Google is using a new way to measure skin tones to make search results more inclusive - The Verge
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Fitzpatrick Skin Tone Analyser
Sober Skin AI Skin Color Analyzer Machine Portable Skin Analysis Machine for Skin Color Tattoo Machine Kit - AliExpress
How do you accurately measure skin color? Part 2
Fitzpatrick scale - Wikipedia
Heart Rate Measurements of Wearable Monitors Vary by Activity, Not Skin Color | Duke Pratt School of Engineering
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Research Techniques Made Simple: Cutaneous Colorimetry: A Reliable Technique for Objective Skin Color Measurement - ScienceDirect
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