People with colorblindness, while not significantly impaired in any truly damaging way, miss out on the richness of hues experienced by people with normal vision, and 'Color Binoculars' is an app designed to bridge those experiences. The app, created by Microsoft, uses a smartphone camera to adjust colors in images and correct for colorblindness.
Color Binoculars has settings for the various kinds of colorblindness, and it can correct for each of them. For instance, one of the most common types of colorblindness is red/green colorblindness, in which people have trouble distinguishing between those two colors. Color Binoculars will brighten reds and darken greens to make them more easily identifiable. Further, it will alter hues along these same line, turning red berries among green leaves pink to make them stand out more.
Microsoft's 'Color Binoculars' Uses Smartphones to Correct Vision
References: itunes.apple & theverge