Neutral Scope

The Neutral Scope helps identify areas of your image that should be neutral (gray) but may have a color cast. It's particularly useful for white balance verification and color correction.

Neutral Scope highlighting near-neutral pixels

Overview

The Neutral Scope analyzes your video signal to highlight pixels that are close to neutral but exhibit a slight color bias. This makes it easy to:

  • Verify white balance accuracy

  • Identify subtle color casts in gray areas

  • Check that neutral objects (white walls, gray cards) are truly neutral

How It Works

The scope examines each pixel's RGB values and calculates how far they deviate from perfect neutrality (where R=G=B). Areas with minimal deviation are highlighted, allowing you to see if they lean toward any particular hue.

Settings

Access scope settings via the hamburger menu (☰) or right-click on the scope.

Setting
Description
Default

Luma Range

Limit analysis to a specific luma (Y') band

Full

Threshold

How close to neutral a pixel must be to be included

5 %

Display Mode

Overlay or isolated view

Overlay

Luma Range

Limit the analysis to shadows, midtones, or highlights:

  • Full: Analyse the entire tonal range

  • Shadows: Focus on dark areas — black-level neutrality is often where camera sensor noise introduces colour bias

  • Midtones: Focus on middle grey, where human perception is most sensitive to colour casts

  • Highlights: Focus on bright areas — white balance is traditionally anchored here (a white card or light source)

Use Cases

White Balance Verification

Point the scope at a gray card or neutral reference to verify your white balance is correct. Any color bias will be immediately visible.

Finding Color Casts

When color correcting footage, use the Neutral Scope to identify subtle casts that may not be obvious in the source viewer.

Checking Skin Tones

While skin tones are not neutral, areas like the whites of eyes or teeth should be close to neutral. The scope can help identify unwanted color contamination.

Tips

  • Use a gray card or color chart as a reference when possible

  • Combine with the Vectorscope for comprehensive color analysis

  • The threshold setting lets you adjust sensitivity to your needs

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