ImageMagick: possibly OT

[Tom Horsley]

On Thu, 17 Sep 2015 12:11:17 +0100
Timothy Murphy wrote:

> I'm wondering if there is a way of imposing a grid to read these numbers,
> either with ImageMagick or some other application that runs under Fedora ?

If you want to examine the picture interactively to pick the place
to crop, you might as well just use gimp for the entire operation, but
you can certainly use gimp to pick off pixel positions as well.