Progressbar works differently than expected in batch mode

[andreped]

I just tried running inference in batch mode using the two images in the test data using the BACH model.

What happens is that a progress bar shows. All good. However, the progressbar seems to work a little differently than assumed.

What happens is that it iterates up to 50%, patch-by-patch, before it goes to the next image, and continues to 100%.

At least the user has verbose for both images, but there is no information on how many images it has iterated through, unless you do the math yourself.

I would think two progressbars here make more sense and is more user friendly:

1. showing which image it is currently processing
2. for the current image, how far has the patch processing come