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I'm looking for an xpm icon to use as a placeholder until I make something better.

Are there any linux command line tools that create blank images of specified dimensions? Like people use touch to create blank text files.

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This is not a programming question. – unwind Jun 9 '11 at 9:01
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migrated from stackoverflow.com Jun 9 '11 at 9:52

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The convert command from ImageMagick can be used: convert -size 32x32 xc:white empty.jpg will create a 32x32 image using a white background. convert -size 32x32 xc:transparent empty2.jpg will create it with transparent background.

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To specify the DPI setting, use the -density 96 switch. imagemagick.org/script/command-line-options.php?#density – trismarck Mar 18 at 3:46
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up vote 2 down vote

ImageMagick's convert can do this.

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up vote 2 down vote

Here you go:

http://www.imagemagick.org/Usage/canvas/

Imagemagick does it all for you. You can specify size, colour and filetype. Also you can put it through 'passthru' or 'exec' in your code or run the php module version.

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up vote 2 down vote

You can use convert -size 123x456 xc:white x.png. convert is part of ImageMagick.

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up vote 0 down vote

May be this article Graphics from the command line helpful for you

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