The Best Tech Newsletter Anywhere

Join 250,000 subscribers and get a daily digest of news, geek trivia, and our feature articles.

What Is Noise Reduction in Digital Images?

The digital sensor in your phone or camera is made from millions of small photosites. Each photosite corresponds to one pixel in the final image. When light hits a photosite, it creates an electric charge. The more light tha...
How-To Geek is where you turn when you want experts to explain technology. Since we launched in 2006, our articles have been read more than 1 billion times. Want to know more?