camera
Just a dead simple package to create readable streams from connected webcams
Last updated 16 days ago by contra .
MIT · Repository · Bugs · Original npm · Tarball · package.json
$ cnpm install camera 
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Information

Package camera
Description Just a dead simple package to create readable streams from connected webcams
Node Version >=12

Install

You'll need OpenCV 4 or newer installed before installing.

Specific for macOS

Install OpenCV using brew

brew update
brew install opencv@4
brew link --force opencv@4

Usage

createStream([idx])

  • The object returned from createStream is a full readable Stream - you can pause, resume, destroy, pipe, etc.
  • createStream optionally takes a camera number and defaults to 0 for the primary camera.
  • Each data event is a full image buffer from the camera.
  • Image buffers are PNGs.
  • To convert the buffer to a base64 data uri (for the browser) just do data:image/png;base64,${buffer.toString('base64')}
const camera = require('camera')

const webcam = camera.createStream()

webcam.on('data', (buffer) => {
  // do something with image buffer
})

snapshot(cb)

Returns an error and one image buffer to the given callback. Useful if you just want to grab a simple photo.

record(milliseconds, cb)

Returns an array of video frames for the time-span specified in milliseconds.

Examples

Take a picture

const fs = require('fs')
const camera = require('camera')

const webcam = camera.createStream()

webcam.on('error', (err) => {
  console.log('error reading data', err)
})

webcam.on('data', (buffer) => {
  fs.writeFileSync('cam.png', buffer)
  webcam.destroy()
})

webcam.snapshot((err, buffer) => {
  
})

webcam.record(1000, (buffers) => {
  
})

Current Tags

  • 1.0.0                                ...           latest (16 days ago)

6 Versions

  • 1.0.0                                ...           16 days ago
  • 0.0.5                                ...           6 years ago
  • 0.0.4                                ...           7 years ago
  • 0.0.3                                ...           7 years ago
  • 0.0.2                                ...           8 years ago
  • 0.0.1                                ...           8 years ago
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