Terminal and input/output characteristic measurement method and calculation apparatus for display device
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United States of America Patent
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Jan 7, 2003
Grant Date -
N/A
app pub date -
Mar 4, 1999
filing date -
May 27, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for creating an ICC profile in a simple manner without using a specialized measuring instrument. A display control unit reads out a dot pattern image from a pattern image data holding unit and a grayscale pattern image containing a plurality of grayscale patches of gradually varying gray scale from a grayscale image data holding unit, and presents the thus readout images for display on a display device. A user selects the grayscale patch having brightness closest to the brightness of the dot pattern image by operating a selection unit. Based on the selection, a gamma coefficient value is calculated by a gamma coefficient value calculation unit, and based on this gamma coefficient value, a profile creation unit modifies the ICC profile held in a common information holding unit and thus creates a customized ICC profile.
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