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參數(shù)資料
| 型號： | LR38266 |
| 廠商： | Sharp Corporation |
| 英文描述： | connector |
| 中文描述： | 連接器 |
| 文件頁數(shù)： | 18/20頁 |
| 文件大小： | 92K |
| 代理商： | LR38266 |
18
(6) Set-up Level of Luminance Signal
The set-up level is tunable by address.
(7) Polarity Option and Level Tuning of Luminance
Signal
The polarity of the input signal from the AD
converter can be inverted before filtering.
The DC offset level and the amplitude are tunable
by address.
(8) Masking Luminance Signal
The restricted area in the whole image can be set
by address.
The exposure function and the auto white balance
function can be used only in the restricted area.
(9) Extract of Color Signal Component
Color signal components are extracted by following
processing calculation.
Red = (Mg + Ye) – K
1
(G + Cy)
Blue = (Mg + Cy) – K
2
(G + Ye)
YL = ((Mg + Ye) + (G + Cy) + (Mg + Cy) + (G + Ye))/4
K
1
and K
2
are variable by address.
(10) Digital Filter of Color Signal Component
Red, blue and YL are passed to limit each
bandwidth so as to be half of extracted signals by
low-pass filters.
(11)
Black Level Clamping of Color Signal Component
The black level of red and blue signals can be
tuned by address 15h, 16h, 17h, and 18h.
(12) White Balance
The amplitude of red and blue signals can be tuned
by address 19h, 1Ah, 1Bh, and 1Ch for white
balance situation.
(13) Color Gamma Correction
10-bit input signal of red, blue and YL signals are
converted into an 8-bit signal with gamma curve
defined by 10 straight lines.
The slope and position of every straight line can be
set by address.
(14) Color Matrix Correction
Color rendition can be tuned by address 1Dh and
1Eh under below equation.
R – Y = (R – Y) + K
1
(B – Y)
B – Y = (B – Y) + K
2
(R – Y)
(15) Color Level Adjustment
The amplitude of R – Y and B – Y can be tuned
by address 1Fh and 20h.
(16) Color Level Suppression
A false color signal at both the transient portion of
luminance signal and the high-light portion of
luminance signal can be suppressed by address
2Bh, 2Ch, 2Dh, 2Eh, 30h, 31h, 32h, 33h, 34h and
35h.
(17)
Polarity Option and Level Tuning of Color Signal
The polarity of the color component signal can be
inverted before gamma correction.
The DC offset level and the amplitude are tunable
by address 36h, 37h, 38h and 39h.
(18) NTSC/PAL Color Signal Encoder
R – Y and B – Y color signals are modulated
under NTSC or PAL format.
Modulated clock frequency and TV format are
selected by address 03h, 21h, 22h and 23h.
Line-lock system requires the clock generator
outside LR38266.
(19) Accumulator to Control Exposure
Three kinds of output data below become available
by address A0h, 00h to 3Fh, 60h and 61h.
Average signal in either the whole image or
restricted area.
Maximum signal in either the whole image or
restricted area.
Minimum signal in either the whole image or
restricted area.
LR38266
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