Unseen

Swift Student Challenge 2026 — iPad App (.swiftpm)

See what 300 million people can't.

Unseen is an accessibility inspection app that uses the iPad camera to provide real-time color vision deficiency simulation and WCAG text contrast diagnostics on physical items — posters, textbooks, signage, and on-screen UI.

Why It Must Be an App

• Real-time camera input is the core — web tools and static filters cannot replace on-the-spot diagnosis.
• Designed as a repeatable inspection tool for designers and educators in the field.

Features

• Real-time camera frame processing with AVFoundation
• 4 simulation modes: Normal / Deuteranopia / Protanopia / Tritanopia
• CoreImage color matrix transforms (SimulationEngine) for live vision simulation
• Vision OCR + WCAG contrast calculation + PASS/FAIL overlay badges
• Tap-to-inspect color detail (HEX/RGB, per-mode transform, alternative color suggestions)
• CoreHaptics feedback on FAIL regions
• Freeze/resume frame and sample fallback mode (for denied permissions or no camera)
• Education cards sheet (swipe or button)
• Full VoiceOver labels/hints and Dynamic Type responsive layout

Code Structure

• ContentView.swift — App entry screen wrapper
• CameraScreen.swift — Main UI (camera viewfinder, controls, findings, education cards)
• CameraAnalyzerViewModel.swift — Camera capture and analysis pipeline
• SimulationEngine.swift — CVD simulation engine protocol + CoreImage implementation
• ContrastAnalyzer.swift — WCAG contrast ratio calculation
• Models.swift — Domain models and analysis constants
• ColorInspectionSheet.swift — Tap-to-inspect color detail sheet
• EducationCardsSheet.swift — Accessibility education cards
• HapticService.swift — CoreHaptics feedback service
• Theme.swift — Shared color theme
• Supporting/Info.plist — Camera usage description

Running

• Open the unseen.swiftpm folder in Xcode or Swift Playgrounds.
• Camera features require a physical device (iPad) for testing.