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STV0974 数据表(PDF) 46 Page - STMicroelectronics

部件名 STV0974
功能描述  Mobile Imaging DSP
PDF  69 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STV0974 数据表(HTML) 46 Page - STMicroelectronics

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STV0974
Functional description
Register group 3
Note:
YCbCr control registers are common for still/live and ViewFinder modes. As a consequence, if
different settings are applied in these modes and if for example still capture is requested from
ViewFinder mode, it is recommended to set a “transfer mode delay” corresponding to 1 frame
minimum, and also to respect a minimum wait of half of a frame prior to changing the YCbCr
settings.
Table 30: Color management [register group 3]
Name
Index
R/W
State
code
Data
type
Format
default
Description
Still / live Gamma
Standard Gain
0xA300
R/W
A
I
RRRR.DDDD
0000.0011
Bit[3:0]: gain for standard Gamma
curve
Still / live Gamma
S-Curve gain
0xA301
R/W
A
M
XXXX.DDDD
DDDD.XXXX
0100.0100
Bit[3:0]: Gain for low S-curve part
Bit[7:4]: Gain for high S-curve part
Still / live Gamma
Misc.
0xA302
R/W
A
M
XRRR.DDDD
DRRR.XXXX
1000.0000
Bit[3:0]: S-curve pedestal
bit [7] = 1 Standard Gamma
bit[7] = 0 S-curve Gamma
Viewfinder
Gamma
Standard Gain
0xA303
R/W
A
M
RRRR.DDDD
0000.0100
Bit[3-0]: Gain for standard Gamma
curve
Viewfinder
Gamma
S-Curve gain
0xA304
R/W
A
M
XXXX.DDDD
DDDD.XXXX
0100.0100
Bit[3-0]: Gain for low S-Curve part
Bit[7-4]: Gain for high S-Curve part
Viewfinder
Gamma Misc.
0xA305
R/W
A
M
XRRR.DDDD
DRRR.XXXX
1000.0000
Bit[3:0]: S-curve pedestal
bit [7] = 1 Standard Gamma
bit [7] = 0 S-curve Gamma
YCbCr Control
Y range
0xA306
R/W
A
I
DDDD.DDDD
1000.0000
Y range value
(contrast enhancement)
YCbCr Control
Y ceiling
0xA307
R/W
A
M
DDDD.XXXX
0001.0000
Bit[7:4]: Ceiling value
YCbCr Control
Y floor
0xA308
R/W
A
M
DDDD.XXXX
0000.0000
Bit[3:0]: Floor value (signed value
in 2’s complement)
YCbCr Control
CbCr saturationa
a. The maximum register value allowed is 144. For higher saturation capabilities, contact ST support.
0xA309
R/W
A
I
DDDD.DDDD
1000.0000
CbCr saturation



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