UM:SMPTE CGR Colour Scaling

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Video SMPTE / Full Range Colour Scaling

This section describes Video SMPTE and Full Range (CGR) colour scaling modes.

Using Video SMPTE video bars (64-940 or 0-100%), we will consider the SDI signal as it passes through the system when using the two modes Video SMPTE and Full Range.

app-colour-scaling

These examples will use YCrCb 4:2:2 SDI signals.

Full Range mode does not scale RGB 4:4:4 signals unless you set the general.prefs option :

scale444 true

Capture
Linear (Video SMPTE) Mode

COLOUR-SCALING-LINEAR-SMPTE-CAPTURE.png

Linear (Full Range) Mode

COLOUR-SCALING-LINEAR-CGR-CAPTURE.png

Monitoring / Layoff
Linear (Video SMPTE) Mode

COLOUR-SCALING-LINEAR-SMPTE-LAYOFF.png

Linear (Full Range) Mode

COLOUR-SCALING-LINEAR-CGR-LAYOFF.png


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