Is the automatic crop option supposed to work when you have an object in front of a fairly standard background? I don't think I've seen it work. The intelligent scissors tend to get most of an objects but with lighting being variable it's never as easy as a manual crop.

Several different ways to extract a foreground other than the scissors tool. As you say if the background is complex then the colour or fuzzy select tools might only do a partial selection. But that might be enough combined with the quick mask to paint in 'missing bits'. You should also consider using a layer mask to the same effect.

Then the paths tool, often overlooked, but for smooth edges gives a good selection. A bit labour intensive.

The most automatic is possibly the foreground select tool.

https://docs.gimp.org/en/gimp-tool-foreground-select.html

Made my rough selection around the area and painted in the area. https://i.imgur.com/CxactcJ.jpg

Gives a selection like: https://i.imgur.com/GVImhkI.jpg

But that is not the same as an Auto-Crop: https://i.imgur.com/SXk44fG.jpg

There are plugins to assist, in particular I find the g'mic plugin www.gmic.eu with interactive foreground select useful.

rich: www.gimp-forum.net

On Mon, 2017-11-13 at 01:32 +0100, jorglueke wrote:

Is the automatic crop option supposed to work when you have an object in front of a fairly standard background?

No - it relies on the "background" being a solid colour all of exactly the same pixel value. It's best for automatically-generated images.

Liam (ankh on IRC)

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