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alpha selection not outli...
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  Measuring A Path
Posted by: seconddegreeperm - 06-10-2021, 06:39 AM - Forum: General questions - Replies (3)


I want to be able to measure the length of a path, but I can't see any way to do this. Ideally I want to be able to split the path up into equal line segments, in order to do this I first need to know how long the path is. Does anyone know how I can easily measure the length of a highly curved path? Bonus points if you also know how to split that path up into equally sized segments! 

I have attached an image of the path so you can see what I am am trying to measure. If you feel I have made anything unclear I am happy to answer any questions to clarify Smile

Thanks in advance

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  correctly opening Tiff with layers
Posted by: scatolabox - 06-09-2021, 06:11 PM - Forum: General questions - Replies (5)

Hi you all,

Many colleague of mine work with TIFF files, in which (opening them with some apps like Photoshop) you can find several layers (brightness, shades, paints etc.).
How can I open them correctly and save them again with similar information?

I didn't find any working plugin. Even this one https://wiki.panotools.org/Multi-Layer_T...h_the_Gimp does not work with my version (2.10).
What can I do?

Thank you very much in advance


-------------- I searched this question through the forum without result - then sorry if I didn't find an already answered topic. Or if the section is wrong!

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  And the winner is....
Posted by: Ofnuts - 06-09-2021, 04:23 PM - Forum: Gimp-Forum.net - Replies (2)

... Rich2005, who started the first thread that reached 100K views.


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Posted by: DaytonaSteve - 06-09-2021, 03:27 PM - Forum: General questions - Replies (6)

OK I must be the dumbest person on the planet but I've been using photoshop for years and wanted to get off the Adobe train.  I wanted to try Gimp and I can't even change the color of the background.  I created a new "canvas" it was white, I wanted to change the color.  I selected all and went to the color picker, changed color, nothing...I added some text in the canvas.  I believe I have it selected.  Chose a different color, tired both foreground and background.  Nothing.  Wouldn't change.  Please help...

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  Is the internet down?
Posted by: Ofnuts - 06-08-2021, 11:12 AM - Forum: Watercooler - Replies (6)

Is it me or are there general internet problems today? I have had problems accessing Reddit, StackOverflow, Gimp.org, and some others. Doesn't look like my own internet (mostly errors from the servers themselves, and doesn't work either on my work PC which  only sees the internet through a heavily filtered VPN...).

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  Script to auto-rotate images to align with text flow?
Posted by: bkpsusmitaa - 06-08-2021, 11:03 AM - Forum: Scripting questions - Replies (6)

Tried search string on the forum:

Quote:Script auto rotate image text flow document

Had been thinking for many years: if an image of a text document could automatically be oriented along the textflow.

I self-learnt some programming out of curiosity. Very elementary programs. I don't have the patience, persistence, or hyper-focus of a programmer. 

Had been thinking in terms of drawing a set of two parallel lines apart from the middle towards the edges, and the maximum number of longest uninterrupted straight line segments that could be drawn between those two parallel lines (from one edge of an image to the opposite edge is quite superfluous) could help auto-orient a document along the direction of the text flow?

Perhaps this is the reason why OCR programs such as Abbyy Finereader could automatically rotate scanned documents?

But have left using Doze and associate programs. Have gscan2pdf and gimagereader. They are nothing compared to Abbyy of 10 years back. But who knows, in the name of PROPRIETARY, what malware/spyware/trojan might have they been inserting, in addition to  regular paid upgradation of Doze and anti-virus, anti-malware and what not software? So I am better off with bits and pieces solution and better safety and security with Free and OSS system.

Is there a script to achieve this very purpose? Auto-rotate such a file to horizontally align the direction of the flow of text with the help of a scirpt? Or any other tool?

Any advice please?

In the end another request: if the post isn't found appropriate for this forum, may I please be sent a copy before deleting it.

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Sad brushes dialogue missing buttons
Posted by: Bearpecs - 06-08-2021, 03:47 AM - Forum: General questions - Replies (2)

In the attachment is the Brushes Dialogue box I see when I open GIMP.  The documentation says Iʻm supposed to have buttons at the bottom of it for

  • Smaller previews
  • Larger previews
  • View as list
  • View as Grid
  • Open the brush selection dialog
As you can see, I have none of those.
What am I doing wrong?

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  Failing on loading script Mac OS X: gimp_check_updates_callback failed
Posted by: frankytanky - 06-07-2021, 11:46 PM - Forum: Scripting questions - Replies (1)

Hi, I had a script that was working for me on Mac OS X

franky@frank ~ % /Applications/GIMP-2.10.app/Contents/MacOS/gimp -i -b "(let* ( ( image (car (file-png-load 1 "\\""/Users/franky/Desktop/image.png"\\"" "\\""/Users/franky/Desktop/image.png"\\"") ) ) (drawable (car (gimp-image-active-drawable image) ) ) ) (plug-in-colortoalpha 1 image drawable '(0 0 0) ) (gimp-file-save RUN-NONINTERACTIVE image drawable "\\""/Users/franky/Desktop/image2.png"\\"" "\\""/Users/franky/Desktop/image2.png"\\"") ) " -b "(gimp-quit 0)"
To run color to alpha, I was working on some shell scripts with a python virtual environment in it this morning and something I've done seems to have confused Gimp - maybe in regards to Python version?

I now get this error when I try to run it: 

GIMP is started as MacOS application
gimp_check_updates_callback: loading of https://www.gimp.org/gimp_versions.json failed: Operation not supported
batch command experienced an execution error:
Error: eval: unbound variable: \/Users/coopermor/Desktop/Armato-Side-Table_render_shadow_difference.png\

Any ideas? Thanks so much! Happy to provide any additional details that are helpful.

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Posted by: Ofnuts - 06-07-2021, 03:37 PM - Forum: Extending the GIMP - Replies (13)

Somewhat automated a recent tutorial.

Starting with this:


The script produces this:


And optionally this:


At the usual place.

Slàinte Mhath!

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  Possible to convert pic pdf to image series?
Posted by: bkpsusmitaa - 06-07-2021, 11:59 AM - Forum: General questions - Replies (8)

Hello and good morning.

I post on Debian user group and forums with the same username, and on Knoppix forums as rajibando.

Have been using gimp, but only for minor uses, for the last 12 years. I don't have any high end technical knowledge on GIMP. Just common sense usage ideas.

I have a pdf file that contains only images.

There is a long process: Right Click on the PDF file ⟶ Open with GIMP ⟶ Import from pdf ⟶ Open as Images ⟶ set dpi and other options ⟶ each image opened.
Then save each image as a separate file.

Is there a shortcut? That is, an automated/batch process, for the above step without actually opening any file on GIMP window?

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