# OpenCV Computer Vision Samples

OpenCV.js examples for image processing, computer vision, and real-time video analysis in JavaScript

> Canonical page: https://elysiatools.com/en/samples/opencv

- **Category:** Computer Vision

- **Keywords:** opencv, computer vision, image processing, video analysis, opencv.js

## Overview

OpenCV.js examples for image processing, computer vision, and real-time video analysis in JavaScript

## Examples

- **OpenCV.js Basic Operations**: Getting started with OpenCV.js for image processing and basic computer vision tasks
- **Video Processing with OpenCV.js**: Real-time video processing, object tracking, and motion detection using WebRTC and OpenCV.js
- **Advanced OpenCV Applications**: Advanced computer vision applications including AR effects, barcode scanning, and image stitching

## When to use

- Use this sample set when you want reference inputs for OpenCV Computer Vision Samples.
- Use it to preview output formats and compare related sample variants.

## How it works

- Open a sample entry to inspect the prepared example payload or asset.
- Compare it with related tools to understand how the workflow connects.

## Use cases

- OpenCV.js Basic Operations
- Video Processing with OpenCV.js
- Advanced OpenCV Applications

## Frequently asked questions

### What is included in OpenCV Computer Vision Samples?

This page includes curated sample entries, related tools, and neighboring sample collections for OpenCV Computer Vision Samples.

## Related tools

- [Video to Image Sequence](https://elysiatools.com/en/tools/video-to-image-sequence): Extract video frames as an image sequence with customizable frame rate, quality, and output format
- [Video Watermark Image](https://elysiatools.com/en/tools/video-watermark-image): Add an image watermark to videos with customizable position, size, opacity, and timing
- [AI Face Age & Gender](https://elysiatools.com/en/tools/ai-face-age-gender): Estimate age and gender for each detected face
- [Audio Spectrogram Generator](https://elysiatools.com/en/tools/audio-spectrogram-generator): Generate a spectrogram image from an audio file or a video audio track
- [Data URI Generator](https://elysiatools.com/en/tools/data-uri-generator): Convert files into Data URIs (Base64 or percent-encoded) for inlining images, fonts, and assets directly into HTML, CSS, or Markdown
- [Video Frame Extractor](https://elysiatools.com/en/tools/video-frame-extractor): Extract still frames from a video at a fixed interval, custom timestamps, or the first N frames — uses fast input seeking and downloads a ZIP.
- [Video Speed Changer](https://elysiatools.com/en/tools/video-speed-changer): Change video playback speed (faster or slower) while maintaining audio pitch
- [AI Face Detection](https://elysiatools.com/en/tools/ai-face-detection): Detect faces in an image and return bounding box coordinates

## Related content

- [WebRTC Real-Time Communication Samples](https://elysiatools.com/en/samples/webrtc-samples): Comprehensive WebRTC samples for peer-to-peer audio/video communication, data channels, screen sharing, and signaling server implementation
- [Android Image Processing Java Samples](https://elysiatools.com/en/samples/android-image-processing-java): Android Java image processing examples including reading/saving images, scaling, and format conversion
- [Web Image Processing Python Samples](https://elysiatools.com/en/samples/web-image-processing-python): Web Python image processing examples using PIL/Pillow including reading, saving, resizing, and format conversion
- [Windows Image Processing C++ Samples](https://elysiatools.com/en/samples/windows-image-processing-cpp): Windows C++ image processing examples including reading/saving images, resizing, and format conversion using Windows Imaging Component (WIC)
- [QR Code Samples](https://elysiatools.com/en/samples/qrcode-samples): Sample QR code images for testing QR code reading and generation tools
- [AVIF Samples](https://elysiatools.com/en/samples/avif-samples): Sample AVIF images in different aspect ratios and themes with modern compression