If you ever got confused about the JPEG sampling factors notations as shows in Gimp's JPEG export dialog, but also ImageMagick's identify, mediainfo, here is a page that explains it all:

https://zpl.fi/chroma-subsampling-and-jp...g-factors/

Hey, I have the following problem (Gimp 2.10.22)

I create a T-Shirt mockup for my online store. In a guide I saw that you can use the "darken only" mode for your logo in order to make it look more realistic when the logo is placed on a part of the t-shirt that has some folds. However, when I use "darken only" my logo turns invisible. I have the impression it somehow makes the logo itself transparent so I guess I have a wrong setting somehow... Anyone has a clue how I could fix that? Thanks in advance

I have 100 images with very similar palette (90%). Some images have some colore more, other less
I would like to index all images so that they share the same color palette.
The final palette will have 32 colors. I have tested it on a group of images and it seems to respect the color variations. 
Any advice?

Most or maybe even all other software I use on Windows has a familar window for opening or saving files whilst GIMP seems to use something custom which lacks the features the standard window has like the pinned quick access shortcuts or the view options which let me preview images of each file simultaneously. It sure would be nice if GIMP would drop its custom effort and use whatever it that I presume Microsoft has provided for programs to use to access files and folders. Does anyone know why GIMP uses this custom-coded window? It makes selecting the right images to open slow and error-prone.

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I have a photo (of a big sunflower head) and a mathematical figure (many big red dots). The photo is somewhat distorted and needs transforming by trial and error, to have the dots fit on top of it. Making one layer transparant is no solution because fuzzy views won't do. Nothing I tried so far with GIMP allows to manually adapt the photo (Perspective, say) while the layer on top of it remains unchanged as if on a glass plate.

So I want the red squiggle areas to be whitened/dimmed to save on toner and I want the text and lines/roads highlighted/black/darkened. It's to be printed on a laser Black and White/Grayscale printer.

I tried converting to grayscale and printing but the gray block areas don't print all that great and the text and lines look subdued because 'Yellow Road' looks slightly grey and merges with the block areas.

https://i.imgur.com/VPpa8Vx.png (in grayscale)

What should I do? I tried https://np.reddit.com/r/GIMP/comments/e8...n_old_map/ but it didn't do what I wanted - it darkens the whole image/fiddling with the Levels/Curves

I just downloaded a sewing machine manual pdf and it is very faint.

 Is there some smart little app which will enable gimp to run through all 35 pages of it and automatically raise the contrast or darken up the lines, somehow make it more legible?

I'll attach a sample page

Attached Files

  elna3003sewingmachine-Page14.pdf (Size: 291.53 KB / Downloads: 682)

Hi,

Is there a plug-in similar to ofn-export-layers.py but that unlike this would export the paths instead of the layers?

I want to export the customs fonts paths to use with fontForge.
The only way I know is to export each path one by one.

Thx.

i want to resize a image, how can i do this?

Hi, I was wondering if it is possible to use Gimp Online to edit online, on the fly, a photo in Google Photos, so you don't need to download it in order to work with it.

If I use the right-click context menu in Chrome Gimp Onlime, I can indeed edit a copy of the photo, but I can't find the way to actually update the copy stored in Google Photos. 

Thanks in advance!