Edge Blending - Christie Mirage S+/HD/WU User Manual

Section 3: Operation
Step 3: Adjust Light Output in 8 Zones.
1. For each screen, compare the light output of each edge and corner to that of the center. If any of the areas
differ, use the White Uniformity menu to match edges and corners to the center as described below (see
Figure 3-44). Begin with the screen exhibiting the most obvious variations in light output.
• Adjust edge White Uniformity first-note that each edge adjustment also affects the rest of the screen
slightly. Keep all edges just slightly lower than the center light output rather than matching light output
precisely. Otherwise, it may not be possible to brighten the corners (typically the dimmest areas of the
screen) enough, i.e., the best uniformity is a compromise between the brightest and darkest areas of the
screen.
• Adjust corner White Uniformity last-each corner adjustment affects only this quadrant.
• Repeat for each screen.
Step 4: Re-adjust Color Temperature (level of red/green/blue) in 8 Zones.
Return to Step 2 and, if necessary, fine tune the zones so that they all still exhibit a single color temperature.
Canceling Brightness Uniformity
If you do not want to use or apply Brightness Uniformity settings, clear the "Uniformity Enable" check box at
the top of the Brightness Uniformity menu.

3.10.3 Edge Blending

Christie Edge Blending is an innovative set of software functions that can quickly and easily blend
whitelevels along the edges of multiple adjacent projected 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
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.
3-72
Figure 3-44 Match Zones to Center Light Output
Figure 3-45). This area runs along the edge of the
Roadster, Matrix WU, Mirage S+/HD/WU User Manual
Figure 3-45
020-100002-06 Rev. 1 (04-2011)