Gradient issue on large images

is there a know issue because there is one on images over 10k? Also its an image forum you didnt think people needed more than 500kb? ffs

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Hi!
I would like to create a composition guide for Gimp, but I couldn't find anywhere stating how.

For clarifications, I would like to create the composition guides used with the crop tool, i.e. my custom version of the Rule of thirds, Golden sections etc. but with my own proportions.  I've attached two images highlighting what I am mean, I would like to create a custom of those.

I am aware of that one can use vertical and horizontal guides by going to the Image Menu > Guides > New Guides, but that is not the kind I want to use. Neither would I like to use configurable Grid by View > Show Grid. 

Thank you in advance

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It has timed-out the last 2 days. No error message and looks like a DDS issue.

I am a beginner on GIMP (using 3.0.8). I am trying to print an image on an A4 sheet in a specific location.

It's actually a greetings card (made of an A4 pages folded in half) and the image needs to fill the bottom half of the A4 page, with a 5mm border all round.

I can set the image aspect ratio OK, but when I come to print it, I can see no way of placing it to a specific location on the page. In Photoshop, in the print dialog, you can specifiy the offset of the image to position it anywhere you like. But, I just can't see how to do that in GIMP.

Is there a way, what am I missing? The only thing I can see to do is pad the image with a lot of white space so it completely fills an A4 sheet and print that, but it does seem clunky.

I need to reduce the inseam of somebody's shorts.
The technique that I have thought about that can do this is to rotate her legs. So, I rotate one leg and then I rotate another leg.
However, this process leaves an absolutely unjustifiable white line that cannot be fixed.

Here are the details:

The original picture is this:
https://i.imgur.com/XVLBbZ9.jpeg

I load it into GIMP by Ctrl+Shift+V.
Then I use the free-form select to select the area that I want to rotate.
Here is the selection:
https://i.imgur.com/U9t5siP.jpeg

Then:
Edit -> cut
Edit -> Paste as -> Paste as single layer in place
In the Layers window (bottom-right of the screen), I move the new layer below the main layer.
At this point, it looks like this:
https://i.imgur.com/cqcRJdA.jpeg

Then, In the Layers window (bottom-right of the screen), I select the main layer, and add alpha channel to it.
Then I select the fuzzy select tool. Then I click inside that white area.
Then I press the Delete button.

As a result of that, the leg becomes visible THROUGH the hole in the main layer.
It looks like this:
https://i.imgur.com/YketQ4c.jpeg

Then I rotate the Leg layer.
Here is the result:
https://i.imgur.com/DxZfbhu.jpeg

Then I merge all the layers.
Then I flatten the image.
Here is the final result:
https://i.imgur.com/SDNYibB.jpeg

As you can see, the two triangular white shapes are justifiable side effects of the rotation, and I can easily fix them.
However the white line is ABSOLUTELY NOT a justifiable side effect of the rotation, because the rotation rotates the back layer (the leg) towards and partially to the back of the main layer. So it shouldn't create an empty space (an empty line) between the two layers.

Also, please note that fixing that white line is not possible (or maybe not easy) because it is right next to the sewing line of the zipper. If I use the heal tool to remove the white line, the sewing line will also be removed, which is absolutely not acceptable.

1. Why does that white line happen?

   I really don't understand why this happens.
   Can you please shed some light on this issue?
   Please note that doing this same thing in other apps (for example Microsoft Paint) does NOT create that white line.

2. How can I avoid that white line?

3. If it is impossible to avoid it, how can I fix it?

Please help.
Thanks a lot for your help.
Nick P.

Using Gimp 3.2, I'm able to create a new .xcf file in a Dropbox folder. However, if I make a change to the file and try to save it, I get this error message:

Quote:Saving 'D:\Dropbox\...\TestTest.xcf' failed:
Error writing 'D:\Dropbox\...\TestTest.xcf': Error renaming temporary file: Permission denied

good day dearGIMP-Fans, 


first of all - many thanks for your great forum. i am glad to be here - to be a part of your great forum.

today i have a workflow question: i am interested in the extracting a "Dotted Network" skeleton from a glowing raster image for vector editing

the goal: I have a complex raster image (a network of dots/lines on a dark background). I want to "isolate a layer" to get a rough, clean vector skeleton (Base Layer). Later, I will use this skeleton as a foundation to build upon (a Model Layer).

 my base question 1:the right tool Selection
 
Which is the best primary tool for this specific "extraction" step?

a) GIMP: (For curves/threshold) - i guess that this is the tool to use
b) Inkscape: (For bitmap tracing)
c) Krita: hmmm  (For color-to-alpha)

My assumption is to use GIMP to kill the background and Inkscape to trace the dots to vectors. Is there a way to do this purely in one software?

the question here: Isolation Technique
 How do I isolate only the brightest: lines/dots  (..without dragging the "bokeh" (blurry glow) along with them?).....
 - Is it better to work with Layers (e.g., subtracting a blurred layer)?
 - Or is Color Decompose (HSV - Value channel) the standard approach?
 - Are there specific filters (like "Edge Detect" or "Threshold") that preserve the dot structure without making them blobs?

the Question 3: The Vectorization:
 
When using Inkscape's Trace Bitmap, how do I prevent the scattered dots from merging together? The original image has distinct nodes, but the glow connects them. How do I tell the software to separate the "nodes" from the "edges"?

I want to keep this technology-neutral to learn all possible approaches, but I am guess that it best would be gained if i go with GIMP 
to get the workflows done.

look forward to hear from you
 Thanks!

saint_m


-additional: some little & tiny ASCII Graphics that illustrates the "layer--stacking"  .  the"Layer Stacking" concept.

the Figure 1: The Base Extraction
my goal here:  i wanna remove the background glow, and keep the structure.

Quote:

Code:

    [Original Image: Glowing Dots + Dark BG]
                  |
                  v (Threshold & Decompose)
    +---------------------------------------+
    |  EXTRACTED BASE LAYER                 |
    |   .-----o      .-----o                |
    |   |      \    /         |             |
    |   o       o--o       o                |
    |  / \     /    \       / \             |
    | o   o---o      o---o                  |
    |                                 (White lines, Transparent BG) |
    +---------------------------------------+

Looks like nobody is using Gimp anymore, it is all AI, however Gimp 3 can come in useful at times.

This is using the Gimp 3 plugin Batcher   https://kamilburda.github.io/batcher/

(1) Removing a plain color background from an animation.  It might be something downloaded from one of those animation websites. If it is possible using Color -> Color-to-Alpha then in Batcher these Gimp operations gimp-layer-add-alpha and color-to-alpha

   






(2) Distributing the layers across the canvas using the Gimp 3 Align tool and adding a background with Batcher.

   






Which gives this:

   

Thinking it might have some features the earlier version doesn't have, yesterday I got the bright idea to upgrade my version of GIMP from 2.8-something to 2.10.38 (the latest I can get that's compatible with my Windows 7 ThinkPad).

I've spent the last few hours trying to make it look and perform the way 2.8 did. (Insert usual excuse about my being a creature of habit.) I've figured out/stumbled onto most of what I need, but one thing eludes me, or maybe two:

Unlike with 2.8, the Tool Options, Toolbox, Navigation pane, and Layers box each seem to be stuck in one place, at one size. They're way taller than they need to be, and take up way too much space. I really didn't mind moving them out of the way when I needed to work on a more zoomed-in view of my image, but I don't seem to have that option here.

Is there a way to resize them and move them around?

Also, when using the Rotation tool, its dialogue box was sitting right on top of the image I was rotating, so I couldn't really see what I was doing. It wouldn't move, either.

Please, I hope there is a way to do this. If not, I may need to revert and forego any improvements 2.10 has to offer.

Thanks!

Hello, the menu to create an image from a scanner is no longer available.
Is this temporary or an oversight?

Thank you.

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