Method for compensating digital images for light falloff and an apparatus therefor
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United States of America Patent
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Dec 30, 2003
Grant Date -
N/A
app pub date -
Apr 16, 1999
filing date -
Apr 16, 1999
priority date (Note) -
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Abstract
A method for compensation at least one digital image for light falloff. The digital image may be generated for example from a conventional image frame on a film roll. A plurality of pixel values is provided for each of at least one digital image. A light falloff compensation function is applied and according to that a light falloff correction parameter is determined. Both the light falloff compensation function and the light falloff correction parameter are used to generate an individual compensation value for each pixel element. The compensation value is applied to each pixel element. The method is also able to differentiate and correct the images according to light falloff generated by pure lens falloff or a light falloff generated by the lens and the flash falloff.
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