I am currently facing a problem in a domain which is not mine.
I am using an ESP32-cam and make it take a picture and save it on a microSD. I need to make it crop the taken picture into 5 differents parts. Saddly, I am stuck because the cropped picture I create is like “bugged”.
bugged picture
It may be a format problem or something like that but I really don’t know. If someone can tell me what is my mistake I would be very grateful.

Here is a link to my code on github Github Link

I tried to crop the picture by many ways but, I am not experimented in this language so I am really bad at it