<p dir="ltr"><a href="http://www.gimp.org/tutorials/">http://www.gimp.org/tutorials/</a> </p>
<p dir="ltr">Should provide you with some quicky lessons to achieve what you want.</p>
<p dir="ltr">Fred Roller</p>
<div class="gmail_quote">On Sep 17, 2015 11:40 AM, "Timothy Murphy" <<a href="mailto:gayleard@eircom.net">gayleard@eircom.net</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Shaheen Bakhtiar wrote:<br>
<br>
>> I want to crop a PNG picture.<br>
>> I see how to do it with ImageMagick,<br>
>> once I know the pixel-positions of the corners of the rectangle.<br>
>><br>
>> I'm wondering if there is a way of imposing a grid to read these numbers,<br>
>> either with ImageMagick or some other application that runs under Fedora<br>
<br>
> Gimp?<br>
><br>
> But I’m still not sure what the questions is. With Gimp you can use the<br>
> rulers to pull in guidelines than can be used to snap the cursor, bounding<br>
> boxes, etc..<br>
<br>
Thanks for your response.<br>
I'd forgotten about gimp<br>
(which I've always found a little difficult to use,<br>
probably because it can do so much).<br>
But I've downloaded it, and just need to learn how to guillotine.<br>
<br>
--<br>
Timothy Murphy<br>
gayleard /at/ <a href="http://eircom.net" rel="noreferrer" target="_blank">eircom.net</a><br>
School of Mathematics, Trinity College, Dublin<br>
<br>
<br>
--<br>
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</blockquote></div>