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  Glimpse
Posted by: rich2005 - 05-02-2021, 11:04 AM - Forum: Watercooler - Replies (5)

Very few sensible people on reddit, except Ofnuts and a couple of others. There was a post about the various versions of Gimp. One is for people who think "Gimp" name is offensive.

All in the mind. This probably the original (and only) definition, from my Concise Oxford Dictionary (concise being one volume 1550 pages)

   

If you want to use other definitions, by all means, but as usual a nice old word hijacked for other uses.

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  Paintbrush paints noisy strokes at low sizes
Posted by: cactushead - 05-01-2021, 11:30 AM - Forum: General questions - Replies (4)

When I zoom in to 2x zoom and draw with the mouse with the tool options as pictured, the quality of the stroke looks noisy and bad. In the long diagonal stroke, the centreline is noticeably darker in some parts and it makes the width look uneven. It's a little less noticeable at 1x zoom. There are sometimes 'bites' taken out of the line, when there's a light-coloured pixel where I'd expect one of the same grey colour as as its diagonal neighbours along the line. These bites are noticeable even at 1x zoom. As well as these issues, when I draw a nearly vertical line by dragging the mouse down and slightly to the right, it seems as though the brush dabs are jittering from side to side down the length of the stroke. Why do these things happen? In drawing programs such as Krita or Paint Tool SAI, I've not reproduced such issues.

The three dots are just for reference---they are single brush strokes in a pixel corner, a pixel edge, and a pixel centre.

At 4x zoom and showing brush settings:
   

At 1x zoom:
   

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  automate steps in gimp 2.10
Posted by: alain.roger - 04-30-2021, 07:51 PM - Forum: General questions - Replies (2)

Hello,

I would like to know if there is a way to automate some repetitive tasks in GIMP 2.10.x ?

e.g. I have several photos and I always to the same few tasks in the same order in purpose to remove the background and I would like to know if there is a way to script all those tasks or a recorder for this thing ?

i.e.
- turn image to greyscale
- change levels
- copy a mask from obtained photo in BW
- create mask layer from previous step
- get person/object only while background is transparent
- save/export result in png file.

something like that :-)

thx

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Question How would I raise an image to make it look more real?
Posted by: Nuwat - 04-30-2021, 02:06 PM - Forum: General questions - Replies (1)

Hello, I was wondering if anyone knew how to, kind of like, raise an image closer to the screen, or give it more levels? I'm working on a patch in a video game and noticing the differences between a patch I found online and editing it versus a digital one, the real patch has a certain weight to it that makes it feel more real. I was wondering if there was a way I could do that to my digital one as well? Here's an imgur link for example of what I mean

Thanks to anyone that helps!

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  Installing pgimp package in Ubuntu Studio 20.10
Posted by: rgbellotti - 04-29-2021, 10:22 PM - Forum: Linux and other Unixen - No Replies

I noticed that Gimp does not have python-fu available (only script-fu), and from what I can tell this is because Ubuntu Studio 20.10 doesn't come with python 2.7 preinstalled.  So I installed python 2.7 and the necessary 'numpy' and 'typing' packages with pip, but am still getting an error when I try to install 'pip3 install pgimp' or even 'pip install pgimp'

Here is the terminal error message involved:

pip3 install pgimp
Collecting pgimp
 Using cached pgimp-1.0.0a22.tar.gz (140 kB)
   ERROR: Command errored out with exit status 1:
    command: /usr/bin/python3 -c 'import sys, setuptools, tokenize; sys.arg
v[0] = '"'"'/tmp/pip-install-e4gzeesl/pgimp/setup.py'"'"'; __file__='"'"'/tm
p/pip-install-e4gzeesl/pgimp/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"
', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.clo
se();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /tmp
/pip-pip-egg-info-9br474gc
        cwd: /tmp/pip-install-e4gzeesl/pgimp/
   Complete output (7 lines):
   Traceback (most recent call last):
     File "<string>", line 1, in <module>
     File "/tmp/pip-install-e4gzeesl/pgimp/setup.py", line 42, in <module>
       check_python2_installation()
     File "/tmp/pip-install-e4gzeesl/pgimp/setup.py", line 37, in check_pyt
hon2_installation
       raise GimpInstallationException(
   __main__.GimpInstallationException: At least one of the following packag
es is missing in the python2 installation: numpy, typing
   ----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Chec
k the logs for full command output.

#####################


Even though I already have numpy and typing installed, it still gives the same error message.  Do I need to configure python2.7 after the initial install before it gets recognized properly?  Gimp on my other machine (Ubuntu plain 20.04) has python-fu working already, yet it only has python3 installed and not python2.  So I'm a bit confused as to what the actual conflict is, or what the requirements are for python-fu.


well for the time being, I installed the latest version of GIMP as of now (v2.10.24) with flatpak and python-fu is available now and working. *shrug* Not the ideal fix but it's an option

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  Hello from a Gimp fan
Posted by: cli345 - 04-29-2021, 05:14 PM - Forum: Watercooler - No Replies

Hello, Smile

I didn't see this subforum. So, I believed that to present oneself was not intended and I started to post.
I firstly went to gimpchat.com. There, I presented my "photo to cartoon" plugin.

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  Grayscale Image Creation (Not Converting)
Posted by: AdriNat - 04-29-2021, 12:27 PM - Forum: General questions - Replies (18)

Hi,

Sorry but i could not find an answer in the chat or in google. I am new and i am looking for a tutorial / Script or any advice of how to make a grayscale image like the one attached. My question is not how to convert an image or photo to grayscale (this is what appears when searching in google) but how to make this specific type of grayscale image a technique that is also some time used in real photos. Any advise / suggestion will be appreciated.



Attached Files Image(s)
   
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  Using Gimp to reduce noise in series of X-Ray Dataset?
Posted by: DuroHeci - 04-29-2021, 09:53 AM - Forum: General questions - Replies (1)

Hello dear Gimp Pros,

bit of an unusual topic Big Grin

I'm doing chemistry/material research. In part of my research, X-Ray data is created in the form of gray scale images. I wonder if I could use image processing in Gimp (or maybe other software) to enhance my data quality.

The data in the images consists of 3 parts:
1) Reflection points: seen as dark spots in the images. The position, size and shape (round, oval) is part of the data acquisition.
2) Fluorescence: seen as a centered dark shadow.
3) random Noise: single points all overall the image. This noise has a preferential direction (up & down), which is due to the detector type used.


The images can be created in different "Cutoff" levels, which refer to an internal algorithms of the device to remove data from the image, based on the intensity of the recorded signal for each pixel. There are 10 levels.

In one image I marked very weak signal points, that are barely visible. The position of these points can be calculated from the other data points, so there is a point to be expected.

The position and shape of the reflection points is used for further research, so this is the data I would like to extract more precisely.

Is there a possibility to reduce the amount of the noise and fluorescence from the different cutoff levels? The process would have to be a fixed routine without manual work, so it can satisfy scientific standards.

Best regards,
DuroHeci


answer for more images

and the marked image



Attached Files Image(s)
                                           
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  Help - out of gamut colours / borked palette?
Posted by: brulleks - 04-28-2021, 08:07 PM - Forum: General questions - Replies (8)

I've been using gimp for several years now, various versions, and usually just ignore the out-of-gamut warnings as I never print anything, and likely never will.

Suddenly today a huge chunk of colours seems to have disappeared from my palette (see image) at some point while I was working, and of course they include hues that I want to use.

I have tried changing to every colour mode, turning off all colour management options, uninstalling gimp and reinstalling the new version ( I was previously on 2.6), deleting my profile, and then reinstalling again, but this problem persists.

Am I missing something obvious (probably...), or has something gone drastically wrong here?

I would appreciate any help / suggestions anyone can give, as I rely on GIMP for my work! Thanks.



Attached Files Thumbnail(s)
   
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Shocked Crop To Content removing non-empty borders
Posted by: Krikor - 04-28-2021, 01:49 PM - Forum: General questions - Replies (3)

Hi,

About the function Layer ➤ Crop To Content it would be expected that only the empty areas (with transparency) would be removed from the layer and if there were no empty areas nothing would be changed.

Why then, in some cases, does the cut remove areas with content?

In the example below, only the crop to content filter was applied to images 01 and 02.
• Image 01
   
As seen in images 02 and 03, part of the content of these layers was removed leaving a transparent area.
• Image 02
   
• Image 03
   
Any configuration that I am losing and that is generating this unwanted result? A bug? What would be the explanation?

* Original image created by teapot in GC.

Thx

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