Opencv Android and ios to apply colors on wall - 29/12/2022 04:05 EST

We have a basic android project setup with opencv where user can tap on wall and using canny edge and floodfill color or textures is applied. We require someone who can help achieve below tasks

Allowing color change multiple times on taps
Undo action to revert image to original
Apply preprocessing steps to enhance the results using opencv.

Reference taken from here

https://github.com/mazen930/PaitnMyWall/blob/master/app/src/main/java/com/example/paitnmywall/MainActivity.java