UD100 User Guide Document: UD100-3
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➢
When user selects the edge without [Edge Blend], [Shift] will change image border location with
black background without changing image size and location. It implements [Edge Mask] up to 500
pixels following the final result after geometry alignment.
7.3. [Gamma]: Color correction in edge blending area
➢
Different projectors may have different gamma curves. Different
“Display mode” in the same
projector will also have different gamma curves. Edge blending default gamma curve is 2.2. These
gamma curves will affect the color in edge blending area. The common issue is gray color banding
effect. These issues are more significant in pure color or white back ground display.
➢
[Gamma] function is to adjust the gamma curve in edge blending area for each projector through
independent RGB gamma curve adjustment.
➢
The major reason for banding effect in edge blending area is related to projector color setting and
gamma curve. All projectors shall have the same gamma setting and [Display Mode].
✓
User needs to select right display mode (gamma curve 2.2 is the best gamma value in the
projector setting) and fine tune the color difference among the projectors before edge blending
to minimize the possible banding effect in edge blending region.
✓
Some projectors have [Multiple unit application] menu for user to choose while executing edge
blending function.
✓
Please disable [Dynamic] color function in the projectors. These functions may change
gamma curve based on the content and affect final edge blending image quality.
-
[Shift] is to shift [Edge Blend] location in
[Edge Blend] edge. If the value is set to “-“,
it will uplift the color in the border of edge
blending area.
-
It will execute [Edge Mask] on the edges in
non-overlapped region.
