|
Re: Resizing images
by davorg (Chancellor) on Feb 12, 2001 at 17:49 UTC
|
One slight warning. Resizing a GIF could well be seen as
creating a new GIF. Doing this without buying a license
from Unisys could well be illegal under the terms of their
patents. See Lincoln' Stein's excellent Web Techniques
article at
http://www.webtechniques.com/archives/1999/12/webm/
for more details.
--
<http://www.dave.org.uk>
"Perl makes the fun jobs fun
and the boring jobs bearable" - me
| [reply] |
|
|
| [reply] |
|
|
The UNISYS patent will, thankfully, expire in 2003. A
Slashdot
article has an interesting remark on this debacle.
| [reply] |
Re: Resizing images
by $code or die (Deacon) on Feb 12, 2001 at 17:44 UTC
|
| [reply] |
|
|
And, while we're at it, so does the GIMP (albeit, not so stably. But it does work!). I'd still try Image::Magick
tho' =)
Philosophy can be made out of anything. Or less -- Jerry A. Fodor
| [reply] |
|
|
But as far as I know (correct me if I'm wrong) I have to install
ImageMagick first to be able to use the Perl package. That's
not the kind of solution I'm looking for.
I want to be able to distribute my software, and, if needed,
provide additional Perl modules (more or less the way the
Pronto mail client installer works), and I don't want to
bother potential users with the need of installing some other
software to use mine
Jouke Visser, Perl 'Adept'
| [reply] |
Re: Resizing images
by Corion (Patriarch) on Feb 12, 2001 at 17:45 UTC
|
Image::Magick is also available for Win32, but
the current binaries don't play well together with Perl 5.6.
t0mas has compiled a set of working binaries though, so
it must be possible :-)
You can always shell out to the ImageMagick binaries - ImageMagick is fully portable.
| [reply] |
Re: Resizing images
by ichimunki (Priest) on Feb 12, 2001 at 20:39 UTC
|
In Tk, you can use the -subsample option in the copy() method call from a Photo widget to shrink any type of image you have loaded. This only allows for integer reduction ratios as far as I can tell, but is better than nothing. See an example of this in this node-- but note I've had little luck solving the memory issues. Your mileage may vary. This should not run afoul of any patents since you are only loading the image from a gif file, and not creating a new gif. | [reply] |
Re: Resizing images
by Anonymous Monk on Feb 13, 2001 at 05:35 UTC
|
I use ImageMagick under Windows to resize graphics. I have a fairly simple script that loops through a folder full of graphics and applies an ImageMagick function(in this case resize) to each of them.
You will need to download ActiveState version 5.x - the latest 6.x doesn't yet support ImageMagick. Install that on your Windows box, then use PPM to install ImageMagick.
--Josh Everist | [reply] |
|
|
Why not use the Image::Size module. I use it to resize the dimensions of all my graphics files in my institutions intranet. It's part of the standard Perl distribution for Win32 if you are on a Windows system.
Perl is: "The last thing to break the camel's back!".
| [reply] |
Re: Resizing images
by JSchmitz (Canon) on Feb 13, 2001 at 01:18 UTC
|
How are you trying to display the image?
Can't you just use pack?
like
$arrow = $mw->Photo(-file => "XCamel.gif");
-image => $arrow)->pack;
| [reply] |