Well, the TIFF format supports having a thumbnail in the file. I think it also
supports muliple layers, and definitely supports file compression. I don't know
if it supports multiple resolutions, though.
Many graphics viewers already support TIFF files.
On February 25, 2022 5:19:16 PM HST,
Is there a file format that is better than ordinary formats for the result
of combining photos with different resolutions?
I want to combine two photos, where one is a higher resolution image of the
most interesting feature in another. When viewing on a computer, I want to
be able to zoom in