Nano Banana image edits can overcorrect small details
can work well for colorizing old photos and repairing damaged images. Uploading a photo and asking it to create a prompt tailored to that photo often gives strong results.
In one horse photo, the tool repaired crease damage cleanly, but it also made the horse’s forelock about half as long as it was in the original. Asking for the forelock to match the uploaded image caused a new forelock to appear, along with an overly long mane and tail.
Asking it to remove the extra forelock and shorten the mane and tail to match the original then made both far too short. The practical problem is not just the bad edit, but the lack of a place to get clear feedback on what instruction went wrong and how to fix it.
Key points
- can colorize and repair old photos with good results.
- A repaired horse photo lost accuracy in the forelock length.
- A request added unwanted hair and made the mane and tail too long.
- Another correction shortened the mane and tail too much.
- There is a need for practical feedback on prompt problems and fixes.