[PLUG] Strange Image Magick issue

Matt Alexander m at pdxlug.org
Thu Aug 21 15:42:02 UTC 2003


Hmmm...  "convert image.tif image.gif" gave me a 5.2MB GIF.


Karol Kulaga said:
> 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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