Color and video correction examples using the 9084, Miscellaneous color and video correction examples – Cobalt Digital COMPASS 9084 HD_SD-SDI RGB Color Corrector User Manual

Page 50

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3

Color and Video Correction Examples Using the 9084

3-24

9084 PRODUCT MANUAL

9084-OM (V4.4)

Miscellaneous Color and Video Correction Examples

Table 3-3 provides examples showing and describing various color and video
condition corrections using the 9084.

Note:

Signal generator and waveform monitor used in these examples are
Tektronix

®

models TG700 and WFM 7120, respectively.

Table 3-3

Color and Video Corrections Using the 9084

Condition Observed On Waveform Monitor

Correction Using 9084

Excessive red channel Gamma (as shown below for
SMPTE color bars on vectorscope display)

Using the red channel Gamma control to reduce Gamma
factor, vectorscope display now shows correction with no
knee or curvature at intersection of axes.

Excessive green channel lift/offset (as shown below for
SMPTE color bars on vectorscope display)

Using the green channel Black control to reduce green
channel lift/offset, vectorscope display now shows no
droop along axis.

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