So I'm building a custom Cad hatch fill pattern for a software I use and like to make the individual travertine stones look like they have a little bit of depth. See attached. I was able to piece together one single stone with three or four different actions but, what a pain. Anyone know a quick way to do this?

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The PNG compression level is that setting in the PNG options that is set by default to 9 and that everyone keeps that way.

But what is its purpose anyway since the compression is lossless? Once decompressed the image is still the same whatever the setting? So why is it an option?

It happens that the PNG compression algorithm is quite CPU-intensive so this setting tells the algorithm how hard it should try to find things to compress. Unlike JPEG where you trade file size for image quality, in the PNG format you trade file size for CPU during export, and on big images it makes quite a difference. So lets see what happens with four different images (16Mpix each except the photo which is 14Mpx):

• A plain text (8 lines in a text layer with a large font), which is expected to compress very well (PNG is designed to be efficient on computer-generate images)
  
• A Simplex noise which is random but with a large proportion of pure black pixels (about 50%)
  
• A Plasma noise which is also truly random but is made slightly less random by applying a small median blur to it.
  
• A photo of a gorgeous French village.
  

   

G'day, not quite Gimp related but hopefully being a photographic minded forum, just posing the question,  is there a way to find and sort or delete or separate doubles in my photos ?

I wish to try using Canon's Print Studio Pro to lay out pictures for printing.
It is a plugin for Adobe Photoshop, Adobe Photoshop Elements, Adobe Photoshop Lightroom, and Canon Digital Photo Professional.
Has anyone figured out how to plug Adobe plug-ins into GIMP?

Are we able to save a processed image as a j peg?

Hello, I have finally jumped out of the Adobe atmosphere and parachuted into the Gimp landscape, I will try and learn the ways as best I can for an old fart but if someone could please enlighten me as to a way to dehaze an image, I am not sure.
I have only ever been an occasional photoshopper and will now be an occasional graphic image manipulator so I don't know many shortcuts and have always been self taught, my methods of any processing have probably always been the long wrong way but usually get somewhere in the vicinity of what I am after.
Thank you for any help you may offer.
Peter.

Hi Gimpsters
My problem is contrast between white foreground and white background.
The line between foreground is indistinct against the background for adding a Layer Mask. I need more contrast. Easily done Colors>Desaturate>Color to Grey. But after applying the Layer Mask how do I get my original colors back? Or, as usual, am I going about this all wrong?
I'm using 2.10 in Zorin.
Much thanks,
Bry

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I'm using Gimp 2.10.34, and I'm new to the software. Also, I'm using a French version so, I'm not sure the terms I will be using here will be an accurate translation.

So I'm trying to bend a distorted image with the 'Distortion: Curve' tool in the 'Filters' menu, it appears to be exactly the tool I need, some trials have produced encouraging results. But, the preview window shows such a small image that I can't see what I'm doing. It's pretty much guess work from there. 
Is there a way to zoom in on the preview image?

   

What is the most controllable and precise way to mark ("free select") an area on a layer and gradually reduce it from 100% opacity in the edges to a defined area where there should be 36% opacity?

Please see the accompanying image (which is certainly not the ultimate solution for this task)

   

Hi,

I am trying to do something I am sure is simple and probably has multiple solutions but I just don't seem to be able to find an answer that works.

I have a JPG image, which is 3000 pixels square. All I wish to do is save out a copy of the image but with a thin black border.

I would be extremely grateful if anyone could give me pointers on how to do this, please?

Kind wishes - Patrick