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 bett

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.