Sunday, October 6, 2013

Improve Image Quality by Upscaling?

Is it possible to improve image resolution or clarity by upscaling?

Conventional Wisdom says that it can't be done.
You can't add information which isn't there in the original!

Or can you?
Here is an example of where upscaling does appear to improve image clarity.
Could this be due to the jpg algorithm which generated the source image?
that jpeg actually is to encode info at a higher resolution than is presented?

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