你如何在Perl中使用ImageMagick？

Question

I'm trying to get the command line equivalent of "identify image.png" to work in Perl.

How do you go about doing this?

Thanks.

Update: I have the following code

        use Image::Magick;      
    $image = Image::Magick->new;
    open(IMAGE, 'image.gif');
    $image->Identify(file => \*IMAGE);
    close(IMAGE);   

But get the following error:

Can't locate Image/Magick.pm in @INC (@INC contains: /etc/perl /usr/local/lib/perl/5.10.1 /usr/local/share/perl/5.10.1 /usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.10 /usr/share/perl/5.10 /usr/local/lib/site_perl .)

Answer 1

There is an Identify method method for PerlMagick as this documentation says.

Its parameters are: file=>file, features=>distance, unique=>{True, False}

So it could be used like this ( tested ):

use Image::Magick;

$image = Image::Magick->new;
open(IMAGE, 'image.gif');
$image->Read(file => \*IMAGE);
close(IMAGE);
$image->Identify();

If you need only the dimensions:

use Image::Magick;

$image = Image::Magick->new;
my ($width, $height, $size, $format) = $image->Ping('image.gif');