Harmony · Front view · Mouth
Mouth Corner Position
Average vertical position of the mouth corners relative to the central mouth seam.
What is measured
The calculation
Mean of (mouth-center y − corner y) × photo scale
Front view / Measurement guide
Follow the measurement
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Why it matters
This describes the resting direction of the mouth outline. It differs from symmetry: both corners can be equally downturned, or opposite offsets can cancel in the average.
- Negative: corners sit below the central seam on average.
- Positive: corners sit above the central seam on average.
Where the idea comes from
FaceIQ adaptation
This is a FaceIQ landmark-based description of facial shape. The linked research provides background on facial measurement or perception; it has not directly validated this exact formula or its score. [1]
A worked example
Corners 1 mm and 3 mm above the center average +2 mm. Corners at +2 and −2 mm average zero despite asymmetry.
Example values explain the calculation. They are not a target range and are not measurements of the schematic above.
Research & further reading
The sources below explain the history or related evidence. FaceIQ’s score weights and reference ranges are model settings; these papers do not collectively validate the scoring system.
[1] Gibelli et al. · 2015
A Quantitative Analysis of Lip Aesthetics: The Influence of Gender and AgingMeasured lip area, volume and thickness across sex and age groups. This describes lip morphology; it does not establish a universally attractive lower-to-upper lip ratio.