There's images tag, which has as description:
Questions about opening / editing / saving images using image-editing applications.
And then there's pictures with no description.
IMHO:
As far as image-editing goes, we already have tags for image-processing and for specific applications like imagemagick and gimp
Opening and finding images on disk - that can easily fall under files or find.
So what do you think, community ? Do we need this tag these tags?