If you want to let the selection you made to an image stand out, you may do:
0.(assuming you did the selection already)
1.duplicate the image (to let the source be used again and compare results)
2.duplicate tha layer (base for the effect)
3.duplicate the base to have a working later
4.add alpha channel (if not there)
5.cut (the selected area will be cleared)
6.invert the selection
7.apply a well striped gradient, like Shadow1 for instance, but Mandelbulb types are even better if you have some, using shape conical (sym), starting from the centre of the selection
8.set opacity to 75.0, layer mode to LINEAR_BURN
9.new layer from visible
10.apply a Circular Motion Blur (angle around 10; set X and Y to centre your selection)
11.new layer from visible
12.apply a Zoom Motion Blur (blurring around 0.35; set X and Y to centre your selection)
13.increase brightness and contrast (around +10, +25)

That's it.

Just another way to "evidence" the selected area (there are many...).

Example (not the best one, just one, you could do it better).

source:


result (using gradient shadow1):

This would have been the result using the gradient Mandelbulb_657, for instance:

A 3rd example (different subject and different gradient):

Thank you so much for this tut to give evidence to a selection in a photo. Nice and effective.
Two ones of my first tries. No good but it's a start.

That is such a nice, spectacular way to showcase the main subject of the photo, Dinasset! Love it!

Issabella, yours are wonderful, as always.

Dinasset, I have attempted this technique but each time, I get part way through and Gimp shuts down instantly. Do not know the problem. Will participate when I can get the problem resolved.

Thanks Pat, I hope and wish you can solve that problem soon.
Dinasset, this way to give evidence to one part of a picture is very effective and nice.
only a clarification, when you say these settings:
10.apply a Circular Motion Blur (around 10) Do you mean 0.10 ? The same when, Zoom Motion Blur (around 35) 0.35?
I like the results a lot.

Pat, I'm very sorry for your "crazy" Gimp.
Issa, for Circular it's really 10, but for Zoom you're right, it's 0.35.
Very nice Rose !

Today, Gimp is behaving better. I was able to complete some images.
Dinasset, I may be doing something wrong, but I could not use greater than 1.0 on Circular Motion Blur.

I love your results, Pat. very nice effects.
I have the same problem about the setting for Circular motion Blur. So, I set what I see nicer.

Pat, Issa, are you sure to look here?


Default is 5.00, I set 10.00 usually.

You are probably looking at X and Y.

Please, re-read the initial post, updated to better clarify.

Thanks Dinasset, I had a mistaken concept about settings. I just got the right process.
I hope this result is closer to your tutorial.

My last one for today. I added a bit of bevel to the central part.

These are very nice.
I like a lot the flowers.

Had a play with the selected area

Thanks Ella, I like it a lot.

I wanted to try, but until now I only used the gradient to PP to transparent or PP to AP (RGB) ... and no gradient other than those Gimp ...
So thanks for the gradient topic:
viewtopic.php?f=12&t=9253&start=0
and I just did a test with the gradient "hippie blanket" of AnMal but to go with my bottom "sky" I put in mode "Exlusion" to find the colors of the sky.But the result is not great.

Ella, a nice outcome.
Level_0 (you should change 0) You really stand out the planes.

Level_O, Here is a set of Mandelbulber gradients for your collection.