Your photo can't be seen. And even it could be seen, it would be nearly impossible to determine without visual physical examination, from our computer screen.
Before you do anything you need to be 110% certain about this wall. Not only if it's a load bearing wall.
Do you have your home's approved plans? Can you go to the city and have them look it up for you?
If no, call a couple of general contractors to view the wall, assess it and give you their opinions.