Capture webcam's image with Ruby [duplicate]

This question already has answers here: 开发者_运维知识库 Grabbing snapshots from webcams in ruby (6 answers) Closed 6 years ago.

Is there any library in Ruby which I can use to capture the webcam's image? Has to run on GNU/Linux.

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This looks good http://www.wedesoft.demon.co.uk/hornetseye-api/files/HornetsEye-txt.html although I don't have any experience using it.