You can use many photo apps to add various photo effects on your photos. But if you want an innovative way to highlight something in your photos, the following camera app SplashCam may be more suitable for you.
SplashCam is an easy-to-use, creative camera app developed by PoisontLabs, and designed for iPhone and iPod touch. The iPhone app features ultra simple and easy-to-use user interface. All you need to do is to activate the camera app, and adjust the slider on the right of the screen in order to increase or decrease the colors that need to reserve in your capture, while the droplet icon at lower right corner allows you to select favorite color between red, green, yellow and blue. After capturing a photo, you can also share it with friends via Facebook or Twitter, or open it with Instagram.
SplashCam with a size 4.2 MB is compatible with iPhone, iPod touch and iPad running iOS 5.0 or later. The iPhone app is free for a limited time at present. If you’re interested, jump to App Store for more details.