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Encore Presentation System • User’s Guide • Rev 04 101
3. Hardware Installation
Program and Source Link Connections
• Edge Feathering
The overlapping image data in the blend region must be edge-feathered to
support a seamless optical blend. The transfer function must be programmable to
support blend regions of different widths and adjust to different video
characteristics. A typical blend function is illustrated below.
Figure 3-12. Typical Blend Function
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Accurate projector setup is essential for creating seamless images. Please note the
following important guidelines:
• The projectors must be precisely aligned to overlap the adjacent blending regions.
• The brightness, contrast and color balance of the projectors must be adjusted to
provide a uniform appearance across the entire screen.
• Custom test patterns and an alignment procedure are used to simplify this
process and provide an optimal result.
• Mixing and matching projectors is not recommended as it makes the adjustment
process much more difficult.
Blend Region
Image Intensity
for Image 1
Image Intensity
for Image 2