E-Factor Training

Image E-Factor Exercise

Drag the divider to compare the Reference and Sample halves. Each level shows you exactly what a given ΔE difference looks like on a realistic test image.

Blind Image Spot
Select E-Factor Level:
1 1.5 2 2.5 3 3.5 4 4.5 5 6 7 8 9 MASTER
⇄
Reference
Sample

← Drag the divider to compare →

3
ΔE value
Noticeable on close inspection

At E-Factor 3, color differences of ΔE 3 are noticeable on close inspection. Trained color professionals can reliably detect this difference.

Perception scale
ΔE 1 ΔE 3 ΔE 5 ΔE 7 ΔE 9
Peter · AI Assistant
Questions about E-Factor or color perception? Ask me.