[PLUG] Strange Image Magick issue

Karol Kulaga root at loraksus.d2g.com
Thu Aug 21 15:39:02 UTC 2003


Sometimes tiff is actually a bit smaller than png and jpg - if the image is
black and white and has a low dpi, generally that will do it. Gif might be a
better choice for the file if you are so inclined to use it.


-----Original Message-----
From: plug-admin at lists.pdxlinux.org
[mailto:plug-admin at lists.pdxlinux.org]On Behalf Of Matt Alexander
Sent: Thursday, August 21, 2003 3:15 PM
To: plug at lists.pdxlinux.org
Subject: [PLUG] Strange Image Magick issue


I'm trying to make an image 50% of it's original size and convert it from
TIFF to PNG.

When I use convert without any options, I get the following:
convert image.tiff image.png

117K image.tiff
206K image.png

I'm not sure why PNG is so much larger, but whatever...
Here's the odd part:

convert -resize 50% image.tiff image-50.png

654K image-50.png

The image looks 50% smaller when I open it, but why did the file size
balloon?  And what do I need to do to make it a smaller file size?
Thanks,
~M

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