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Capture Images from the Command Line

Forked and improved from: http://iharder.net/imagesnap

A command-line tool that lets you capture still images from an iSight or other video source.

Installation

Copy the imagesnap file to someplace on your path like /usr/local/bin, or leave it in a "current directory," and call it with imagesnap instead.

Usage

To capture an image simply run the program from the command line.

$ imagesnap Capturing image from device "iSight"..................snapshot.jpg

To specify a filename, make that your last argument:

$ imagesnap icu.jpg Capturing image from device "iSight"..................icu.jpg

If you have multiple video devices attached to your computer, use the -l (lowercase L) flag to list them:

$ imagesnap -l Video Devices: iSight DV

To select a specific video device use the -d device flag:

$ imagesnap -d DV Capturing image from device "DV"..................snapshot.jpg

To output a jpeg representation to standard out (stdout), use a dash for the filename:

$ ssh [email protected] /usr/local/bin/imagesnap - > snapshot.jpg $ open snapshot.jpg

Image Formats

The following image formats are supported and are determined by the filename extension: JPEG, TIFF, PNG, GIF, BMP.

Changes

  • v0.3.0 - Removed QTKit dependency and converted application to use AVFoundation instead.
  • v0.2.5 - Added option to delay the first snapshot for some time. Added a time-lapse feature (thanks, Bas Zoetekouw).
  • v0.2.4 - Found bug that caused crash on Mac OS X 10.5 (but not 10.6).
  • v0.2.4beta - Tracking bug that causes crash on Mac OS X 10.5 (but not 10.6).
  • v0.2.3 - Fixed bug that caused all images to be saved as TIFF. Not sure when this bug was introduced.
  • v0.2.2 - Added ability to output jpeg to standard out. Made executable lowercase imagesnap.
  • v0.2.1 - Changed name from ImageCapture to ImageSnap to avoid confusion with Apple's Image Capture application.
  • v0.2 - Multiple file formats (not just TIFF). Faster response.
  • v0.1 - This is the initial release.