OpenCV Computer Vision for Openclaw

A high-performance computer vision and image processing toolkit powered by OpenCV WebAssembly for AI agents.

guyoung
v1.0.0
Apr 7, 2026
0
1k
0

Install & Download

1. ClawHub CLI

The fastest way to install a skill directly from the registry.

npx clawhub@latest install opencv

2. Manual Installation

Copy the skill folder to one of these locations

Global
~/.openclaw/skills/
Workspace
<project>/skills/

Priority: Workspace > Local > Bundled

3. Prompt Installation

Copy this prompt to OpenClaw to install it automatically.

Help me install opencv using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).

Prefer to download?

Get the raw skill files in a ZIP archive.

What is OpenCV Computer Vision?

The OpenCV Computer Vision skill provides a robust suite of image manipulation and analysis tools delivered through WebAssembly. By leveraging the openclaw-wasm-sandbox, this skill allows AI agents to perform complex visual tasks locally and securely. It is a critical component of the Openclaw Skills ecosystem for developers needing to bridge the gap between LLM reasoning and programmatic image understanding.

This skill enables a wide range of capabilities from basic transformations like resizing and blurring to advanced computer vision techniques such as feature extraction and deep learning-based object detection. It is designed to work seamlessly within your existing automation pipelines, providing the technical foundation for any vision-centric AI agent.

OpenCV Computer Vision Use Cases

  • Automating image preprocessing such as resizing, cropping, and noise reduction for dataset preparation.
  • Implementing real-time object detection using YOLO or Haar cascades within Openclaw Skills workflows.
  • Extracting and matching image features for visual search or document verification.
  • Creating panoramic views by stitching multiple images together automatically.
  • Enhancing photo quality through sharpening, stylization, and detail enhancement filters.
  • Performing camera calibration and pose estimation for spatial computing tasks.
  • Executing batch image format conversions and statistical analysis across large directories.

How OpenCV Computer Vision Works

  1. The AI agent determines the need for image processing and identifies the relevant operation within the Openclaw Skills library.
  2. The system checks for the presence of the opencv-component.wasm file in the local skills directory.
  3. The agent invokes the wasm-sandbox-run tool, specifying the path to the OpenCV WebAssembly binary.
  4. Arguments defining the operation (e.g., resize, dnn, or panorama) and file paths are passed into the secure sandbox.
  5. The openclaw-wasm-sandbox executes the OpenCV logic on the local machine, ensuring high performance without external API calls.
  6. Processed image data or analysis results are returned to the agent to trigger the next step in the workflow.

OpenCV Computer Vision Setup

Prerequisites

This skill requires the openclaw-wasm-sandbox plugin to be installed and active in your environment.

Install WASM Component

You must download the specific OpenCV WebAssembly component to your local Openclaw Skills storage:

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"

Configuration

Ensure your agent has permission to access the working directories where images are stored by configuring the workDir or mapDir settings in the sandbox runner.

OpenCV Computer Vision Data Schema & Taxonomy

The skill organizes its operations into several functional categories, facilitating structured data processing within Openclaw Skills:

Category Key Operations Description
Image Process resize, blur, sharpen, crop Basic pixel-level manipulations and statistics.
Detection dnn (YOLO), cascade, contour Object, shape, and edge detection routines.
Features orb, sift, match, template Feature point extraction and image matching.
ML train-knn, train-svm, predict Local machine learning training and inference.
Batch batch-process, batch-convert High-efficiency multi-threaded bulk operations.

Output files are typically generated in the same directory as the input or a specified output path within the sandbox environment.

OpenCV Computer Vision Advanced Features

  • Support for Deep Neural Networks (DNN) allowing for modern object detection models like YOLO.
  • Multi-threaded batch processing capabilities for handling massive image libraries efficiently within Openclaw Skills.
  • Advanced image stitching and panorama generation using sophisticated feature matching algorithms.
  • Built-in machine learning modules for training KNN and SVM models directly on visual features.
  • Comprehensive camera calibration tools including chessboard detection and undistortion for precision optics tasks.

SKILL.md


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