Welcome, Guest
You have to register before you can post on our site.

Username
  

Password
  





Search Forums

(Advanced Search)

Forum Statistics
» Members: 4,653
» Latest member: rf4f4rr4rf4
» Forum threads: 6,876
» Forum posts: 37,537

Full Statistics

Latest Threads
removing tricky backgroun...
Forum: General questions
Last Post: rf4f4rr4rf4
33 minutes ago
» Replies: 0
» Views: 11
Glitch art : weird or not...
Forum: Watercooler
Last Post: PixLab
7 hours ago
» Replies: 1
» Views: 217
Guide mishap
Forum: General questions
Last Post: rich2005
Today, 08:04 AM
» Replies: 2
» Views: 124
Getting the Tool options ...
Forum: Tutorials and tips
Last Post: Ofnuts
Yesterday, 10:19 PM
» Replies: 7
» Views: 6,637
select tool
Forum: General questions
Last Post: denzjos
Yesterday, 04:09 PM
» Replies: 4
» Views: 229
Tablet not usable
Forum: Windows
Last Post: rich2005
09-26-2024, 05:11 PM
» Replies: 6
» Views: 201
Script to detect and sele...
Forum: Extending the GIMP
Last Post: tomatoSauce23
09-26-2024, 03:16 PM
» Replies: 7
» Views: 268
Couldn't make an account ...
Forum: Gimp-Forum.net
Last Post: tomatoSauce23
09-26-2024, 03:14 PM
» Replies: 2
» Views: 205
Utube Works Best On Chrom...
Forum: Watercooler
Last Post: Tas_mania
09-25-2024, 11:30 PM
» Replies: 8
» Views: 371
LUT's - lookup tables : l...
Forum: Tutorials and tips
Last Post: denzjos
09-25-2024, 05:52 PM
» Replies: 0
» Views: 100

 
  Precision: 8, 16 or 32 bit?
Posted by: Krikor - 03-20-2020, 07:25 PM - Forum: General questions - Replies (2)

Hi, 

I was trying to use the RGB equivalent of a specific CMYK, namely 4,100,95,0 (RGB = 244,8 0,0 12,8; #F5000d).

However, although I selected this color (# F5000d) the result when checked was always #F5000c; RGB 245.0 0.0 12.0

Even at http://paletton.com/#uid=75B0u0kw0vijNCzp8xHytouDMjd when I entered the code #F5000d, the code #F5000c was automatically assumed.

I struggled with this limitation for some time until I finally looked for a solution.

This happened by chance, when doing experiments I changed the precision from 8 bit to 16-bit integer and voilà.

With that precision, I was able to select the color #F5000d and now the Color Picker Tool recognized that color. (Although the RGB slightly different 245.0 0.0 13.0)

I am not aware of this precision issue (Image - Precision - x bit)
Does choosing between 8 bit, 16 or 32 results in some type of higher memory or processor consumption?
Can I select the option 32 bit (or 16 bit) without any fear of any unknown consequences?
In general what reference should I take to find out what is the best precision that best suits my use?

Thanks in advance!

Print this item

  Where are 2.10 thumbnails?
Posted by: gimp_thumbnails - 03-20-2020, 10:56 AM - Forum: General questions - Replies (3)

Hello everybody,

I recently switched from 2.8 to 2.10 (Windows 8.1). Everything works just fine but :

  • In 2.8, all the thumbnails generated by GIMP were stored in C:/Users/MyName/.thumbnails/normal
I used to manually get rid of the many useless thumbnails from time to time.
  • But in 2.10.18, the thumbnails seem to be stored somewhere else, and I can't find where.
Can anybody help me ?

Thanks in advance.

Print this item

  Make grid look like Inkscape
Posted by: meetdilip - 03-20-2020, 07:26 AM - Forum: General questions - Replies (5)

I like Inkscape grid colours. They look very clean and crisp. When I tired GIMP the grid colours were as if it had a tone of sepia to it.

It will great if anyone can teach me how to make GIMP grid as in Inkscape. Thanks.

Print this item

  Custom Brush Edge Transparency Artefacts
Posted by: PigletPants - 03-20-2020, 12:11 AM - Forum: General questions - Replies (11)

Hello,

newbie Gimp user here trying to learn how to do new things recently. I am making trying to make a custom image pipe actually and I am getting a problem with the semi transparent edges around my images.

Basically when using the image pipe as my brush the semi transparent pixels around the edge of the images are output randomly as anything from the true transparency to black. I fiddled with all setting and could not fix it. I noticed that just simply copying one of the images to clipboard and using that as the brush is creating the same artefacts. It's almost a random drop shadow effect, but I do not want this.

I attached an image showing the issue. I roughly copies in the image pipe images on the right hand side and the left is using it as a brush. I tried transparent and opaque background but the result was the same. You can see the problem most clearly on the 2s with the varying amount of blackness around the edges where there should be nothing but the blue color.



Attached Files Thumbnail(s)
   
Print this item

  Loss of quality after color to alpha
Posted by: nemotyrannus - 03-18-2020, 07:11 PM - Forum: General questions - Replies (5)

Hi , New on the forum with a problem  (sorry for my english)

After switching from 2.8 to 2.10.14 i noticed a loss of quality of the line thickness when i use the color to alpha option.

I used to draw black lines (with paths) on white background and then use the color to alpha to remove white .And then i was able to colorize a picture on another layer placed below.

There was two layers , one with black lines on transparent background and a second one , below , with colors.
It was clean when i colorized the second layer. 
Now after color to alpha ,when i remove the white , although i colorize on another layer (normal) i see that the black lines , on the first top layer , tend to disappear and get very thin when i color and pass on them . It becomes very pixelized too .

Is there a way to counter this effect ?
Has someone faced the same issue ?


Ps
I don't know if there is a connection but i also noticed after switching from 2.8 to 2.10.14 that thickness is not the same .

As an exemple a 2 pixel size brush/path is now way thiner than it was before.



Attached Files Thumbnail(s)
   
Print this item

  Retain RGB values on 0 alpha pixels?
Posted by: ReeceGames - 03-16-2020, 12:06 AM - Forum: General questions - Replies (1)

I am making a Minecraft texture pack for bedrock edition, and the grass overlay system puts the overlay color on top of the RGB value of a given pixel, with the transparency of that pixels alpha channel. What this means is, to make a proper texture, you need to put the dirt part of the grass with an alpha of 0.
Unfortunately GIMP replaces the RGB values of a 0 alpha pixel with black.
Does anyone have a way to make a completely transparent pixel that still has a chosen RGB value?

Print this item

  PyGimp;Change color;Bucket fill selected
Posted by: FloppaDisk - 03-15-2020, 07:08 AM - Forum: Scripting questions - Replies (2)

Hi. Trying to change the color of the bucket fill function in python gimp, but due to my inexperience with python and the structure between gimp and python i have not been successful.
Information im looking for is:
  How to swap the pre-selected colors
  How to set new color
  How to fill and selected area
  How to select and area

All of which needs to take place in pyGimp

The bellow code is what i have so far, but the result is what i expect.
Expected result should be an grid (almost like a chess board) where pyGimp color individual squares in one of the two colors (foreground and background)

#Select and square
pdb.gimp_rect_select(img, gPosX+pX, gPosY+pY, wid, hig, CHANNEL_OP_REPLACE, False, 0.0)
#Fill the square
draw.fill(FILL_FOREGROUND)

Print this item

  Loss of quality though PDF files
Posted by: huckel - 03-14-2020, 10:41 PM - Forum: Older Gimp versions (2.8, 2.6....) - Replies (5)

Hi
I am running gimp 2.8 and I am importing PDF files. And on all PDF files that I have imported there is a loss of quality. However this dose not happen if I import a jpeg

Print this item

  How to remove unwanted line on Gimp 2.10.14
Posted by: Hoodiefiend - 03-13-2020, 05:07 PM - Forum: General questions - Replies (5)

Hi there,

I've been trying to figure out how to remove the outline of the adjusted "twitch logo" in my attachment picture.
If you look carefully, you will see a previous outline after i scaled the twitch logo down.

How do i remove that outline??
Thank you so much



Attached Files Image(s)
   
Print this item

  color wheel in gimp method?
Posted by: marigolden - 03-12-2020, 03:59 PM - Forum: General questions - Replies (14)

Any idea on how to make a color wheel in gimp?
Just a simple pie visual, except instead of for the purpose of percentages it's just to show the rainbow +3 other colors (white, brown, and black) so 9 colors in all

Print this item