Retina Revolution - smaller images with better quality 14 years ago
Smart. It now sems like it should have been obvious all along.
You want to reduce the size of an image file from X kB down to y kB. Which method will give better-looking results?
1. Dumb, across-the-board by-two resolution reduction? 2. Smart, perceptually-tuned jpeg compression?
We probably should have been using this all along. That we can also benefit from the extra resolution thanks to touch interfaces and high-dpi displays is icing.