Image::Seek(3pm)					User Contributed Perl Documentation					  Image::Seek(3pm)

NAME

       Image::Seek - A port of ImgSeek to Perl

DESCRIPTION

	   use Image::Seek qw(loaddb add_image query_id savedb);

	   loaddb("haar.db");

	   # EITHER
	   my $img = GD::Image->newFromJpeg("photo-216.jpg", 1);
	   # OR
	   my $img = Imager->new();
	   $img->open(file => "photo-216.jpg");
	   # OR
	   my $img = Image::Imlib2->load("photo-216.jpg");

	   # Then...
	   add_image($img, 216);
	   savedb("haar.db");

	   my @results = query_id(216); # What looks like this photo?

	   remove_id(216); # Just remove id from database.

DESCRIPTION

       ImgSeek (http://www.imgseek.net/) is an implementation of Haar wavelet decomposition techniques to find similar pictures in a library. This
       module is port of the ImgSeek library to Perl's XS. It can deal with image objects produced by the "Imager" and "Image::Imlib2" libraries.

EXPORT

       None by default, but the following functions are available:

   savedb($file)
       Dumps the state of the norms and image buckets to the file $file.

   loaddb($file)
       Loads a database of image norms produced by savedb

   cleardb
       Clears the internal database. Note that "loaddb" will load into memory a bunch of data that you may already have - it will duplicate rather
       than replace this data, so results will be skewed if you load a database multiple times without clearing it in between.

   add_image($image, $id)
       Adds the image object to the database, keyed against the numeric id $id. This will compute the Haar transformation for a 128x128 thumbnail
       of the image, and then store its norms into a database in memory.

   remove_id($id)
       remove id from database, and you should "savedb" to save the changed database.

   query_id($id[, $results))
       This queries the internal database for pictures which are "like" number $id. It returns a list of $results results (by default, 10); a
       result is an array reference. The first element is the ID of a picture, the second is a score. So for example:

	   query_id(2481, 5)

       returns, in a shoot I have, the following:

		 [ 2481, -38.3800003528595 ],
		 [ 2480, -37.5519620793145 ],
		 [ 2478, -37.39896965962   ],
		 [ 2479, -37.2777427507208 ],
		 [ 2584, -10.0803730081134 ],
		 [ 2795, -7.89326129961427 ]

       Notice that the scores go the opposite way to what you might imagine: lower is better. The results come out sorted, and the first result is
       the thing you queried for.

SEE ALSO

       http://www.imgseek.net/

AUTHOR

       Simon Cozens, <simon@cpan.org> Lilo Huang, <kenwu@cpan.org>

       All the clever bits were written by Ricardo Niederberger Cabral; I just mangled them to wrap Perl around them.

COPYRIGHT AND LICENSE

       Copyright (C) 2005 by Simon Cozens, 2008 by Lilo Huang

       This library is free software; as it is a derivative work of imgseek, this library is distributed under the same terms (GPL) as imgseek.

perl v5.14.2							    2008-02-09							  Image::Seek(3pm)