Display resolution in details, original pictures in another folder (big)

[knsin0]

Hello,
i would like to display the resolution of the images in the details pages, i suposse it can be done by adding something like {widht}x{height}, but there is a problem, im using this mod written by V@no:
Show original image in new window by clicking on image
http://www.4homepages.de/forum/index.php?topic=3236.0

With this mod, the original size pictures are ina a folder called "big", for example, for the category 43, the original pictures are in /data/media/34/big . How can i get the resolution of that images? 

[thunderstrike]

Use {width_height} in template ...

[knsin0]

With this mod, the original size pictures are ina a folder called "big", for example, for the category 43, the original pictures are in /data/media/34/big . How can i get the resolution of that images?

[thunderstrike]

If only need answer for MOD, please post in [Mod] Show original image in new window by clicking on image topic.

[knsin0]

will do, thanks.