Earlier this week we looked at ways make basic contrast fixes in iPhoto’s histogram. Now that you know a bit about how the histogram works, you can tackle one of the most challenging image problems to ...
Researchers have incorporated ultra-thin optical devices known as metasurfaces into off-the-shelf contact lenses to correct deuteranomaly, a form of red-green color blindness. The new customizable ...
Contact lenses may be useful for restoring vision to people who are short- or long-sighted, but they're less useful at correcting color blindness. Now researchers from the University of Birmingham ...