发明名称 |
Method and apparatus for setting the color balance of a color display device |
摘要 |
Apparatus for setting the color point of a color display device comprises a video signal generator for generating an image on the display device and a color analyzer for measuring the chromaticity of the image to produce digital coordinates corresponding to the color point of the image on a chromaticity reference chart. The apparatus further comprises a computer system connected to the color analyzer. The computer system includes interface means for reading the digital coordinates from the color analyzer, display means for displaying a cursor at a point corresponding to the coordinates within a graphical representation of the reference chart, and processor means for moving the cursor within the graphical representation in response to a change in the coordinates read from the color analyzer. The apparatus advantageously permits rapid adjustment of the color point of a display device to a desired value with a high level of measurement repeatability. Any recalibration of the apparatus can be performed by adjusting a set of digital values stored in the computer system.
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申请公布号 |
US5311294(A) |
申请公布日期 |
1994.05.10 |
申请号 |
US19920916242 |
申请日期 |
1992.07.17 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
CROMER, CAMPBELL;KNOX, RICHARD I. |
分类号 |
H04N9/73;H04N17/04;(IPC1-7):H04N9/73;H04N17/02 |
主分类号 |
H04N9/73 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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