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rubylinuxwebcam

Grabbing snapshots from webcams in ruby

How can I take snapshots from a webcam in ruby? I know the webcam device is on /dev/video0, but how do I get a picture from it?

Solution

  • I'm the developer of Hornetseye. You can capture images with the V4L2-interface of HornetsEye as follows.

    require 'rubygems'
require 'hornetseye_v4l2'
require 'hornetseye_xorg'
require 'hornetseye_rmagick'
include Hornetseye
input = V4L2Input.new '/dev/video0'
img = X11Display.show { input.read }
img.to_ubytergb.save_ubytergb 'test.png'

    Currently supported colourspaces are UYVY, YUYV, YUV420, GREY, RGB24. Note that other colourspaces such as MJPEG are not supported at the moment.