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Claude-skill-registry axiom-ios-vision

Use when implementing ANY computer vision feature - image analysis, object detection, pose detection, person segmentation, subject lifting, hand/body pose tracking.

install
source · Clone the upstream repo
git clone https://github.com/majiayu000/claude-skill-registry
Claude Code · Install into ~/.claude/skills/
T=$(mktemp -d) && git clone --depth=1 https://github.com/majiayu000/claude-skill-registry "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/data/axiom-ios-vision" ~/.claude/skills/majiayu000-claude-skill-registry-axiom-ios-vision && rm -rf "$T"
manifest: skills/data/axiom-ios-vision/SKILL.md
source content

iOS Computer Vision Router

You MUST use this skill for ANY computer vision work using the Vision framework.

When to Use

Use this router when:

  • Analyzing images or video
  • Detecting objects, faces, or people
  • Tracking hand or body pose
  • Segmenting people or subjects
  • Lifting subjects from backgrounds
  • Recognizing text in images (OCR)
  • Detecting barcodes or QR codes
  • Scanning documents
  • Using VisionKit or DataScannerViewController

Routing Logic

Vision Work

Implementation patterns → 

/skill axiom-vision

  • Subject segmentation (VisionKit)
  • Hand pose detection (21 landmarks)
  • Body pose detection (2D/3D)
  • Person segmentation
  • Face detection
  • Isolating objects while excluding hands
  • Text recognition (VNRecognizeTextRequest)
  • Barcode/QR detection (VNDetectBarcodesRequest)
  • Document scanning (VNDocumentCameraViewController)
  • Live scanning (DataScannerViewController)
  • Structured document extraction (RecognizeDocumentsRequest, iOS 26+)

API reference → 

/skill axiom-vision-ref

  • Complete Vision framework API
  • VNDetectHumanHandPoseRequest
  • VNDetectHumanBodyPoseRequest
  • VNGenerateForegroundInstanceMaskRequest
  • VNRecognizeTextRequest (fast/accurate modes)
  • VNDetectBarcodesRequest (symbologies)
  • DataScannerViewController delegates
  • RecognizeDocumentsRequest (iOS 26+)
  • Coordinate conversion patterns

Diagnostics → 

/skill axiom-vision-diag

  • Subject not detected
  • Hand pose missing landmarks
  • Low confidence observations
  • Performance issues
  • Coordinate conversion bugs
  • Text not recognized or wrong characters
  • Barcodes not detected
  • DataScanner showing blank or no items
  • Document edges not detected

Decision Tree

User asks about computer vision
  ├─ Implementing?
  │   ├─ Pose detection (hand/body)? → vision
  │   ├─ Subject segmentation? → vision
  │   ├─ Text recognition/OCR? → vision
  │   ├─ Barcode/QR scanning? → vision
  │   ├─ Document scanning? → vision
  │   └─ Live camera scanning? → vision (DataScannerViewController)
  ├─ Need API reference? → vision-ref
  └─ Debugging issues? → vision-diag

Critical Patterns

vision:

  • Subject segmentation with VisionKit
  • Hand pose detection (21 landmarks)
  • Body pose detection (2D/3D, up to 4 people)
  • Isolating objects while excluding hands
  • CoreImage HDR compositing
  • Text recognition (fast vs accurate modes)
  • Barcode detection (symbology selection)
  • Document scanning with perspective correction
  • Live scanning with DataScannerViewController
  • Structured document extraction (iOS 26+)

vision-diag:

  • Subject detection failures
  • Landmark tracking issues
  • Performance optimization
  • Observation confidence thresholds
  • Text recognition failures (language, contrast)
  • Barcode detection issues (symbology, distance)
  • DataScanner troubleshooting
  • Document edge detection problems

Example Invocations

User: "How do I detect hand pose in an image?" → Invoke: 

/skill axiom-vision

User: "Isolate a subject but exclude the user's hands" → Invoke: 

/skill axiom-vision

User: "How do I read text from an image?" → Invoke: 

/skill axiom-vision

User: "Scan QR codes with the camera" → Invoke: 

/skill axiom-vision

User: "How do I implement document scanning?" → Invoke: 

/skill axiom-vision

User: "Use DataScannerViewController for live text" → Invoke: 

/skill axiom-vision

User: "Subject detection isn't working" → Invoke: 

/skill axiom-vision-diag

User: "Text recognition returns wrong characters" → Invoke: 

/skill axiom-vision-diag

User: "Barcode not being detected" → Invoke: 

/skill axiom-vision-diag

User: "Show me VNDetectHumanBodyPoseRequest examples" → Invoke: 

/skill axiom-vision-ref

User: "What symbologies does VNDetectBarcodesRequest support?" → Invoke: 

/skill axiom-vision-ref

User: "RecognizeDocumentsRequest API reference" → Invoke: 

/skill axiom-vision-ref