CROPPING
https://www.youtube.com/watch?v=3gxcIn8L__w
SHARPENING
https://www.youtube.com/watch?v=D36q0LzkUW8
CLONING AND HEALING
https://www.youtube.com/watch?v=aC3eyz7evBo
CONTENT AWARE FILL
https://www.youtube.com/watch?v=VvIF0eOg25k
1. COLOR BALANCE
https://www.youtube.com/watch?v=5YDsdIo4MX4
1. Shadow & highlight
https://www.youtube.com/watch?v=2nQoCSb6k9Q