Doug Johnson Productions

Scope guide · Signal investigation

Video Level / Gamut

Connect native-code, RGB-range and target-gamut excursions to visible regions of the picture.

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Learn & Reference / Scope library / Video Level / Gamut

Which pixels are behind the warning?

Add this view from Add scope > Video Level / Gamut, then choose the input you want to inspect. Use the pane's i button for its in-app reading guide.

Read this example.

Fresh synthetic PQ athletics-stadium example with Video Level / Gamut upper right and native inspection below.
Fresh synthetic PQ athletics-stadium example with Video Level / Gamut upper right and native inspection below. Click the image for a larger view.
  1. The upper-right contextual image marks excursions. Read its legend for native-code, RGB-range and gamut categories.
  2. The colored uniforms and stadium lights provide useful regions to investigate.
  3. The inspector below supplies native values and a scanline to explain a highlighted region.

Try it yourself.

  1. Open the sunlit-interior scene beside Picture.
  2. Choose the intended range and target gamut, then inspect marks and counts.
  3. Follow a region in Line / Pixel Inspector and check source interpretation.

Useful controls.

  • Range and gamut settings define the checks.
  • The preview retains spatial context around highlighted samples.
  • RGB min/max retains measured values below 0% and above 100%.

Interpret results against the received representation and intended delivery. Decoding, conversion and metadata can affect measured values.