davesrose wrote in post #17097543
That's not true at all. That's like an argument I heard that an upscaled DVD is the same quality as a blu-ray. You're always relying on a computer program to fill in missing pixels of data. Generally, those algorithms make the image look fuzzy if printed large scale. If it's trying to analyze individual pixels, though, it can amplify a pixel of noise.
You're always going to get better detail if you keep to the original resolution or downscale. Upscalling will always be at the whim of the computer to fill in missing pixels.
Again, you are talking about the simplest of upscaling algorithms. There are many different algorithms to choose from. There are products that do some of the best upscaling, and have made millions, like Genuine Fractals. Your background, based on comments, is around very simple "take x and make slightly differently colored y pixels", and that is the most rudimentary of algorithms.
I am not going to argue the point any more, you always have to have the last word and never concede anything. It is a chore to discuss anything with you unfortunately. You seem very intelligent and knowledgeable, but you have to argue every single point laid out by others. That teaches me to expand the replies...