image height and width

edit

Thank you!

Is there a reason why I can't use a pointer for these statements? I get an error message saying that the expression must have a class type (*image is underlined). I'm planning to use this in a function.

Size sz = *image.size(); int imageWidth = sz.width; int imageHeight = sz.height;

@Icetray: (*image).size(); // you need proper braces

but do not keep or pass around pointers to cv::Mat. those are already refcounted smartpointers, and you will inevitably wreck the internal refcounts this way.

Thanks berak! This works perfectly!

Hi berak,

can you explain what you mean by "but do not keep or pass around pointers to cv::Mat. those are already refcounted smartpointers, and you will inevitably wreck the internal refcounts this way."?

I thought it was more efficient to pass your images as pointers?

a Mat header has only 56 bytes. don't be afraid to copy that. using pointers is far too dangerous, as you're playing against the rules. please lookup, how refcounting works.