In simple terms, Computational Photography is using computer processing to produce a single image usually from multiple source images.
We have been using a simple form of Computational Photography since the advent of even modest digital cameras that have algorithms to brighten, darken, straighten,… images. The first time I knew I was using Computational Photography was when a camera “stitched” together several photos into a single panoramic photo.
Modern Computational Photography can be accomplished with:
For example, if you have one image that is taken using a short focal length, objects in the background may be fuzzy. If you have the same image taken using a long focal length, the foreground may be fuzzy. Computer processing, often built right into the camera, can seamlessly put those images together and create a spectacularly clear image in both the foreground and background.
Watch these short videos to understand more about how modern Computational Photography works:
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