53 lines
1.1 KiB
C++
53 lines
1.1 KiB
C++
/**
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* @file LoadSaveImage.cpp
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* @brief Sample code that load an image, modify it and save the new image.
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* @author OpenCV team
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*/
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#include <cv.h>
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#include <highgui.h>
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using namespace cv;
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/**
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* @function main
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* @brief Self-explanatory
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*/
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int main( int argc, char** argv )
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{
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/// Get the name of the file to be loaded
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char* imageName = argv[1];
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/// Create a Mat object
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Mat image;
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/// Load the image using imread
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image = imread( imageName, 1 );
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/// Verify that the image was loaded
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if( argc != 2 || !image.data )
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{
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printf( " No image data \n " );
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return -1;
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}
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/// Change the image to Grayscale
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Mat gray_image;
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cvtColor( image, gray_image, CV_RGB2GRAY );
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/// Save our gray image
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imwrite( "../../images/Gray_Image.png", gray_image );
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/// Create a couple of windows and show our images
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namedWindow( imageName, CV_WINDOW_AUTOSIZE );
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namedWindow( "Gray image", CV_WINDOW_AUTOSIZE );
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imshow( imageName, image );
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imshow( "Gray image", gray_image );
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/// Wait until user finish the application
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waitKey(0);
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return 0;
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}
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