ImageMagick: possibly OT

[Bill Oliver]

On Thu, 17 Sep 2015, Timothy Murphy wrote:

> Shaheen Bakhtiar wrote:
>
>>> I want to crop a PNG picture.
>>> I see how to do it with ImageMagick,
>>> once I know the pixel-positions of the corners of the rectangle.
>>>
>>> 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
>
>> Gimp?
>>
>> But I’m still not sure what the questions is. With Gimp you can use the
>> rulers to pull in guidelines than can be used to snap the cursor, bounding
>> boxes, etc..
>
> Thanks for your response.
> I'd forgotten about gimp
> (which I've always found a little difficult to use,
> probably because it can do so much).
> But I've downloaded it, and just need to learn how to guillotine.
>
>


You can also write a little script for gimp if you don't want to do it
interactively.  See:

http://superuser.com/questions/216177/command-line-to-automatically-crop-an-image


Personally, I don't like scripting gimp, but to each his own.


billo