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108 lines
2.4 KiB
C++
108 lines
2.4 KiB
C++
/**
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* file Smoothing.cpp
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* brief Sample code for simple filters
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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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using namespace std;
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using namespace cv;
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/// Global Variables
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int DELAY_CAPTION = 1500;
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int DELAY_BLUR = 100;
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int MAX_KERNEL_LENGTH = 31;
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Mat src; Mat dst;
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char window_name[] = "Smoothing Demo";
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/// Function headers
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int display_caption( const char* caption );
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int display_dst( int delay );
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/**
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* function main
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*/
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int main( void )
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{
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namedWindow( window_name, WINDOW_AUTOSIZE );
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/// Load the source image
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src = imread( "../data/lena.jpg", IMREAD_COLOR );
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if( display_caption( "Original Image" ) != 0 ) { return 0; }
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dst = src.clone();
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if( display_dst( DELAY_CAPTION ) != 0 ) { return 0; }
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/// Applying Homogeneous blur
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if( display_caption( "Homogeneous Blur" ) != 0 ) { return 0; }
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for ( int i = 1; i < MAX_KERNEL_LENGTH; i = i + 2 )
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{ blur( src, dst, Size( i, i ), Point(-1,-1) );
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if( display_dst( DELAY_BLUR ) != 0 ) { return 0; } }
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/// Applying Gaussian blur
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if( display_caption( "Gaussian Blur" ) != 0 ) { return 0; }
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for ( int i = 1; i < MAX_KERNEL_LENGTH; i = i + 2 )
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{ GaussianBlur( src, dst, Size( i, i ), 0, 0 );
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if( display_dst( DELAY_BLUR ) != 0 ) { return 0; } }
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/// Applying Median blur
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if( display_caption( "Median Blur" ) != 0 ) { return 0; }
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for ( int i = 1; i < MAX_KERNEL_LENGTH; i = i + 2 )
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{ medianBlur ( src, dst, i );
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if( display_dst( DELAY_BLUR ) != 0 ) { return 0; } }
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/// Applying Bilateral Filter
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if( display_caption( "Bilateral Blur" ) != 0 ) { return 0; }
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for ( int i = 1; i < MAX_KERNEL_LENGTH; i = i + 2 )
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{ bilateralFilter ( src, dst, i, i*2, i/2 );
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if( display_dst( DELAY_BLUR ) != 0 ) { return 0; } }
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/// Wait until user press a key
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display_caption( "End: Press a key!" );
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waitKey(0);
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return 0;
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}
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/**
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* @function display_caption
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*/
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int display_caption( const char* caption )
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{
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dst = Mat::zeros( src.size(), src.type() );
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putText( dst, caption,
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Point( src.cols/4, src.rows/2),
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FONT_HERSHEY_COMPLEX, 1, Scalar(255, 255, 255) );
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imshow( window_name, dst );
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int c = waitKey( DELAY_CAPTION );
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if( c >= 0 ) { return -1; }
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return 0;
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}
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/**
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* @function display_dst
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*/
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int display_dst( int delay )
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{
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imshow( window_name, dst );
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int c = waitKey ( delay );
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if( c >= 0 ) { return -1; }
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return 0;
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}
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