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by zajac 4997 days 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.