Section 7
–
Video Input Menu
Copyright 2007-2017 Lumagen, Inc Radiance Pro, Rev 071719
23
Color Decoder
NOTE:
It is recommended that the
display’s Color and Hue to their default values
, and that the
Radiance Pro’s Color and Hue setting also be set to 0. The exception is to correct an error int eh
color decoder in the projector or TV.
Normally not used if the Color-Gamut is calibrated using the Radiance CMS system, unless the source has an
error in its color decoder. Use Radiance internal color-bar pattern, a test pattern generator, or a test disc
test pattern, to set color, Hue, color, and Hue offsets, if necessary. The command is:
MENU
→
Input
→
In Configs
→
[Resolution]
→
[#]
→
Picture
→
Color Decoder
Y/C Delay
Adjust the horizontal Chroma timing in relation to Luma. Range is +/- 1.9375 pixels in 1/16 steps. It is
suggested that you use a Y/C-delay calibration image from a test pattern generator of test disc to calibrate
the Y/C-delay. The C
B
and C
R
channels are adjusted independently. The command is:
MENU
→
Input
→
In Configs
→
[Resolution]
→
[#]
→
Picture
→
YC Delay
CUE Filter
This filter can minimize Chroma issues for sources with a Chroma up-sample error. The command is:
MENU
→
Input
→
In Configs
→
[Resolution]
→
[#]
→
Picture
→
CUE Filter
Input Sizing
Input sizing can be used to compensate for active image size differences between sources.
Note:
The input size command does not affect the output size or position.
Rather, it affects which input pixels are captured for processing.
Use the
Crop TopLeft
command to select the top-left-most active input pixel. Use the
Crop BotRight
command to select the bottom-right-most active pixel. Select the scanline using the
and
arrows, and
the pixel using the
and
arrows. The command is:
MENU
→
Input
→
In Configs
→
[Resolution]
→
[#]
→
Size
→
[Aspect Ratio]
→
(Crop
TopLeft, Crop BotRight)
Vertical Shift
The vertical shift moves the image up and down without changing the
Input Sizing
settings. There are 15
vertical settings that are shared between all input memories. Select the vertical shift setting and then the
shift value. The command is:
MENU
→
Input
→
In Configs
→
[Resolution]
→
[#]
→
Size
→
[Aspect Ratio]
→
Vert Shift
Non-linear Stretch
Non-linear-stretch (NLS) is used to horizontally stretch a 4:3 aspect ratio source to fit a 16:9 aspect-ratio
display, or to stretch a 16:9/1.85 source to fit a 2.35 aspect-ratio display. The image is stretched by a
constant amount in the center section, and by an increasing amount approaching the left and right edges.
This eliminates the black sidebars normally seen when viewing smaller aspect material on a higher aspect
display. To use non-
linear stretch press the “4:3”, “16:9” or “1.85” button
as appropriate for the source
aspect ratio,
and then press the “NLS” button.
The goal is to stretch the image to fill the screen in a way that looks as natural as possible. The Lumagen
NLS command is very flexible and allows the image to be adjusted to user preferences to achieve this goal.
The NLS adjustments are center width, center stretch, top cropping and bottom cropping. The center
section of the image is stretched by a constant ratio from 0% to 24%. The width of the center section can
be set from 15% to 70% of the display width. By programming the center section width and stretch
amount, the amount of non-linear stretch in the left and right sections can be optimized. In addition, the top
and bottom cropping can be set from 0 to 12%. Increasing the amount of cropping reduces the amount of
stretch near the left and right edges of the image. When setting the cropping parameters, check the
satellite/cable-box menu to insure that critical information remains visible.