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Computer Correction Of Images.

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Posted by Robert May on July 23, 2004 17:21:50 UTC

Computer correction of errors in the optical system can be done. You need to know where the light goes when it goes through the optical path and then reverse that in the program. This works decently well for point images but tends to fail when extended images are worked on. The early Hubble photos (before the first servicing mission) all had this correction done on them.
I'll note tho that the process quickly fails when the image is highly distorted as it becomes ever more difficult to regather the light back to the point where it came from.
I also wish you great luck in making a mirror via the spincasting method as many have tried before and haven't succeeded.
Some have succeeded in casting mirrors via a master mold but then you do all the work in reverse and finally pull the mirror off of the mold which is good when you are making many but for only one, it is more work than it is worth.

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