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

Page 47

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9084-OM (V4.4)

9084 PRODUCT MANUAL

3-21

Operating Instructions

Color and Video Correction Examples Using the 9084

Ideally, this display would essentially result in a waveform showing identical
RGB components corresponding to the grayscale monochrome bar spectrum
being fed to the set monitor. However, as shown in Figure 3-7 with no
correction applied, the waveform monitor shows imbalance between the RGB
channels due to the reasons discussed above. Note the excessive offset, level,
and deviation from an ideal gamma curve for the blue channel.

Figure 3-7 Uncorrected (Uncompensated) Monitor Waveform

Blue level in
excess of 100%

Non-ideal Gamma
curve

Black (Offset) level
negative

FA-3.PNG

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