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參數(shù)資料
| 型號： | GM5125 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | ONPANEL LCD PANEL CONTROLLER |
| 中文描述： | ONPANEL液晶顯示器控制器 |
| 文件頁數(shù)： | 34/58頁 |
| 文件大?。?/td> | 1505K |
| 代理商： | GM5125 |
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***
Genesis Microchip Confidential ***
gm5115/25 Preliminary Data Sheet
June 2002
25
C5115-DAT-01H
4.6.8 Image Boundary Detection
The gm5115/25 performs measurements to determine the image boundary. This information is
used when programming the Active Window and centering the image.
4.6.9 Image Auto Balance
The gm5115/25 performs measurements on the input data that are used to adjust brightness and
contrast.
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TM
The gm5115/25 provides high-quality digital color controls. These consist of a subtractive “black
level” stage, followed by a full 3x3 RGB matrix multiplication stage, followed by an signed
offset stage as shown in Figure 18.
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+/
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Additive
Offset
(Brightness)
3x3 Color
Conversion
Subtractive
Offset
(Black Level)
Red In
Red Out
Green In
Green Out
Blue In
Blue Out
Figure 18.
RealColor
TM
Digital Color Controls
This structure can accommodate all RGB color controls such as black-level (subtractive stage),
contrast (multiplicative stage), and brightness (signed additive offset). In addition, it supports all
YUV color controls including brightness (additive factor applied to Y), contrast (multiplicative
factor applied to Y), hue (rotation of U and V through an angle) and saturation (multiplicative
factor applied to both Y and V).
To provide the highest color purity all mathematical functions use 10 bits of accuracy. The final
result is then dithered to eight or six bits (as required by the LCD panel).
4.7.1 RealColor Flesh tone Adjustment
The human eye is more sensitive to variations of flesh tones than other colors; for example, the
user may not care if the color of grass is modified slightly during image capture and/or display.
However, if skin tones are modified by even a small amount, it is unacceptable. The gm5115/25
features flesh tone adjustment capabilities. This feature is not based on lookup tables, but rather a
manipulation of YUV-channel parameters. Flesh tone adjustment is available for all inputs.
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相關(guān)代理商/技術(shù)參數(shù) |
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