vision-frameworklisted

Implement computer vision features including text recognition (OCR), face detection, barcode scanning, image segmentation, object tracking, and document scanning in iOS apps. Covers both the modern Swift-native Vision API (iOS 16+) and legacy VNRequest patterns, VisionKit DataScannerViewController for live camera scanning, and VNCoreMLRequest for custom model inference. Use when adding OCR, barcode scanning, face detection, or custom Core ML model inference with Vision.
dpearson2699/swift-ios-skills · ★ 730 · AI & Automation · score 80

Install: claude install-skill dpearson2699/swift-ios-skills

# Vision Framework Detect text, faces, barcodes, objects, and body poses in images and video using on-device computer vision. Patterns target iOS 26+ with Swift 6.3, backward-compatible where noted. See [references/vision-requests.md](references/vision-requests.md) for complete code patterns and [references/visionkit-scanner.md](references/visionkit-scanner.md) for DataScannerViewController integration. ## Contents - [Two API Generations](#two-api-generations) - [Request Pattern (Modern API)](#request-pattern-modern-api) - [Text Recognition (OCR)](#text-recognition-ocr) - [Face Detection](#face-detection) - [Barcode Detection](#barcode-detection) - [Document Scanning (iOS 26+)](#document-scanning-ios-26) - [Image Segmentation](#image-segmentation) - [Object Tracking](#object-tracking) - [Other Request Types](#other-request-types) - [Core ML Integration](#core-ml-integration) - [VisionKit: DataScannerViewController](#visionkit-datascannerviewcontroller) - [Common Mistakes](#common-mistakes) - [Review Checklist](#review-checklist) - [References](#references) ## Two API Generations Vision has two distinct API layers. Prefer the modern API for new code. | Aspect | Modern (iOS 18+) | Legacy | |---|---|---| | Pattern | `let result = try await request.perform(on: image)` | `VNImageRequestHandler` + completion handler | | Request types | Swift types — structs and classes (`RecognizeTextRequest`, `DetectFaceRectanglesRequest`) | ObjC classes (`VNRecognizeTextRequest`, `VNDetect