Nnnnsic wrote:Vodka wrote:As jamesw mentioned, I'm still wondering how they could produce a large high quality print from an image with a resolution of 1600 pixels on the long side.
Through interpolation and grain usage, I've been able to push several 2 megapixel images -- that's 1600 width -- to 24 x 30 inches. Big enough?
i am still not convinced. a few details missing...
i am guessing the 2mp images you were using were straight out of camera, right? even if they were jpgs out of camera (which they probably were), we are talking some pretty high quality 2mp images... or at least in the top echelons of jpeg quality.
so if your putting images up, straight out of camera, at 2mp / 1600 on the long side, well yeah, i guess you are asking for trouble.
but i assume, the person in question hasn't put up 2mp straight out of camera. they are likely to recieve at least some jpeg compression, and most likely, they have lost a reasonable amount of detail and contain at least some artifacts...
but back to my initial point (im not sure where the 1600px on the long side came from, maybe that is what _rebekka used...)
if you are posting up images between 100-200k, there should be no way that these can be used for anything other than web. if they get blown up, they will look disgusting, full of jpeg artifacts...
but i guess this whole thing is seriously an exercise in common sense. if you have a photo that you think is worth $, then dont post up high res images with little compression. its common sense...