[Gimp-user] Adding threshold to guillotine?

[bolete <forums gimpusers com>]

> Guessing you tried divide-scanned-images script. Best I got was 4
> cards.
>
> You might be able to do it using the Gimp g'mic plugin - the extract
> object filter.
>
> Draw in lines rather than set guides. 
>
> A 2 minute demo https://youtu.be/fQ6zTxDOmaA 
>
> A bit of care and I think you could get a decent result.


Rich, thank you for the tutorial again. I combined the extract objects with the
fxfoundry rule of thirds grid, which automatically divides into N rectangles
based on image information, then thickened it with an offset. The moral of the
story is that border space between scans is important.  I accidentally clicked
the align tool and you can snap gridlines around based on image data, so a bonus
solution there for someone like me doing hundreds of error prone scans!

Thank you for your help.  Attached victory shot. 

Attachments:
* http://www.gimpusers.com/system/attachments/706/original/rich404_cut_scans_into_layers.png

-- 
bolete (via www.gimpusers.com/forums)