Specifications

C2-1000 SERIES OPERATION MANUAL
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11 EDGE-BLENDING SETUP
11.1 Introduction
Edge-blending is a method whereby two or more video/data projectors are used
together with part of their images overlapping, thereby creating a wider (or taller)
display more suitable for showing wide-screen video images. The term edge-
blending relates to the fact that the overlap needs to be carefully handled to prevent
the overlap causing image brightness problems.
This guide is intended to summarise how to setup such projectors when used with a
suitable number of TV One’s CORIO®2 scaling engines. The C2-7000 series are
dual processors and therefore require only a single unit to perform both tasks,
whereas other units will generally require two units to be used together, with a
distribution amplifier on the input so that both units receive an identical video source.
Because the two overlapping areas will create a brighter than normal image,
‘blending’ is performed on the edges to allow seamless merging of the images
together. The ‘blend’ is basically an S-shaped curve that is applied to gradually
reduce the brightness of the image at the edge, so that they can overlap properly:
Image 1 Image 2
Basic method of overlapping two projection images to create a larger one.