The Significance of ‘Wrinkle Index’ 

Wrinkles. Something we analyze consciously or subconsciously continually in our daily encounters with colleagues, friends, the TV, and the mirror. But the intuitive results are qualitative: “lots” or “a few.” “Deep” or “fine.” In order to measure the effect of a treatment, however, more precision is required.

Toward that end, we at skinofmine.com have developed a method for quantifying wrinkles. Users can find their “wrinkle index.” But what does
that index signify? The best way to get an intuitive feel for what the index is showing is by examining a few examples.

The images shown below were analyzed using the wrinkle quantification tool at skinofmine.com. The tool requires the user to highlight the wrinkles as shown in the green masks in the lower rows, resulting in the wrinkle indices shown.

The index seems to correlate well with visual inspection; the more wrinkles in the photo, the higher the wrinkle index. With some caveats.
Shadows in the photos can artificially elevate the index. As can including hair, beards, eyebrows, moles, the jawline, or pimples in the highlighted area. Keeping lighting, zoom, and contrast levels consistent is also important for reliability.

So, why is the wrinkle index important? Well, if I’m going to splurge on a $100 jar of hope, I’d like to see some results. And be able to measure them.

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