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Making a Photo Collage

Nov 16, 2013, 23:57
Post: #1
Photo Making a Photo Collage
Had an idea for Veterans Day but didn't know how to do it.
Photos come in rectangles and I have separate photos of all the veterans in my old high school class. I'd like to put them all together into one collage, but if I did I know when one gets near another, one displays on top and the other under/bottom.
I seem to recall hearing about making a photo with a transparent background and this sounds like the solution to my problem. But how do you make the photos with transparent backgrounds and how do you define the background so that all appropriate areas are taken care of...... like maybe a hairdo with background showing through holes.
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Nov 17, 2013, 02:29
Post: #2
RE: Making a Photo Collage
If you want to select the person and delete the background. One way is to make a selection mask.

You have black and white, one being the transparent pixels & the other opaque(solid) selection.
From there, you can manually paint it. I made a tutorial here.

It will take some practice to select most of the hairs, so good luck if you go this route!

http://gimpforums.com/thread-selecting-f...7#pid21197

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Nov 17, 2013, 10:34 (This post was last modified: Nov 17, 2013 10:59 by rich2005.)
Post: #3
RE: Making a Photo Collage
Just a suggestion. As the above posts say there is a lot of work involved in completely removing a background and keeping fine detail such as hair.

So maybe keep the background and make it into a feature around each individual.

[Image: OiPQtsL.jpg]

What you need to know
Add transparency to an image (Layer -> transparency -> add alpha channel)
Make a selection - various tools
Invert a selection (select -> invert)
Optional, feather the selection (select -> feather)
Cut a selection (Edit -> cut)
Some of the edges were 'erased' with fuzzy or irregular brushes rather than use a selection.

when finished
Copy your tweaked image (Edit -> Copy)
Paste as a new layer into your Collage (Edit -> Paste as -> New layer )


With these as layers over a background,
You can then move them around the canvas.
You can move the order of the layers to adjust overlaps

Then you can add text - names etc
All sorts of things.

edit: remember to save your work as a Gimp xcf file, that will preserve all layers, transparency, text if you need to come back and edit. When completely finished you can export as some other format, jpeg or png

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