Christie CineIPM-2K User Manual page 83

Edge Blending
Cine-IPM 2K User's Manual
020-100164-01 Rev. 1 (01/08)
Canceling Brightness Uniformity
If you do not want to use or apply Brightness Uniformity settings, delete the
checkmark from the "Uniformity Enable" checkbox at the top of the Brightness
Uniformity menu.
Christie Edge Blending is an innovative set of software functions that can quickly and
easily blend the edges of multiple adjacent full screen images to create a single
seamless larger image.
What is a Blend?
In simple terms, a blend appears as a gradient strip
along an edge of a projected image. It is darkest along
the extreme edge of the image, and lightens nearer to
the rest of the image (see right). This area runs along
the edge of the projector's internal DMDs (display
area); it cannot be located on interior pixels.
How Are Blends Used?
In multiple-projector walls, complementary blends
between neighboring images can compensate for the
extra "brightness" or intensity where these edges overlap. By controlling blend width
and other properties, you can achieve uniformity across the group of images. Visible
overlaps will disappear as illustrated below:
Figure 3. 34. Edge Blending Concept
For best results, use the same display device (such as a CP2000) throughout your
display wall. In addition, avoid high-gain screens whenever possible—the optical
performance of such screens demands minimal image offset, thus projectors must be
located very close to one another. Note too that the requisite tiling of the image—
with data repeated along internal edges that will overlap—must be correctly done by
your source.
Flat Blends vs. Warped Blends
It is important to remember
FLAT BLENDS:
that the Cine-IPM 2K's standard edge
blending controls affect the outer edges of
the CP2000's display panel, and that each
blend is consistent along its length (refer
back to Figure 3.33). The standard Edge
Blending menu controls can blend multiple
flat full-panel displays if they have no keystoning or optional warping applied.
OPERATION
Figure 3.33
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