@Epsilon: All on Zenphoto works with the object model framework as the base. Lots of plain template function do directly work if you are in the right context (album, image etc). Outside you most always need to pass an object of the image or album to get a result. `http://www.zenphoto.org/news/zenphotos-object-model-framework
Info on all functions you find here: http://www.zenphoto.org/documentation/elementindex.html
(use the browser page search to find something). Note the difference between normal functions and class methods ;-)
You can also get the size of the full image by using `getSizeFullImage($image)` where `$image` must be an image object unless you are on the single image.php page.
There is also `isLandscape($image)` to find the orientation of the (uncropped) image.