8a4a1bb018
1. someMatrix.data -> someMatrix.prt() 2. someMatrix.data + someMatrix.step * lineIndex -> someMatrix.ptr( lineIndex ) 3. (SomeType*) someMatrix.data -> someMatrix.ptr<SomeType>() 4. someMatrix.data -> !someMatrix.empty() ( or !someMatrix.data -> someMatrix.empty() ) in logical expressions
53 lines
1.0 KiB
C++
53 lines
1.0 KiB
C++
/**
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* @function EqualizeHist_Demo.cpp
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* @brief Demo code for equalizeHist function
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* @author OpenCV team
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*/
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#include "opencv2/imgcodecs.hpp"
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#include "opencv2/highgui/highgui.hpp"
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#include "opencv2/imgproc/imgproc.hpp"
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#include <iostream>
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#include <stdio.h>
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using namespace cv;
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using namespace std;
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/**
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* @function main
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*/
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int main( int, char** argv )
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{
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Mat src, dst;
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const char* source_window = "Source image";
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const char* equalized_window = "Equalized Image";
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/// Load image
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src = imread( argv[1], 1 );
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if( src.empty() )
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{ cout<<"Usage: ./Histogram_Demo <path_to_image>"<<endl;
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return -1;
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}
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/// Convert to grayscale
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cvtColor( src, src, COLOR_BGR2GRAY );
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/// Apply Histogram Equalization
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equalizeHist( src, dst );
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/// Display results
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namedWindow( source_window, WINDOW_AUTOSIZE );
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namedWindow( equalized_window, WINDOW_AUTOSIZE );
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imshow( source_window, src );
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imshow( equalized_window, dst );
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/// Wait until user exits the program
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waitKey(0);
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return 0;
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}
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