This researcher created an algorithm that removes the water from underwater images

Scientific American:

Why do all the pictures you take underwater look blandly blue-green? The answer has to do with how light travels through water. Derya Akkaynak, an oceangoing engineer, has figured out a way to recover the colorful brilliance of the deep.

If you’ve ever taken underwater photos, you’ll know the results are generally pretty disappointing. This technology could change that.