@BirdGarden: I understand your concerns, as the camera does make colours more vibrant. What I'd suggest is tapping the magic wand symbol in the top right and checking out the available filters, as you should find an option that gives a more natural look to the scene.
In addition to @AndrewL reply, the filters usually are a bit violent, pronounced. There is a rule at the bottom, choose a filter that gives a colder look, you could even try sepia or b&w options, and then use the rule and go down to like 2/10 or whatever you like. Try a few of them and do this until you find what suits you the best.