AI-assisted article

This article was prepared with AI assistance based on an analysis of the current Lumina Studio source code, existing Wiki content, and relevant workflows. It has been checked against the current version, but omissions or details that become outdated may remain as the software evolves. If you find an error or have a clearer explanation, example, or suggestion, please leave a comment on this page or propose an edit on GitHub.

LUT Compare

LUT Compare joins two LUTs by identical recipe and calculates ΔE00 between their predicted colours. It is designed for material-batch changes, repeat-calibration consistency, and before/after comparisons.

Statistics

• Matched recipes: records that can be joined by recipe key.
• Identical RGB: matched records with exactly equal RGB values.
• Mean / P95 / maximum ΔE00: central, tail, and worst shared-recipe differences.
• Coverage A / B: shared recipes as a percentage of each LUT's comparable records.

P95 means 95% of shared recipes are at or below that difference and is usually more representative than the single maximum. The maximum remains useful for finding the most abnormal recipe.

Compatibility warnings

Warnings report mismatched colour mode, layer count, layer height, line width, schema, predictive capability, or dynamic capability. With no shared recipes, row numbers must not be treated as equivalent recipes.

Largest Differences displays both colours, the recipe, and ΔE00. Comparing LUTs does not modify, merge, or overwrite either source.

Related pages:

• LUT Details and Gamut Charts
• LUT Library