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Pywayne Cv Apriltag Detector

AprilTag corner detection for camera calibration and pose estimation. Use when working with pywayne.cv.apriltag_detector module to detect AprilTag fiducial m...

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AprilTag corner detection for camera calibration and pose estimation. Use when working with pywayne.cv.apriltag_detector module to detect AprilTag fiducial m...

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Requirements

Target platform
OpenClaw
Install method
Manual import
Extraction
Extract archive
Prerequisites
OpenClaw
Primary doc
SKILL.md

Package facts

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Package format
ZIP package
Source platform
Tencent SkillHub
What's included
SKILL.md

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Trust & source

Release facts

Source
Tencent SkillHub
Verification
Indexed source record
Version
0.1.0

Documentation

ClawHub primary doc Primary doc: SKILL.md 8 sections Open source page

Pywayne AprilTag Detector

This module detects AprilTag fiducial markers for camera calibration and pose estimation.

Quick Start

from pywayne.cv.apriltag_detector import ApriltagCornerDetector # Create detector detector = ApriltagCornerDetector() # Detect from file path detections = detector.detect('test.png', show_result=True) # Detect from numpy array import cv2 image = cv2.imread('test.png') detections = detector.detect(image)

detect()

Detect AprilTags in an image: detections = detector.detect( image, # File path, Path object, or numpy array show_result=False # Show visualization window ) Returns list of detection results with: id: Tag ID hamming_distance: Detection confidence center: Tag center coordinates (x, y) corners: 4 corner coordinates

detect_and_draw()

Detect AprilTags and draw results on original image: result_image = detector.detect_and_draw(image) cv2.imshow('Detection Result', result_image) cv2.waitKey(0) Visualization includes: Green polygon outlines Red corner circles Red ID labels at tag centers

Requirements

cv2 (OpenCV) - Image processing numpy - Array operations gettool - Downloads apriltag_detection library automatically

Library Installation

The detector automatically checks for and installs the apriltag_detection library using gettool if not found.

Detection Result Format

Each detection contains: FieldDescriptionidTag identifierhamming_distanceHamming distance (lower = more confident)centerTag center as (x, y) tuplecorners4 corner coordinates as [(x1, y1), (x2, y2), (x3, y3), (x4, y4)]

Notes

Supports both grayscale and BGR images Automatic grayscale conversion for detection Visualization sizes scale with image dimensions Uses AprilTag 36h11 tag family

Category context

Agent frameworks, memory systems, reasoning layers, and model-native orchestration.

Source: Tencent SkillHub

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Package contents

Included in package
1 Docs
  • SKILL.md Primary doc