 0;
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}
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//![morphology_operations]
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/**
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* @function Morphology_Operations
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*/
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void Morphology_Operations( int, void* )
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{
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// Since MORPH_X : 2,3,4,5 and 6
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//![operation]
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int operation = morph_operator + 2;
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//![operation]
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Mat element = getStructuringElement( morph_elem, Size( 2*morph_size + 1, 2*morph_size+1 ), Point( morph_size, morph_size ) );
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/// Apply the specified morphology operation
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morphologyEx( src, dst, operation, element );
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imshow( window_name, dst );
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}
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//![morphology_operations]
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