Comments (1)
To use GetBackgroundImage
, probably you should create a destination Mat explicitly.
Mat dst = new Mat(src.Size, MatType.CV_8UC3);
mog2.GetBackgroundImage(dst);
getBackgroundImage
does not allocate memory region of dst. (in other words, it does not call OutputArray::create
.)
void BackgroundSubtractorMOG2::getBackgroundImage(OutputArray backgroundImage) const
{
int nchannels = CV_MAT_CN(frameType);
CV_Assert( nchannels == 3 );
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