These modules add iteration support to Image::Magick. This means that if you have a stream of concatenated images, you can access each image in the stream as an independent Image::Magick object.
Iteration functionality is not present in Image::Magick itself as of version 5.56. Passing a stream of concatenated images would result in essentially a "stack" of images which would all be manipulated in parallel by any Image::Magick calls. Calls to Write() either output an animated series of image (a la animated GIFs), or the first image in the series.
Image::Magick::Iterator is extensible to support many different image filetypes. Currently only PPM support is implemented. To iterate over a PPM stream, the code would look something like:
my $iter = Image::Magick::Iterator->new();
#assume PPM stream is coming from STDIN; $iter->handle(\*STDIN);
#explicitly set format to PPM, there is no auto-detection built in $iter->format('PPM');
while(my $image = $iter->next){
print $image->Get('height'),"\n"; #access height attribute of each
#Image::Magick object }
INSTALLATION
To install this module type the following:
perl Makefile.PL
make
make test
make install
DEPENDENCIES
This module requires these other modules and libraries:
Image::Magick 5.56
Image::PBMlib 1.05
COPYRIGHT AND LICENCE
Copyright (C) 2004 by Allen Day, allenday@ucla.edu
This library is released under GPL, the GNU General Public License