>I'm using PWC with a Logitech 4000. I need a utility to simply grab and save
a
>JPG from the camera - something that could be called from within a shell
>script. What would people recommend.
I've had pretty good success with fswebcam.
http://www.firestorm.cx/fswebcam/
Includes quite a few options, most interesting of which is including a PNG
overlay/underlay image to the resulting saved pic (see the site for
examples).
Quite a few options, here's the current list to give you an idea of what can
be done:
Options:
-?, --help Display this help page and exit.
-q, --quiet Hides all messages except for errors.
-v, --verbose Displays extra messages while capturing
--version Displays the version and exits.
-d, --device <name> Sets the V4L device to use.
-i, --input <number> Selects the input to use.
-t, --tuner <number> Selects the tuner to use.
-f, --frequency <number> Selects the frequency use.
-p, --palette <name> Selects the palette format to use.
-D, --delay <number> Sets the pre-capture delay time. (ms)
-r, --resolution <size> Sets the capture resolution.
-F, --frames <number> Sets the number of frames to capture.
-s, --skip <number> Sets the number of frames to skip.
--brightness <number> Sets the image brightness. (-100 - 100)
--hue <number> Sets the image hue. (-100 - 100)
--colour <number> Sets the colour saturation. (-100 - 100)
--contrast <number> Sets the contrast. (-100 - 100)
--whiteness <number> Sets the whiteness. (-100 - 100)
--flip <direction> Flips the image. (h, v)
--crop <size>[,<offset>] Crop a part of the image.
--scale <size> Scales the image.
--rotate <angle> Rotates the image in right angles.
--deinterlace Reduces interlace artifacts.
--invert Inverts the images colours.
--no-banner Hides the banner.
--top-banner Puts the banner at the top.
--bottom-banner Puts the banner at the bottom. (Default)
--banner-colour <colour> Sets the banner colour. (#AARRGGBB)
--line-colour <colour> Sets the banner line colour.
--text-colour <colour> Sets the text colour.
--font <name[:size]> Sets the font and size.
--no-shadow Disables the text shadow.
--title <text> Sets the main title. (top left)
--subtitle <text> Sets the sub-title. (bottom left)
--timestamp <format> Sets the timestamp format. (top right)
--localtime Uses localtime instead of GMT.
--info <text> Sets the info text. (bottom right)
--underlay <PNG image> Sets the underlay image.
--overlay <PNG image> Sets the overlay image.
--jpeg <factor> Outputs a JPEG image. (-1, 0 - 95)
--png <factor> Outputs a PNG image. (-1, 0 - 10)
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