Insights · Skin · Skin

Discrete red/dark spots (count by region)

Small high-contrast blobs on the a*/L* channels with size and circularity filters, counted per region.

Confidence
Skin · lighting-dependent
Unit
count
Region
cheeks + forehead + chin
CI floor
canvas pixel analysis in CIE L*a*b* — see methodology
Measure yours
Illustration · on your scan the same lines are drawn on your own photo

How to read it

Below the mean

Near the mean

Above the mean

Caveat

This is not a diagnosis of anything. Freckles, moles, acne, and shadows from hair are all counted the same way.

Why every value has an error bar

Every value Canthion reports carries a 1σ uncertainty propagated from MediaPipe Face Mesh's published accuracy (3.96% of inter-ocular distance mean absolute error per landmark, Kartynnik 2019). For a typical 300 px inter-pupil photo that is ≈12 px per landmark, which is why small ratios and angles get wide intervals. A number without an interval is a number pretending to be more precise than it is.

Related: how bone-level measurements are taken from a photo · methodology · all insights