Blanking Detection
Blanking Detection finds black borders around active picture content (letterboxing and pillarboxing) and can also handle slightly rotated content.
What It Detects
Top, bottom, left, and right blanking depth
Rotated blanking patterns (for example, corner triangles)
Optional overlay warnings directly in the viewer
Where to Enable It
Open the QC panel.
Enable Blanking Detection.
Adjust margins and thresholds as needed.
Settings
Detection Margins
Set how far from each edge OmniScope should search for blanking.
Threshold Mode
Auto
Most workflows
Full
Full-range signals
Video
Video-range signals
Custom
Manual threshold tuning
In Custom mode, set R/G/B thresholds manually.
Warning Color
Set the overlay color used when blanking is detected.
Results and Feedback
Overlay is drawn in the source viewer when blanking is detected.
QC status shows active detections in real time.
Rotation information is shown when rotated blanking is detected.
Events are available in QC timeline workflows.
Aspect Ratio Awareness
Blanking detection runs after input aspect-ratio handling, so letterboxed content inside another container can still be detected correctly.
Troubleshooting Tips
If dark scenes trigger false positives, tighten margins and/or raise thresholds.
If rotated content is under-detected, widen margins slightly.
If overlays are hard to see, switch to a higher-contrast warning color.
Demo
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