OpenCV

Computer vision and image processing using OpenCV WebAssembly. Uses opencv-component.wasm running in openclaw-wasm-sandbox plugin. Supports image processing, object detection, feature extraction, panorama stitching, photo filters, camera calibration, and ML. 图像处理、OpenCV、目标检测、特征提取、图像拼接、相机标定、机器学习

OpenCV Computer Vision Skill

Comprehensive computer vision and image processing using OpenCV WebAssembly.

Trigger When

使用此技能的场景：

• 图像处理 / Image Process：resize（调整大小）、blur（模糊）、threshold（阈值）、morphology（形态学）、sharpen（锐化）、crop（裁剪）、stats（统计）
• 目标检测 / Detection：cascade（级联检测）、dnn/YOLO（深度学习检测）、hog、contour（轮廓）、circle（圆检测）、line（直线检测）
• 特征提取 / Features：orb、sift、akaze、match（特征匹配）、homography（单应性）、optflow（光流）、template（模板匹配）
• 图像拼接 / Stitching：panorama（全景拼接）、stitch（多图拼接，扫描件模式）
• 照片处理 / Photo：denoise（降噪）、inpaint（修复）、stylize（风格化）、hdr、pencil（素描）、detail（细节增强）
• 相机标定 / Calibration：chessboard（棋盘格）、undistort（去畸变）、corners（亚像素角点）、pose（位姿估计）
• 机器学习 / ML：train-knn（训练KNN）、train-svm（训练SVM）、predict（预测）、kmeans（聚类）
• 批处理 / Batch：batch-process（批量处理）、batch-convert（格式转换）、batch-stats（批量统计），支持多线程

Prerequisites

• Required plugin: openclaw-wasm-sandbox
• WASM file: ~/.openclaw/skills/opencv/files/opencv-component.wasm
  • Download if missing:

    openclaw wasm-sandbox download \
      "https://raw.githubusercontent.com/guyoung/wasm-sandbox-openclaw-skills/main/opencv/files/opencv-component.wasm" \
      "~/.openclaw/skills/opencv/files/opencv-component.wasm"
    

Tool

Use wasm-sandbox-run tool with the WASM file:

wasm-sandbox-run({
  wasmFile: "~/.openclaw/skills/opencv/files/opencv-component.wasm",
  args: ["<operation>", ...args]
})

For file access, use workDir or mapDir to expose directories to the sandbox.

Operations Overview

Category	Operations
Image Process	resize, blur, threshold, morphology, sharpen, crop, stats
Detection	cascade, dnn (YOLO), hog, contour, circle, line
Features	orb, sift, akaze, match, homography, optflow, template
Stitching	panorama, stitch
Photo	denoise, inpaint, stylize, hdr, pencil, detail
Calibration	chessboard, undistort, corners, pose
ML	train-knn, train-svm, predict, kmeans
Batch	batch-process, batch-convert, batch-stats

Detailed Usage

See references/operations.md for complete operation reference with arguments, examples, and sandbox notes.