Like i said. Is the pictured stored in internal or external sd. Do you have any picture sync? If external sd just plug it in a pc and try to run app like recuva . If internal sd I have no idea as it cannot be mounted as sd.

There are apps on play store that says it can recover files but from my experience most don't work.

Here is one but it needs root.

https://play.google.com/store/apps/details?...mobrecoverylite