I believe OpenCV should handle most universal cases and "multipage" images case is not one of this. Also it is TIFF only (and perhaps animated GIFs). Image by definition is not multipage (see wiki).
For sequence of images we have VideoCapture/VideoWriter interface, so it is better to deprecate existed imreadmulti API and move multipage TIFF stuff there.

/cc @vpisarev
see #8511

actually, I like how it's handled. Without introducing extra function we added extra functionality. Of course, it needs to be properly documented. But the same technique can be used even for animated gifs

👍

Hi all,
I am fairly new to opencv and am having trouble finding this function.
Could anyone please tell me how to write a vector<cv::Mat> -- where each Mat is a Tiff image -- to one stacked Tiff file?
An example would be much appreciated.

@rounakskm Although this place is not for questions and answers (please use answers.opencv.org) I can help you as an exception. You can find an example of usage here