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參數(shù)資料
| 型號： | GM2125 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | ANALOG INTER FACE XGA/SXGA ONPANEL LCD PANEL CONTROLLER |
| 中文描述： | 模擬國際米蘭的XGA / SXGA ONPANEL液晶顯示器控制器 |
| 文件頁數(shù)： | 30/54頁 |
| 文件大?。?/td> | 1339K |
| 代理商： | GM2125 |
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Genesis Microchip Confidential ***
gm2115/25 Preliminary Data Sheet
June 2002
28
C2115-DAT-01B
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).
4.6.1 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
gm2115/25 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.
4.6.2 Color Standardization and sRGB Support
Internet shoppers may be very picky about what color they experience on the display.
gm2115/25 RealColor digital color controls can be used to make the color response of an
LCD monitor compliant with standard color definitions, such as sRGB. sRGB is a standard
for color exchange proposed by Microsoft and HP (see
www.srgb.com)
. gm2115/25
RealColor controls can be used to make LCD monitors sRGB compliant, even if the native
response of the LCD panel itself is not. For more information on sRGB compliance using
gm5115/25 family devices please refer to the sRGB application brief C5115-APB-02A.
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The gm2115/25 zoom/shrink scaler uses an adaptive scaling technique proprietary to Genesis
Microchip Inc., and provides high quality scaling of real time video and graphics images. An
input field/frame is scalable in both the vertical and horizontal dimensions.
Interlaced fields may be spatially de-interlaced by vertically scaling and repositioning the
input fields to align with the output display’s pixel map.
4.7.1 Variable Zoom Scaling
The gm2115/25 scaling filter can combine its advanced scaling with a pixel-replication type
scaling function. This is useful for improving the sharpness and definition of graphics when
scaling at high zoom factors (such as VGA to XGA).
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