參數(shù)資料
型號: GM5060
廠商: Electronic Theatre Controls, Inc.
英文描述: GRAPHICS PROCESSING IC PROVIDING HIGH QUALITY IMAGES FOR LCD MONITORS
中文描述: 圖形處理芯片提供高品質(zhì)的圖像液晶顯示器
文件頁數(shù): 46/85頁
文件大?。?/td> 1375K
代理商: GM5060
Genesis Microchip
gm5060 / gm5060-H Data Sheet
February 2002
C5060-DAT-01G
38
Input
Output
contrast
brightness
black
Figure 30. Black / Contrast / Brightness Transfer Function
4.8.4 Input Look-up Table
After RGB color adjustment, a LUT may be optionally enabled. The LUT produces 10-bit output
data for each of 256 input locations. There is a separate table for each red, green and blue
channel. Data is written to the input LUT through the host interface. The three channels may be
written independently or simultaneously with the same values.
Although the LUT produces 10-bit output, the FRC/Scaler blocks that follow utilize an 8-bit data
path. Therefore, a dithering function is performed to increase the bit-depth. Both random-type
and ordered-type dithering methods are available.
The primary use for the input LUT is to perform moire cancellation. This is further described in
Section 4.12.2. Please contact Genesis for appropriate software to determining the LUT entries
when implementing this function.
Figure 31. Input LUT and Dithering
RGB
Color
Controls
Input
8:10 LUT
Dither
DITHER_DISABLE
INLUT_BYPASS
RANDOM_EN
FRC/SCALER
RGB Data
from RealColor
TM
Block
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