JPS6432586A - Color picture device - Google Patents
Color picture deviceInfo
- Publication number
- JPS6432586A JPS6432586A JP62189081A JP18908187A JPS6432586A JP S6432586 A JPS6432586 A JP S6432586A JP 62189081 A JP62189081 A JP 62189081A JP 18908187 A JP18908187 A JP 18908187A JP S6432586 A JPS6432586 A JP S6432586A
- Authority
- JP
- Japan
- Prior art keywords
- color
- coefficient
- data
- white balance
- converted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Color Television Image Signal Generators (AREA)
- Processing Of Color Television Signals (AREA)
Abstract
PURPOSE:To adjust white balance by calculating a coefficient for white balance adjustment based on a standard white color by a control calculator and interposing a data converter converting the data by the coefficient between an A/D converter and a memory. CONSTITUTION:A color separation circuit 2 receives a white color composite signal outputted when a referenced standard white color is picked up by a color camera 1 as an input signal and separates it into 3 primary color signals R, G, B. The separated analog signal is converted into a digital signal by A/D converters 3R, 3G, 3B and fetched as they are in memories 5R, 5G, 5B without being converted by data converters 4R, 4G, 4B at first. A control calculator 8, based on the standard white color, calculates the coefficient for white balance and gives an output to the convertors 4R-4B and the data converted by the coefficient is stored in the memories 5R-5B. Thus, the white balance is adjusted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62189081A JPS6432586A (en) | 1987-07-28 | 1987-07-28 | Color picture device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62189081A JPS6432586A (en) | 1987-07-28 | 1987-07-28 | Color picture device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6432586A true JPS6432586A (en) | 1989-02-02 |
Family
ID=16234993
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62189081A Pending JPS6432586A (en) | 1987-07-28 | 1987-07-28 | Color picture device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6432586A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5146323A (en) * | 1988-10-03 | 1992-09-08 | Hitachi, Ltd | Signal processing circuit including a white balance adjusting circuit in a color video printer apparatus |
JPH053570A (en) * | 1991-06-25 | 1993-01-08 | Canon Inc | Image signal processor |
US6417898B1 (en) | 1997-05-15 | 2002-07-09 | Sharp Kabushiki Kaisha | Liquid crystal display device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60154795A (en) * | 1984-01-25 | 1985-08-14 | Sony Corp | Television camera |
JPS60200694A (en) * | 1984-03-26 | 1985-10-11 | Hitachi Ltd | Correction circuit of color difference signal |
-
1987
- 1987-07-28 JP JP62189081A patent/JPS6432586A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60154795A (en) * | 1984-01-25 | 1985-08-14 | Sony Corp | Television camera |
JPS60200694A (en) * | 1984-03-26 | 1985-10-11 | Hitachi Ltd | Correction circuit of color difference signal |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5146323A (en) * | 1988-10-03 | 1992-09-08 | Hitachi, Ltd | Signal processing circuit including a white balance adjusting circuit in a color video printer apparatus |
JPH053570A (en) * | 1991-06-25 | 1993-01-08 | Canon Inc | Image signal processor |
US6417898B1 (en) | 1997-05-15 | 2002-07-09 | Sharp Kabushiki Kaisha | Liquid crystal display device |
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