Facsimile and static presentation processing – Natural color facsimile – Measuring – testing – and calibrating
Patent
1992-11-25
1996-07-02
Rogers, Scott A.
Facsimile and static presentation processing
Natural color facsimile
Measuring, testing, and calibrating
358527, 348602, 348655, H04N 146, H04N 558, H04N 973
Patent
active
055328482
ABSTRACT:
A color printing system includes a central processing unit for generating color image data, a color monitor for displaying color image data generated by the central processing unit and a color temperature sensing device for sensing color temperature of viewing light in which color images displayed on the monitor and color images printed by the printer are viewed. A first light source has a light output intensity controllable by the central processing unit. The central processing unit is adapted to control the intensity of the first light source in accordance with the color temperature sensed by the sensing device so as to match the color temperature sensed by the sensing device to a potential color temperature. Additionally, a second light source may be provided. The second light source has a different color temperature than the first light source and the central processor can adjust the intensity of the first and second light source based on relative color temperatures. The central processing unit is adapted to adjust the color temperature of either or both intensity of the first and second light sources.
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Canon Information & Systems, Inc.
Rogers Scott A.
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