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How automate crops of an image |
Posted by: stevem0 - 08-12-2020, 01:24 AM - Forum: General questions
- Replies (17)
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I have searched for an answer, but can not seem to find a solution, so I apologize for asking if already answered. (I have read thru slicing, guilotine etc.)
I need to take different segmented crops of an image. Say my image is 100 tall by 2000 wide (100x2000 pixels)
How do I automatically crop an image 100x750 starting x=0 and crop every 10 pixels and save each image to file?
I want to crop all images 100 tall and 750 wide. 100x750
I want to crop every 10 pixels
image 1; x=0
image 2; x=10
image 3; x=20
;
;
;
image 126; x=1250
When it is complete I will have 126 images saved in a folder.
Thank You
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Resolution keeps changing from saved resolution |
Posted by: RedBaron96 - 08-10-2020, 09:01 PM - Forum: General questions
- Replies (7)
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I typically use 150 dpi when creating my graphics, however, sometimes when I open them, the resolution changes to what translates to 150.22 or something like that, but it's showing in mm or something (can't pull up an example right now, and I can't remember exactly, as I'm not on my usual computer). How can I keep it set as always my default resolution and that it doesn't change to something else I never selected in the first place. But it changes the size of the graphic.
I have tried to look online, but all I can find are directions for just changing the resolution, which I know how to do. I just want a permanent setting for the preference. I did setup my preference for what I want my default starting document to be and it IS set for 150 dpi. However, it never opens to the size document I set it up to be.
I currently have version 2.10.20.
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12 segments on circle |
Posted by: GlasBeard - 08-10-2020, 11:02 AM - Forum: General questions
- Replies (2)
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Hi
How would you create a segmented circle?
Trying to create various watch faces. Is there a plug that automatically segments a circle into 12? End result is to have the numbers 1 to 12 uniformly placed around the edge of the circle (adjustable in the plugin?)
I know I can add a marker then duplicate/rotate it by % so many times, then add in the numbers manually, but is there a faster way to do this?
many thanks
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cut fills area with white not transparency |
Posted by: Sunny - 08-09-2020, 10:04 PM - Forum: General questions
- Replies (2)
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Hi,
I'm a beginner GIMP user - I use Linux Mint, GIMP 2.10.20
I opened a PNG image in Gimp. Then I used the rectangle selection tool to select an area I wanted to cut out. I cut it (Ctrl-X) and I tried clicking CUT in the menu. Instead of having the area that was cut be transparent, GIMP fills it with white.
How can I have it be transparent? like a hole
Thanks in advance
Sunny
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Batch Processing on Mac |
Posted by: Gimpah - 08-08-2020, 09:24 PM - Forum: Extending the GIMP
- Replies (2)
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I need some guidance on how to do batch processing (for now just resizing a set of photographs).
I am on Mac - Catalina 10.15.5 , GIMP version 2.10.
Based on my research a common plugin for batch precessing is called BIMP.
Their web site says:
"There's no need to install or compile BIMP on Mac, because the default native build of GIMP for Mac OSX 10.8 made by Simone from http://gimp.lisanet.de/Website/Download.html already includes BIMP!"
But that link there is broken.
Can someone pls help?
Thx
p.s.
I have found some instruction here:
https://github.com/alessandrofrancesconi...lugin-bimp
but to be honest can't follow them. I am hoping there is a n easier way!
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gimp changed canvas size for old figures |
Posted by: fkrizek - 08-08-2020, 05:36 AM - Forum: Older Gimp versions (2.8, 2.6....)
- Replies (4)
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Dear experts,
half a year ago i used gimp to create figures where canvas size was quite large (width ~5000 px, height ~13000 px). At that time figures were saved ok and i was able to export them to png. After a half year, when i try to reopen the original svg files, the gimp shows me only part of the original canvas ( width~700 px , height~1000 px). Is there a way how to restore the full canvas?
Many thanks for your help.
Best regards
Filip
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Batch replace colors |
Posted by: EagleEye559 - 08-07-2020, 02:00 PM - Forum: General questions
- Replies (7)
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Hey everyone,
I'm working on an image up-scaling project, with a massive amount of texture files; however, I've ran into an issue where the placeholder colors on the texture palette cause interference with the up-scaling software.
Placeholder colors, and the effect they have can be seen here:
https://gyazo.com/d087759e04450d144e14c757cb773d95
I am not as knowledgeable about GIMP's more advanced features, but I'd want to develop a process to batch process a folder of images, and replace the impacting colors with another to resolve the issue.
How would I go about this process? Explain like I am five / don't know anything about GIMP's functionality. Any help would be greatly appreciated!
EDIT: I've started using Color to Alpha, which seems to work for this purpose. Just applying this as a Batch to the whole set is now the challenge.
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