Cool stuff Rod; running it in my XP VM (and also installed it via Sandboxie because I'm of the paranoid type; lol) and it works great. Not sure what the issue is for Win7 but since several folk said it wouldn't work, I didn't bother. That's what virtualization is for; try it and you'll like it. lol

May run in Ubuntu via wine, but too lazy to try that.

I am guessing it will run in Fedora via wine.
Now you have a new toy to play with Lyle.I can't wait to see your creations.

Hello Lyle.
What Resynthesizer version are you using?
I assume that with old version you mean 0.16 version. I think I have the version 1.0.1 because plugin information mention it is from 2010.
Now I see that there is a 2.0 version:
https://github.com/bootchk/resynthesize ... /ChangeLog

Well, I've done this with Resynthesizer 1:

Perhaps the result can be improved, because I do not know exactly how to set the variables.

Both .16 and 1.x (not sure the one; too lazy to find out; lol) Yafu.

I have both also and the older version (executable binary), seems to work much better than the newer python version for this kind of operation.

Ok, this is the result using Resynthesizer 0.16:

If you want compare both images (v1 and v0.16) dont look at center because center is source image.

What are your settings YAFU?

I have created an image (1200x1200) with white background (I had had some problems if I used transparent backgrounds.). I have pasted the source image in the center. Then I selected with "Fuzzy select tool" the white outside. And applied Map > Resynthesize​​:
In "Options" tab, I have marked the three options in "Output".
In "Tweaks" tab:
Neighbourhood size: 100
Search thoroughness: 500
Sensitivity to outliers: 0.12

In Resynthesizer v1 in "Options" tab I have had to select the source image as "Texture source". In Resynthesize v0.16 that is not necessary.
Edit:
In the method I had used before, I realized that it was not necessary to paste the source image on the white image. My mistake is because I had tried creating a transparent image, and does not work on transparent backgrounds.
So, just open the source image and then create a new image with white background. Apply Resynthesizer on this new image choosing the source image as "texture source". In this way you will not notice that the center does not match the rest.
====
Edit 2:
I compiled Resynthesizer v2.0 and this is the result:

So you can compare V0.16 v1.0.1 and v2.0. I did not notice a big difference.

I think it is possible to better match the source image in the center with the rest, if the filter is applied on the center this time, choosing as source texture the new image we got. It's a matter of doing more tests.

Forgot about the better way to use Resynthesizer. The new version works great with this too. Just open your image, create a solid fill (I use white) on top layer, then open a new image set to smaller dimensions then your target (I set it for 640 by 640) and then run resynthesizer as follows:



Result (yes it's seamless; did not adjust contrast this time):

I actually used the new version (1.x) for that one K1Te. Again, forgot about using this technique. Similar technique for creating Corn Maze/Crop circles (except don't need borders seamless setting).

So instead of mapping to a border selection you fill in the white border.
That worked really good Lyle and YAFU.
I guess i will compile resynthesizer 2 then.

Thanks guys.

HI guys
I am probably the last who should know how to
but
I was reading a new tutorial by tstandiford who is showing how to restore old photos
and he is using "frequency Separation" in (of course) Gimp 2.8
Would this method help make a seamless render too?

Possibly; another cool way to clean up the seams is to use a low frequency even Script-fu.

In the method I had used before, I realized that it was not necessary to paste the source image on the white image. My mistake is because I had tried creating a transparent image, and does not work on transparent backgrounds.
So, just open the source image and then create a new image with white background. Apply Resynthesizer on this new image choosing the source image as "texture source". In this way you will not notice that the center does not match the rest.

YAFU where did you get the version 2 src files?I checked git and it looks like those are 9 months old?

Yes, this 9 month old version is 2.0 version.
https://github.com/bootchk/resynthesize ... /ChangeLog
I do not know on windows, but on my distro I only had 0.16 and 1.0.1 available.
Actually I do not know how to see which version it is. I'm just assuming because the years mentioned when I find the plugin from Help > Plugin Browser.

I believe version 1x fixed the need to match layers with alpha or not Yafu (though I could always be wrong; lol). For sure, .16 and earlier the layers had to match (if your source had an alpha, then your target also had to have an alpha layer and the opposite scenario of course).

Mmm, I do not know.
What I mean is: In GIMP I open a .png image uploaded by K1TesseraEna, which contain alpha channel. Then I create a new image with a transparent background and I apply Resynthesizer with the steps I mentioned, and I get nothing. It works fine when I generate a new image with a background color (it works even if it has alpha channel)