How to open those tif files?

Thanks for sharing code. It's really helpful for a newcomer.

I can't open those viable or whole tif files by openslide, ASAP, opencv or default viewer. But I find that you use 'skimage.io.imread' function and it works.

I wonder why 'skimage.io.imread' function , rather than other tools, can read the tif image. Could you please explain it?