I am working on a project to measure the various components of light in a night scene and need to stack and average multiple images.  I am doing this using layers in GIMP 2.10.8 and hope to reduce the opacity of each stacked layer; eg 100%, 50%, 33%, etc.  However in a simple test using just two layers (Black, 0.000, at 100% opacity and above that White, 1.000 at 50% opacity) the resulting "visible layer" pixels had a value of 0.737 not the 0.500 I had expected.  I am not sure what I am doing wrong but would appreciate any advice on how to stack say 10 photographic images which gives equal weight to the pixel values in each image?

Hello, everybody.

I've been looking on Youtube for tutorials on how to do color scales to make Synthwave image manipulations using GIMP. So far, the only videos I've found have been for doing it in Photoshop, and even then, almost all of them have been in either Spanish or Portuguese (and I speak English). For example:
https://www.youtube.com/watch?v=eePbtDQmylc
It's been a compounded problem for me because there's been nothing available for Synthy/Retroey-type art. I've tried using pretty much everything in under the "Colors" tab in Gimp 2.10 (Balance, Temperature, Saturation, Shadows-Highlights, Levels, Curves, etc). I can't figure out how to make it work.

Can anybody offer any techniques?

I got Gimp 2.10.8 installed and running on my 'Windows Subsystem for Linux' on Windows 10 Pro 64-bit, starts very quickly which is a welcome change to the normal Windows waiting experience, however I can't seem to add any plug-ins, palettes, brushes etc etc to the setup.. 
I put them in 'home/zero01/.config/GIMP/2.10/plug-ins (../palettes ../brushes)' etc  but to no avail - does anybody have any information on this? maybe a command-line (bash) fix? 
I managed to get gmic up and running with 'sudo apt-get install gimp-gmic'.
Thanks.

Wherebe be my 100px X 100px avatar I uploaded manbe? It's not showing up

Thanks in advance

Luna Street Japan 1957 
- Cropped
- Color balance adjusted (a lot of yellow added)
- Brightness/contrast adjusted,
- Saturation bumped up
- Brushfiy filter via the G'MIC plugin
- Signature added for effect



Original image: [photo taken by my father while stationed in Japan in 1957 during his service in the US Air Force


My Son - OBX - 2008~ish
- Colors/Auto/White Balance
- Smudge Tool for brushed effect
- Filters/Artistic/Apply Canvas

... or do you just have to attach a file?

UPDATE: Disregard. I figured it out. It's BBC code ([img]photo link here[/img])

Let say I want to have a folder containing my plugin. As I understand, GIMP only looks for plugins file named as the folder. For example, this works ok:

I just downloaded GIMP 2.10.8 on Feb. 23rd.  I am on Win 7 32-bit. Home desktop PC.

When I try to open a file from either my desktop c\ drive or a thumb drive, GIMP does not recognize any file type. I have tried TIFFs, JPEGs and PNGs.

I tried uninstalling and reinstalling GIMP, but this did not help.


Thanks for any advice.

[attachment=2656][attachment=2657]

I have a svg file of a magnifying glass.  I want to place the image of the shark inside the magnifying glass.  What's the easiest way to do it?

I've tried to break it into layers, but it looks like that is for flat pictures with a few colors.  The magnifying glass I have is more realistic and I would like to keep it that way.

Thanks for your help.

Carl

An earlier post asked about using the old GAP package, problems with that and also the included morph plugin.

As a trial, the whole of the old-and-flakey GAP package is not needed, the morph plugin on its own works fine.

There are any number of howto's/tutorials on the internet for using GAP, if you are into animation, go for those.

Morphing 2 images together can be a bit of fun, so I have attached for Windows users (linux users look in your distro GAP package) 
gap_morph.exe which provides the morphing interface
export-jpg.py which just exports all the layers to separate files if you want to make a video (plugin thanks to Kevin)

Unzip and put in your Gimp user profile plugins folder C:\Users\"yourname"\AppData\Roaming\GIMP\2.10\plug-ins

You might just want a gif animation but often a video is both better quality and a much smaller file size.

Some hints on making a video. Plenty of video editor/tools around. I suggest Avidemux http://avidemux.sourceforge.net/

...and...the inevitable video about the whole thing





direct link https://youtu.be/8zXVenm6OgY duration 7 minutes

Attached Files

  gimp-morph.zip (Size: 92.92 KB / Downloads: 2313)