I don't see any swelling on those caps, but that doesn't mean they're not bad. It'll only cost you a few cents to replace them anyway. I see there are some kits with all the caps you would need on Amazon. Of course you can get them all separately as well, but this makes it easy on you.
https://www.amazon.com/Repair-Samsung-LN46A550-Capacitors-Entire/dp/B008ADD5AG