This is Perl module Image::libsiftfast. INSTALLATION Image::libsiftfast installation is straightforward. If your CPAN shell is set up, you should just be able to do % cpan Image::libsiftfast Download it, unpack it, then build it as per the usual: % perl Makefile.PL % make && make test Then install it: % make install DOCUMENTATION Image::libsiftfast documentation is available as in POD. So you can do: % perldoc Image::libsiftfast to read the documentation online with your favorite pager. Takeshi Miki