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在捕获两帧的差异时，我遇到了一个错误：

for(;;)
{   
    colourImage = cvQueryFrame(input);
    diff=cvCloneImage(colourImage);
    colourImage=cvQueryFrame(input);
    cvAbsDiff(colourImage,diff,subtract);
    cvCvtColor(subtract,greyImage,CV_RGB2GRAY);
    cvShowImage("bg subtracted ",greyImage);
    cvThreshold(greyImage, greyImage, 70, 255, CV_THRESH_BINARY);
    cvDilate(greyImage, greyImage, 0, 18);
    cvErode(greyImage, greyImage, 0, 10);
    cvShowImage("final",greyImage);
    cvWaitKey(33);
    :
    followed to contour extraction.
}

显示“最终”窗口后，程序终止而不进入轮廓部分。显示以下错误：

    OpenCV Error: Assertion failed (src1.size == dst.size && src1.type() == dst.type()) in cvAbsDiff, file /home/ukri/src/OpenCV-2.4.2/modules/core/src/arithm.cpp, line 2786,terminate called after throwing an instance of 'cv::Exception' , what():  /home/ukri/src/OpenCV-2.4.2/modules/core/src/arithm.cpp:2786: error: (-215) src1.size == dst.size && src1.type() == dst.type() in function cvAbsDiff.AbortedOpenCV Error: Assertion failed (src1.size == dst.size && src1.type() == dst.type()) in cvAbsDiff, file /home/ukri/src/OpenCV-2.4.2/modules/core/src/arithm.cpp, line 2786terminate called after throwing an instance of 'cv::Exception'  what():  /home/ukri/src/OpenCV-2.4.2/modules/core/src/arithm.cpp:2786: error: (-215) src1.size == dst.size && src1.type() == dst.type() in function cvAbsDiff.Aborted

我制作了 colourImage 、 diff 和减去相同的图像类型。错误仍然不断重复。

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