Re: watermark
Re: watermark
- Subject: Re: watermark
- From: Roger Howard <email@hidden>
- Date: Wed, 21 Oct 2009 09:25:13 -0700
ImageMagick is a great suggestion - visible watermarking is trivial
using the "composite" command (one of the standard ImageMagick tools).
For instance, if you have a watermark.png with transparency built in
to the image (via an alpha) then the following would work:
composite -gravity center watermark.png image.tif result.jpg
This would take watermark.png, overlay it in the center of image.tif,
and save the results to result.jpg
There's also a "watermark" option, but that's mainly for watermark
images which have no transparency (you define the blending modes in
the script step, rather than using transparency in the watermark image
- which I find preferably).
Image Events/sips (both built in to OSX) don't support compositing
images, so they won't really help. ImageMagick is pretty
straightforward and enormously useful for anyone automating imaging
operations.
-R
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