Programming Web Graphics with Perl and GNU Softwar

Name

filter — image resize filter

Synopsis

$image->Set(filter=>string)
$image->Get('filter')

The filter attribute allows you to specify the filtering scheme used by the Zoom( ) or Transform( ) method when resizing an image. The value of string can be:

Point	Hamming	Catrom
Box	Blackman	Mitchell
Triangle	Gaussian	Lanczos
Hermite	Quadratic	Bessel
Hanning	Cubic	Sinc

The default value is Mitchell. In general, the Mitchell filter gives the best results and the Box filter is the fastest.