OpenCV错误：断言失败（size.width> 0&& size.height> 0） [英] OpenCV Error: Assertion failed (size.width>0 && size.height>0)

问题描述

我按照官方教程以及以下链接 opencv-installation编译并安装了OpenCV库。

我使用eclipse cdt使用了官方教程中提供的示例代码

  #include< cv.h> 
 #include< highgui.h> 
 
使用命名空间cv; 
 
 int main（int argc，char ** argv）
 {
 Mat图像； 
 image = imread（argv [1]，1）; 
 
 if（argc！= 2 ||！image.data）
 {
 printf（无图像数据\n）; 
返回-1; 
} 
 
 namedWindow（ Display Image，CV_WINDOW_AUTOSIZE）; 
 imshow（ Display Image，image）; 
 
 waitKey（0）; 
 
返回0; 
} 
  

编译后出现以下错误：

  OpenCV错误：在imshow文件/ home / hp / apps / opencv-中断言失败（size.width> 0&&& amp;& amp; amp; amp;& amp; amp; amp; amp; amp; amp; amp; amp; amp; amp; amp; amp; amp; quot;容量> 0） 2.4.6.1/modules/highgui/src/window.cpp，第261行
在抛出'cv :: Exception'实例后终止终止
 
 what（）：/ home / hp / apps / opencv-2.4.6.1 / modules / highgui / src / window.cpp：261：错误：（-215）size.width> 0&&函数imsize中的size.height> 0表示
  

预先感谢

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

I compiled and installed the OpenCV libraries as per the official tutorial as well as the following link opencv-installation

I used the sample code provided in the official tutorial 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;
}

Upon compiling i get the following error:

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

Thanks in advance

解决方案

I had similar problem .You can add similar this code, maybe solve it. Because capture size cause this problem

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

cap.read(image);

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