Image Magick thumbnail batch resizing

[Tim Heaney]

Spartacus <spam@mailinator.com> writes:

>
> As both 'convert' and 'display' utilize imagemagick, I guess it should in
> theory be possible to get the same quality either way.
>
> Does anyone knows how the "display vid" procedure acheive such good result,
> and how I can get equivalent quality using a simple batch convert?

I think you want to scale instead of sample

do convert -quality 85 -scale x75 $i ../thumbs/`basename $i .jpg`.jpg;

> Or are there any suitable perl tools (modules) that could be useful
> here?

PerlMagick gives you access to all of ImageMagick from within Perl,
but it doesn't do anything differently.

Alternatively, you could use Image::Resize or GD itself.

I hope this helps,

Tim

[Gunnar Hjalmarsson]

Spartacus wrote:

> Or are there any suitable perl tools (modules) that could be useful here?

I'm accessing ImageMagick from the Perl module Image::Magick:

use Image::Magick;
my $image = Image::Magick->new;
$image->Read('/path/to/original/image');
$image->Thumbnail('120x120');
$image->Write('/path/to/thumbnail/directory');

--
Gunnar Hjalmarsson
Email: [url]http://www.gunnar.cc/cgi-bin/contact.pl[/url]