OpenCV Error: Assertion failed

asked 2016-02-02 02:27:44 -0600

yuyue62
1 ●1 ●1 ●1

OpenCV Error: Assertion failed (size.width>0 && size.height>0) in cv::imshow, fi le D:\opencv\sources\modules\highgui\src\window.cpp, line 269

The code is:

But I also tried cv::Mat patternImage = cv::imread("F:\opencv - Copy (2)\Pattern.jpg"); and cv::Mat patternImage = cv::imread("F:/opencv - Copy (2)/Pattern.jpg");

But the error is always the same.

In another computer I use vs2010 and opencv 2.32 this error does not exsit. But in this computer I use vs2013 and opencv 2.49 with opengl. I meet this error. Can anybody help me please. Thanks a lot.

Add: strange thing is the same code can run if I create another project, but when it added to my current project, it doesn't work.

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answered 2016-02-02 02:35:03 -0600

berak
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updated 2016-02-02 02:36:43 -0600

please add a check after reading:

 if (a.empty())
 {
       cerr << "image was not read !" << endl;
       return 1;
 }

also, check your linker settings. make sure you're using debug opencv libs with debug build and release libs with release strictly

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Thanks a lot. I check my libs and found the problem!

yuyue62 ( 2016-02-02 03:00:18 -0600 )edit

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Asked: 2016-02-02 02:10:21 -0600

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Last updated: Feb 02 '16

OpenCV Error: Assertion failed edit