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I will (shortly) be going to an archive to do family history research.
They allow digital photography, but put tight constraints on what you're allowed to do
(including no flash, no tripods).
As a pre-test, I have made an image at home of a map, and I deliberately lit it badly, using a single lamp to the side.
My question is; how can I post-correct this?
Clearly, there are plenty of reference-white spots on the map, but how do a make a full size "reference white" image, and how do I use it? And how do I use a reference white image to correct blacks.
The attached image is actually a panorama, stitched together from 3 separate images, which is another technique I'll need to use.
http://i48.photobucket.com/albums/f2...ar33/light.jpg
BugBear
They allow digital photography, but put tight constraints on what you're allowed to do
(including no flash, no tripods).
As a pre-test, I have made an image at home of a map, and I deliberately lit it badly, using a single lamp to the side.
My question is; how can I post-correct this?
Clearly, there are plenty of reference-white spots on the map, but how do a make a full size "reference white" image, and how do I use it? And how do I use a reference white image to correct blacks.
The attached image is actually a panorama, stitched together from 3 separate images, which is another technique I'll need to use.
http://i48.photobucket.com/albums/f2...ar33/light.jpg
BugBear
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