Dear Rudolf,

It is working for me.
Using my figure, I got 
(45126287sp,31048991sp) 

(1372,944) 


As Hans said, either change ~ to some path or set the directory of externalfigure.

Best regards,

Dalyoung

> 2019. 2. 24. 오전 5:58, ntg-context-request@ntg.nl 작성:
> 
> I fear it doesn't work. I used the above code with a test-picture of mine
> (in .png and .jpg version) and got:
> 
> (0sp,0sp)
> (0,0)
> 
> Now I'm baffled what the explanation could be. Are "mill" or "cow" somehow
> specially prepared? I used:
> 
> ConTeXt  ver: 2018.03.16 22:20 MKIV beta  fmt: 2018.3.21 and
> getfiguredimensions[~/my-test-picture.png]
> 
> Rudolf