Viewer for huge images under linux (>100 MP color images)

I have a lot of 50-100 MP colour images that I would like to view on linux.

For example, 10000x17000 size is typical, but most image viewers will fail with out-of-memory.

The file format is png or jpg.

What I want is the ability to view such image in part and in whole, with the ability to scroll around the image. Low memory consumption, so no full image unpacked into bitmap in memory.