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Originally Posted by fenwick16
Thanks for the information. I wonder if pictures were stitched together many decades ago, or is this new technology related to digitally photography?
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I have seen old photos stitched together from the film days but they were not very successful. It is mostly a digital photography thing. The input images are modified and completely resampled to produce a resulting image that is much better than you would get just by cutting and pasting them together.
Using similar techniques you can do things like change the perspective of the photo you took. So you could start with a normal lens perspective (lines are bent, objects farther away look smaller) and then generate an orthographic pespective that looks like something from an architectural rendering or video game (lines are straight, objects farther away are not smaller).