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remove back ground

Sep 17, 2014, 09:57
Post: #31
RE: remove back ground
thank you for your reply we have done what you have advised and gimp 2.8 seems to be working thanks    
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Sep 17, 2014, 10:01
Post: #32
RE: remove back ground
(Sep 17, 2014 09:57)gizmo Wrote:  thank you for your reply we have done what you have advised and gimp 2.8 seems to be working thanks

That is good. I see G'mic installs to the profile folder which is good to know.

Give me an hour or so, all being well I will post that demo using G'mic for cutting out the background.

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Sep 17, 2014, 10:57
Post: #33
RE: remove back ground
Here is a demo of that gimp-gmic filter for removing a background. Look in the gmic filters menu contours -> extract foreground.

http://www.youtube.com/watch?v=IGNzMiwzOuI&hd=1

It might take some of the pain out of your work but remember, a single tool is rarely a solution, you will have to learn about, cloning, selections and all the rest.

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Sep 17, 2014, 15:15
Post: #34
RE: remove back ground
hi thankyou for the advice and videos , at the moment i am trying to copy and paste but the image i have it is not looking very good at the moment what i want to do is to replace certain section but it is of a circle , question is when you copy and paste can you turn the image around so it will some where else , if you look at the deers mouth area it is half of the circle but if i try and take some from right or left of the mouth it does not look like circle so would it be ok to copy and paste from the bottom of the circle and turn the selection around so it will fit better thanks    
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Sep 17, 2014, 17:03
Post: #35
RE: remove back ground
(Sep 17, 2014 15:15)gizmo Wrote:  ..if you look at the deers mouth area it is half of the circle but if i try and take some from right or left of the mouth it does not look like circle so would it be ok to copy and paste from the bottom of the circle and turn the selection around so it will fit better thanks..

You are getting the hang of it Wink You certainly can select from some other part of the image to make a correction. You will have to do some moving and rotating usually and in this case flip vertically.

It takes longer to do this than a video. Lots of screenshots so not inline.

First thing, Gimp has an elliptical select tool which will make a perfect selection.
http://i.imgur.com/3pFTSl5.jpg

If you want to improve the selection use the quickmask
http://i.imgur.com/81peiGr.jpg

Quickmask off, selection looks like this
http://i.imgur.com/SJpf0Gx.jpg

Make sure you have an alpha channel, invert the selection, cut the selection.
http://i.imgur.com/kABZn0B.jpg

To replace the section at the top, make a suitable selection on the bottom, I used the free select tool.
http://i.imgur.com/RgVi3l3.jpg

Now copy that selection and paste it as a new layer. It will position in the top corner.
http://i.imgur.com/3gO9d3U.jpg

Now turn any selections off. Use the move tool to get roughly position that small layer and use the flip tool to flip the layer vertically.
http://i.imgur.com/T3iIqxD.jpg

Use the rotate tool and the move tool as much as required to move the layer into position and get a match.
http://i.imgur.com/RL31GEr.jpg

Might not be perfect but that is life. There is a small overlap that can be fixed.
http://i.imgur.com/3iYLHyy.jpg

Touch it up using the eraser tool to fix the overlap
http://i.imgur.com/GSPbqK0.jpg

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