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  Semi-transparency blends differently before and after PNG-export
Posted by: M1rch - 05-03-2020, 06:34 PM - Forum: General questions - Replies (2)

Hi. Sorry for the generic title but I couldn't explain the problem I'm facing in a few words.

I'm facing this weird problem: I start with an image (a hand drawn picture made with Sketchbook, exported in photoshop format and imported in Gimp 2.10.18) that only contains a layer with semi-transparent black drawings, and a background white layer. Gimp imports it correctly, or at least everything looks good. If I hide the white layer and I export only the black-and-transparent layer into PNG, and then I open the exported image I have this behaviour: the image look the same, but when I add again a white background layer, the image blends differently with it, it looks washy, with less contrast and with lighter blacks. I attach an example to illustrate the behaviour.

As you can see in the picture below, the exported PNG looks the same until I add a background again.

Does anyone knows what's happening here?



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  All colors in photo
Posted by: Puzzler - 05-03-2020, 03:31 PM - Forum: General questions - Replies (3)

How do I determine all colors in a photo?

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  Discoloration using pencil tool
Posted by: TinGamerTV - 05-02-2020, 05:45 PM - Forum: General questions - Replies (2)

     Look at the attachment.

This is what happens in GIMP when I try to draw. At the beginning there's a slight discoloration using the pencil tool. How do I disable this?

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  Fade image to white
Posted by: Thorski - 05-02-2020, 05:23 PM - Forum: General questions - Replies (2)

I am trying to get background images for a PPT and need the image to fade from solid or nearly solid white on the left to no white about mid 16:9 image (I am overlaying blue text). I keep trying various combinations of settings, but the best I can do still ends up with a discernible edge at the end of the fade. Or, there is a thin white line near the end  of the fade.

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  Extract Text from text file script?
Posted by: Zero01 - 05-02-2020, 07:33 AM - Forum: Extending the GIMP - Replies (5)

I had a text file extracting script at one point, lost it now but I seem to remember there were a lot of options including which font, fontsize/colour, margins etc to use to display it in Gimp, very handy script, but unable to locate - hoping someone out there knows what I mean and has a copy/link to download - Thanks a lot

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  Resynthesizer install
Posted by: meetdilip - 05-02-2020, 01:51 AM - Forum: General questions - Replies (1)

http://www.logarithmic.net/pfh/resynthesizer

I was told that this plugin is very useful. However, the above link directs to GIMP Registry which says it is closed now.

It will be great to find out how to use it in Kubuntu 20.04. Thanks.

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  Some plugins based on machine learning for Gimp
Posted by: Ofnuts - 05-01-2020, 08:31 PM - Forum: Watercooler - No Replies

It used to be called AI, now it"s machine-learning. Some applicationd to image processing with Gimp.


Demo video (warning, somewhat nausea-inducing): https://youtu.be/U9k1k7IpAlg

Codehttps://github.com/kritiksoman/GIMP-ML


Warnings:
  • Very experimental (read: just for the geeks among you, if you struggle installing a script look elsewhere)
  • Linux and OSX only for the time being
  • 2GB download (1.1GBML data, about 800MB of Python extensions)
  • Zero doc for the time being beyond the project's home page and a few demo videos


My own tries with the deblur:

Before: Picking  a picture where the inaccurate focus competes with some unskilled-panning-induced motion blur (a rather frequent occurrence in y collections)

   

After: Some parts (markings) are clearly less blurry. Plus it was a trick picture given that the propeller is blurry (if it isn't, it seems that the plane's engine has stalled).

   

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  Clock face with color
Posted by: hendrikbez - 05-01-2020, 05:45 PM - Forum: General questions - Replies (14)

I need help, I want to make a clock face (for watch) with the numbers 3, 6, 9 and 12 with color and other black color, but I do not know how to start with it.

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  Vitamin bottle labels
Posted by: Youraturd - 04-30-2020, 10:08 PM - Forum: General questions - Replies (7)

Hi,
I’m a beginner using gimp I know how to use most of the basics, I am currently trying to design my own supplement range. I have managed to create a box design in gimp and I have created a label for my supplement.

I am trying to find a way of wrapping my label around a vitamin bottle, is there any good tutorials for this?

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  Ghostscript & PuTTy
Posted by: PeaceLuth - 04-30-2020, 09:37 PM - Forum: General questions - Replies (2)

Back in 2015 when I installed GIMP it wouldn't work scheit. I checked around and was told I should load PuTTy and Ghostscript. I am on the latest GIMP on a Win7 box, soon to be replaced with a Win10 box. Are those two programs needed any more?

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