How to get actual image size

[vayu]

Hi.

 

I am trying to get the actual size of the image loaded on a product page.

 

I see that the theme I use have used this variable $largeSize.width to get the width of the "large" image.

 

How can I get the width of the actual image?

 

Or if I add a new size to the images settings and name it "actual_size" and set width and height to 0. Then how can I get the width and height of this image setting?

 

 

Thanks

Vayu