Is there a way to output an image in another format (e. g. png to jpg)?

[titanium]

I searched in the forum and studied the cheat sheet, but I didn't find an answer to my question yet, therefore I'm asking

Is it possible to upload a picture, let's say in png format, to resize it and to output in a different format, e. g. as a jpg? As far as I know, PW always outputs the image in the file format it was uploaded. It would be nice if I could give a parameter to the resize function, like this for example:

$options = array(
  'quality' => 90,
  'format' => jpg
);

$thumb = $image->resize(600, 400, $options)->url;

[pwired]

Lots of third party libraries, modules, apis, etc, out there.

http://www.phmagick.org/examples/examples/convert

http://www.phpclasses.org/package/2073-PHP-Convert-images-between-several-formats.html

http://www.developphp.com/view.php?tid=1146

http://stackoverflow.com/questions/5060835/how-to-convert-all-images-to-jpg-format-in-php

http://java.dzone.com/announcements/java-library-images-conversion

[ryan]

PW doesn't currently have to option to convert an image from one type to another.