Zebra patterning
Not to be confused with Zebra striping (disambiguation).
Zebra patterning is a feature found on some prosumer and most professional video cameras to aid in correct exposure. When enabled, areas of the image over a certain threshold are filled with a striped or cross-hatch pattern. Often, two thresholds are available: 70% and 100%. The former is useful for correctly exposing skin tones, while the latter is used to ensure overall scene exposure is correct.
The unofficial CHDK custom firmware supports zebra for certain Canon PowerShot digital cameras.
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