TattooLens lets you preview tattoo designs on your actual skin using your phone camera. Pick from a curated design library or upload your own, point your camera at your arm, and AI generates a realistic preview in seconds. Built with YOLO real-time segmentation + Gemini AI image generation. No Photoshop, no guessing - just point and see. Perfect for: - People considering their first tattoo - Tattoo artists showing designs to clients - Anyone who wants to test placement before committing