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Lightbulb Exported png files get about 100 times larger than expected
Posted by: Grobe - 02-26-2024, 11:16 PM - Forum: General questions - Replies (1)

Hi.

Ok, so first - trying to upload the xcf file failed because of file size, so the only file possible to upload correctly is this png export settings.

Here is the file description.

  • Layer 1 - importet PNG file, file size about 55kB
  • Layer 2 - same dimension and roughly same size, but not same image.
  • Layer 3 - New transparent layer.
  • The layer 3 mainly consists of small spots of non-transparent pixels created with clone tool, so it's just to add/remove some features of a map.
The problem is that after exporting this image file to png format, the resulting file size get over 6MB - that is about 100 times larger, I expected the output png file to be maybe around 70kB at maximum.


Edit : Solved while edit this post

Ok, just figured the solution. The image precision was set to 32 bit floating point, and by converting to 8 bit integer, the exported PNG file became a nice 77kB file.

I post this anyway in case somebody happens to stumble upon same issue.



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  Tips for cleaning up a receipt image
Posted by: mattyp77 - 02-25-2024, 08:19 PM - Forum: General questions - Replies (3)

So I have a receipt that I accidentally dropped on the floor of my car. Didnt notice it and it got stepped on, dirty, wrinkled, and distorted but it turns out I actually really need it to make a return. And it cant be looked up by credit card, it was a cash receipt. So I scanned it, cropped it, converted it to black and white, and did a little bit of manual clean up. Already that did a massive amount of clean up but I would like to go a step further. A lot of the text is cracked and partly unreadable and the bar code has a crease through it. At the very least I would like the lettering especially for the transaction number to be crisp and readable. If possible I would also like to fix up the bar code. I wonder if I can actually get it to scan. So any tips for filling in the cracks in the text and cleaning up the barcode would be greatly appreciated. Thanks

**Note: For the image I uploaded I did block out specific details to keep it anonymous. Besides its only so you can see what Im working with. Not for you to do it for me. Thanks!



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  Select multiple layers
Posted by: gimpygirl - 02-24-2024, 06:52 PM - Forum: General questions - Replies (4)

Hi

I want to select multiple layers (at the right bottom window) and then delete them.
But nothing works: holding CTRL, SHIFT, ...
I can only select ONE Sad

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  Intro and a few questions on attached photo
Posted by: Danbor - 02-24-2024, 02:19 AM - Forum: General questions - Replies (10)

Hello all. I'm a beginner to Gimp and photo editing in general. I've attached a photo that I am trying to restore, and though there are many issues that I need to work on, there are two that I think need to be addressed first. The first, is how to correct the "light flare" in the upper and lower left corners. The second issue, is there any way to bring out more detail in the shadow under the trailer?

   I am using Gimp 2.10.30 with G'MIC-QT version 3.3.4. My operating system is Linux Mint 21.3.

   Currently I'm near completion of  the Udemy course titled "GIMP 2.10 Masterclass: From beginner to pro photo editing". Actually I've finished the training modules and am working my way through the tutorials at the end to gain experience with the UI. Seems to be a good course, but it's emphasis is on design and creation. Sadly, I haven't a creative bone in my body and no interest is creating digital designs. 
   What I do have is several hundred photos from family photo albums taken from the early 1930's to the turn of the century that I want to restore.
   Anyway, enough of my rambling, Any suggestions on coping with the bright spots on the left of the photo and the details in the trailer shadow?
   Thanks in advance!

   

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  Batch export png to svg
Posted by: gimpygirl - 02-23-2024, 07:25 PM - Forum: General questions - Replies (8)

Is it possible to batch export png files (with transparent background) to pixel perfect svg files (a whole folder)? How to do this in gimp?


Example files: the exported png files from this

https://www.gimp-forum.net/Thread-cut-sq...from-iamge

PS: I don't know if gimp supports SVG. If not, what open source/free program would you recommend to do this on windows?

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  Bold not working anymore.
Posted by: kar0606 - 02-23-2024, 02:11 PM - Forum: General questions - Replies (4)

I've been working on a comic and for the text I would sometimes bold key words in the dialogue but now the bold feature just isn't working. I've been using the same font since I started and it used to bold but now it doesn't so I think it was an update that messed something up for it. I'm on gimp 2.10.36 and I tried going back to 2.10.0 but that still didn't fix it so I think I'd need to try 2.9 or something even older so if anyone knows where I can download that I'd appreciate that. Also if there's any way for me to fix it in this specific version I'd like to know that too. I read something about faux-bold which doesn't require the font to have a bold version but I don't know if that's a feature but if it is I'd like to know where to enable it. Thanks.

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  Apply alpha values from one image to another?
Posted by: ottenm - 02-22-2024, 06:28 PM - Forum: General questions - Replies (3)

I have two identically-sized .png's that both contain (only) a large, solid circle.

In one image the circle has a few pixels around the perimeter that fade to transparent (barely noticeable at first, and gradually fading more until the last pixels at the very edge of the circle are almost completely transparent). 

The other image contains only completely solid pixels (within the circle), and completely empty pixels (outside the perimeter).

Is there a way to apply (just) the alpha values from the first image, to the second one? (so the second one also fades gradually to transparent around the perimeter)

Thanks for any help!

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  Cut squares from iamge
Posted by: gimpygirl - 02-21-2024, 07:15 PM - Forum: General questions - Replies (16)

Hi

Is there a way in GIMP or a plugin, script, ... to extract all the black squares from this image automatically to separate PNG files?
So I need a folder that has all squares (no matter if the square is empty or not) saved as 1.png, 2.png, 3.png, ... from this image
I need step by step instructions because I'm a beginner

My GIMP file is here:

https://www.mediafire.com/view/zh9zdytld...t.xcf/file

Image preview:

https://ibb.co/SvBJGfb

Why can't we attach a file here on the forum (file is under 100kb in zip file)?
Error: Request Entity Too Large

The requested resource does not allow request data with POST requests, or the amount of data provided in the request exceeds the capacity limit.

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  Merge layers and crop
Posted by: zeuspaul - 02-20-2024, 11:46 PM - Forum: General questions - No Replies

I don't know what setting I changed.  Now when I merge visible layers some of which extend beyond the canvas size Gimp crops the image to the canvas size.  I don't want to crop.  

Thoughts? Suggestions?

Windows 10, Gimp 2.10.34



I found the solution!  Somehow in the merge layer box clip to image got checked.  I changed it back to expand as necessary and all is well.

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  When C is decomposed it is diffrent from the color picker
Posted by: jarj - 02-20-2024, 12:39 PM - Forum: General questions - Replies (4)

Version: GIMP 2.10.36

   

I have a simple image      2x2 RGB(54,58,83) and the color picker converts this to CIE LCH
L = 24.9% C =  16.2% H =  282.3°


if I do Colors → Components → Decompose [uncheck 'Decompose to layers' ] and look at the L C H images the RGB% are: 
L = 24.7% C = 8.2% H = 78.4% (78.4 * 3.6 = 282.24°)



L and H are pretty close, however C is 50% out - What am I doing wrong or misunderstanding or is this a bug?


and help or workaround much appreciated


   
   
   

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