Systems and methods to determine a contrast and a brightness adjusted system tone reproduction curve
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United States of America Patent
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Jun 22, 2004
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N/A
app pub date -
Feb 25, 2000
filing date -
Feb 25, 2000
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Abstract
Contrast and brightness adjustments can be made to a system tone reproduction curve. These contrast and brightness adjustments can be made, for example, by user, via a user input device, or alternatively, automatically detected, based on an image analysis routine. By determining one or more generic tone reproduction curves, and interpolating these tone reproduction curves with the system tone reproduction curve, a new, adjusted tone reproduction curve is produced. This allows for a determination of the adjusted system tone reproduction curve as opposed to calculating and restoring the families of system tone reproduction curves adjusted for all the possible combinations of contrast and brightness.
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