uni/ccv/sheet1/opencv/loadModifySaveImage.cpp

36 lines
596 B
C++

//
// Created by jim on 4/7/17.
//
#include <opencv2/opencv.hpp>
using namespace cv;
int main( int argc, char** argv )
{
char* imageName = argv[1];
Mat image;
image = imread( imageName, 1 );
if( argc != 2 || !image.data )
{
printf( " No image data \n " );
return -1;
}
Mat gray_image;
cvtColor( image, gray_image, CV_BGR2GRAY );
imwrite( "Gray_Image.jpg", gray_image );
namedWindow( imageName, CV_WINDOW_NORMAL );
namedWindow( "Gray image", CV_WINDOW_NORMAL);
imshow( imageName, image );
imshow( "Gray image", gray_image );
waitKey(0);
return 0;
}