1) Sounds like your TV. Check for any processing or setting that may be introducing this. For games, you really want to turn off everything that the TV may be trying to do to the signal.What is the deal with the PS4 version of this game? The game looks so washed out when i'm not moving the camera. If I slowly move the camera the colors become more vibrant.
When I stop moving the camera, its like the color drains out a bit.
Also, is there any way to turn off the mini-map indicators showing you EXACTLY where treasures / etc. are? What is the point of exploring if you are literally told where to go.
2) There's a HUD section of the options that lets you turn off individual things. There's quite a few options, that may be one of them. I think Far Cry 3 (where they borrowed that UI element from) had options to turn it off.