OpenCV 错误 : Assertion failed (size. width>0 && size.height>0)

Question

我按照官方教程和以下链接编译并安装了 OpenCV 库 opencv-installation

我使用的是官方教程中提供的示例代码using eclipse cdt

#include <cv.h>
#include <highgui.h>

using namespace cv;

int main( int argc, char** argv )
{
  Mat image;
  image = imread( argv[1],1 );

  if( argc != 2 || !image.data )
  {
     printf( "No image data \n" );
     return -1;
  }

   namedWindow( "Display Image", CV_WINDOW_AUTOSIZE );
   imshow( "Display Image", image );

   waitKey(0);

   return 0;
}

编译时出现以下错误:

OpenCV Error: Assertion failed (size.width>0 && size.height>0) in imshow, file /home/hp/apps/opencv-2.4.6.1/modules/highgui/src/window.cpp, line 261
terminate called after throwing an instance of 'cv::Exception'

what(): /home/hp/apps/opencv-2.4.6.1/modules/highgui/src/window.cpp:261: error: (-215) size.width>0 && size.height>0 in function imshow

提前致谢

Answer 1

我有类似的问题。你可以添加类似的代码，也许可以解决它。因为捕获大小导致这个问题

VideoCapture cap;
cap.set(CV_CAP_PROP_FRAME_WIDTH, 640);
cap.set(CV_CAP_PROP_FRAME_HEIGHT, 480); 

cap.read(image);