參數(shù)資料
型號(hào): HD49801FB
廠商: Electronic Theatre Controls, Inc.
元件分類: 數(shù)字信號(hào)處理
英文描述: Digital Signal Processing IC for CCD Cameras
中文描述: 數(shù)字信號(hào)處理集成電路CCD相機(jī)
文件頁數(shù): 20/43頁
文件大小: 185K
代理商: HD49801FB
State Data A10 (1 to 4):
Y, R, G, B setup
This data determines the black color when black objects are imaged, and the color reproduction.
State data A10: Y, R, G, B setup
1: Y setup
D7
×
2
–4
+ D6
×
2
–5
+ D5
×
2
–6
+ D4
×
2
–7
+ D3
×
2
–8
+ D2
×
2
–9
+ D1
×
2
–10
Note: The Y setup is the initial state Y level minus the value calculated above.
2 to 4: R, G, B setup
–D9
×
2
–4
+ D8
×
2
–5
+ D7
×
2
–6
+ D6
×
2
–7
+ D5
×
2
–8
+ D4
×
2
–9
+ D3
×
2
–10
+ D2
×
2
–11
+ D1
×
2
–12
Note: D9 is the sign bit.
This is a two’s complement value.
Notes on setup level adjustment
Adjust the black level after setting the RGB matrix.
The iris detection block can be used to adjust the black level. When a color difference signal is input to
the iris detection block the difference with the setup target value for the specified area can be detected.
Processing this detection output allows, for example, the black level to be adjusted by adjusting the R,
G, B setup levels.
The color difference signal is input to the iris detection block using the following method.
20
HD49801FB
HD49801FB
D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15
Data
Address H
Address
1
1
0
0
1
0
0
D1 D2 D3 D4 D5 D6 D7
Y setup
2
1
0
0
1
1
0
D1
D3 D4 D5 D6 D7 D8 D9
B setup
3
1
0
0
1
0
1
G setup
D2
D1
D3 D4 D5 D6 D7 D8 D9
D2
4
1
0
0
1
1
1
R setup
D1
D3 D4 D5 D6 D7 D8 D9
D2
0
1
1
1
D1 D2 D3 D4
Address L
Data D9
State data A13 to A15
High
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