[Gimp-user] invert not working

[rich2005 <forums gimpusers com>]

> New to Gimp. I have 2.8.22. I have two projects. 1. I simply want to
> invert a photo.

You need to define 'invert' I think of inverting the colours, but you might mean
rotating 180 degrees or 'flipping' ie mirroring the image, all different tools.

> 2. I wanted to try Liquid rescale to extend a background. As I'm using
> OS X, Wikidots says it should be already in my layer menu — it's not.

For OSX  (not the best of operating systems for Gimp) it depends on the Gimp
package you installed. Liquid Rescale is normally a separate plugin, that you
might compile/install yourself. I think the OSX version from www.partha.com
might include it.

The are various ways of 'extending' a background. It all depends on the image.
Plain colour background? Very complicated background? Lots of colours? Greyscale
image? You need to give details of the 'photo'

> Closing gimp, opening and trying again for either — no effect.

It is not Gimp, it is user inexperience. Gimp is a complicated application with
a steep learning curve. You are not going to become an expert overnight.

-- 
rich2005 (via www.gimpusers.com/forums)