add norm image/volume

[Borda]

Before submitting

• [x] Was this discussed/approved via a Github issue? (no need for typos and docs improvements)
• [x] Did you make sure to update the docs?
• [x] Did you write any new necessary tests?

What does this PR do?

Fixes # (issue).

PR review

Anyone in the community is free to review the PR once the tests have passed. If we didn't discuss your PR in Github issues there's a high chance it will not be merged.

Did you have fun?

Make sure you had fun coding 🙃

[codecov[bot]]

Codecov Report

Merging #4 (b4a905f) into main (717fe19) will decrease coverage by 0%. The diff coverage is 86%.

@@        Coverage Diff         @@
##           main    #4   +/-   ##
==================================
- Coverage    87%   87%   -0%     
==================================
  Files         5     5           
  Lines       414   441   +27     
==================================
+ Hits        359   382   +23     
- Misses       55    59    +4