Claims
- 1. A color reproduction correction method for color representation that corrects color distortion caused when color input video signals using a first combination of three primary colors are reproduced on a color display that has light sources of a second combination of the primary colors with chromaticity values that differ from those of the first combination, the color reproduction correction method correcting at least a part of each color signal among a plurality of color signals of the color input video signals, the color reproduction correction method comprising:
multiplying the color signal in question by specified coefficients of the first combination to produce a mixed color signal; adding the mixed color signal to color signals other than the color signal in question; using mixed colors of the color signal in question and color signals other than the color signal in question in the second combination of the primary color light sources as primary color light sources in the second combination; and determining the specified coefficients of the first combination with the mixed color light sources having coordinates approximately the same as coordinates of the primary color light sources of the first combination in a chromaticity diagram.
- 2. The color reproduction correction method for color representation of claim 1, further comprising multiplying color signals other than the color signal in question by second specified coefficients, and subtracting an amount corresponding to the mixed color signal to be added respectively from each color signal other than the color signal in question.
- 3. The color reproduction correction method for color representation of claim 1, further comprising attenuating the color signal in question before multiplication by the specified coefficients of the first combination, the color signal in question being attenuated according to an attenuation ratio.
- 4. The color reproduction correction method for color representation of claim 2, further comprising attenuating color signals other than the color signal in question using an amplification ratio for color signals other than the color signal in question when the specified coefficients of the first combination are negative and that of the second combination are 1 or more.
- 5. The color reproduction correction method for color representation of claim 4, further comprising storing and outputting selectively a plurality of combinations of the first specified coefficients and the second specified coefficients, with said attenuating, said multiplying the color signal in question, and said multiplying color signals other than the color signal in question using the first specified coefficients and the second specified coefficients that have been stored.
- 6. The color reproduction correction method for color representation of claim 1, further comprising performing reverse Γ correction on the color input video signals.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2000-229714 |
Jul 2000 |
JP |
|
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is continuation of application Ser. No. 09/878,335 filed Jun. 12, 2001, which is now allowed.
Continuations (1)
|
Number |
Date |
Country |
Parent |
09878335 |
Jun 2001 |
US |
Child |
10860580 |
Jun 2004 |
US |