Tonera Calibration Engine
AI-Powered Face Detection, Lip Detection & Skin Tone Calibration
💡 Select lighting before uploading:
or drag & drop a photo here · JPG, PNG, HEIC · Max 10 MB
📋 Data Collection Requirements — read before capturing
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Required — image will be rejected without these
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iPhone 12 or newer Use the front-facing (selfie) camera — tap "Capture Face" button above
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Indoor, well-lit room No direct sunlight through a window; no dim or candle-lit rooms
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Face forward, eyes on screen Look directly at the front camera — no side angles
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Face fills 50%+ of the frame Move the phone close — forehead to chin should fill most of the screen
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Neutral expression Mouth closed, eyes open naturally — no squinting or smiling
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No flash Turn off flash — it washes out skin colour and breaks the calibration
Recommended — improves data quality
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Remove glasses Frames and reflections interfere with skin detection
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Hair away from face Especially the cheek and forehead area
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Capture in 2–3 rooms Different light sources per person improves model diversity
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Different people, not the same person We need variety — aim for a range of skin tones
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Uploaded
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AI Analyse
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Pick Match
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Fine-tune
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Save
Original
Processing image…
Skin Tone Correction
Pick the image that looks closest to your natural skin tone, then fine-tune with the sliders if needed.
AI suggestions — tap the best match
Generating skin tone suggestions…
Could not generate suggestions.
Fine-tune (optional)
Your Image