***
Genesis Microchip Confidential ***
gm5110/20 Preliminary Data Sheet
June 2002
26
C5110-DAT-01C
tables, but rather a manipulation of YUV-channel parameters. Flesh tone adjustment is
available for all inputs.
4.7.2 Color Standardization and sRGB Support
Internet shoppers may be very picky about what color they experience on the display.
gm5110/20 RealColor
TM
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)
. gm5110/20
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
gm5110/20 family devices please refer to the sRGB application brief C5115-APB-02A.
4
4
.
.
8
8
H
H
i
i
g
g
h
h
-
-
Q
Q
u
u
a
a
l
l
i
i
t
t
y
y
S
S
c
c
a
a
l
l
i
i
n
n
g
g
The gm5110/20 zoom 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.
4.8.1 Variable Zoom Scaling
The gm5110/20 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).
4.8.2 Horizontal and Vertical Shrink
A shrink function may be performed on the input data. This is an arbitrary horizontal active
resolution reduction to between (50% + 1 pixel) to 100% of the input. For example, this
allows SXGA 1280 pixels to be displayed as 1024 (XGA).
The gm5110/20 provides an arbitrary vertical shrink down to (50% + 1 line) of the original
image size. Together with the arbitrary horizontal shrink, this allows the gm5110/20 to
capture and display images one VESA standard format larger than the native display
resolution. For example, SXGA may be captured and displayed on an XGA panel.