08.28.2003 12:00 PM
Originally featured on BroadcastEngineering.com
Crystal Vision releases Key Shrink for Safire digital chroma keyer

Crystal Vision has added Key Shrink to its Safire digital chroma keyer, removing the dark band that sometimes appears around foreground objects.

The realism of a chroma key is largely determined by how the keyer handles the boundary surrounding the foreground image. As a result of the processing involved in extracting a key signal from the foreground chrominance, there is an inherent tendency for the key to spread, leaving a dark line at the edges of non-keyed foreground objects.

Key Shrink corrects this problem by allowing a user to move the edges of the key signal by a fraction of a pixel to eliminate the dark band around foreground objects. Key Shrink works in both additive and multiplicative keying.

See Crystal Vision at IBC2003 in Stand 2.201 or visit: www.crystalvision.tv.

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