Hey Gimp Family,

Hope you are all doing well. I am editing a couple of pictures for my instagram portfolio. Whenever I export my pictures to my iphone, the colors and saturation looks different than what is on my desktop. Anyone know what I can do to fix this/make a new color profile?

Thanks

basically I want to do a grid fill similar to this, and I cant find any articles online. any help is appreciated, thanks!


I figured it out. Go to Filters -> Render -> Pattern -> Checkerboard.

I'm using the latest GIMP and the latest GMIC. I'm doing a face swap using a layer mask on one pic. I'm using layer/blend (seamless), input - all visible. It's cutting off a good part of the pic and I can't recover that part by using Image/fit canvas to layer. It's simply chopped off. What can I do to prevent this?

Other time I've used this same preset without this happening. I went ahead and reinstalled GMIC, because at one time earlier today GIMP said the GMIC plugin crashed. This is an old computer 4 gigs of RAM.

Is there any easy method to create a rubber stamp seal other than drawing everything from scratch ? It would be nice if we can customise the text and colour. Thanks.

I am a newbie Gimp 2.10 and I cant see multiple layers together even though i have made all layers visible with the eye icon ? A layer becomes visible over another one when i increase transparency only but this is not what i want... like to see all layers with full opacity..  help !!!

Hello,

I need to "calibrate" digitized images of test prints with the white and black patches of a color card, like the Spydercheckr24 that I have. 
My test prints are alternative photography 256 step wedges, i.e. little squares of degrading tones from the darkest to paper white that I print by hand using an old photographic process.

To better explain my "calibration" needs I can do the parallel with Photoshop. There I open my image containing the test print and the color card at its side (see attached image). I know the Lab (or RGB) values of the patches in my card. Using the Curves command in Photoshop I can customize the pipette values for the white, black and gray points. So I write in the Lab value for the black point and then click on the black patch of the color card in my image. Therefore the black point of the image adapts to the newly customized level. And so I do for the white and gray points inside the Curves command. At the end my image is "calibrated" as per the correct values of luminosity, the darkest and the white colors are as they are supposed to be.

In GIMP I have found that the Levels command has the white and black pipette but unfortunately they seem not to be customizable so they make the white patch to become your white (255,255,255 RGB) and your black patch to become (0,0,0 RGB) and my final test print is out of its real range of tones since the color card has not those values.

My question: is there a way I can perform a color value "calibration" using GIMP as explained above when using Photoshop? 

Thank you in advance for your help!
Paolo

P.S. attached a sample of my scan. I use the gray side of the color card but if of any help (automatic calibration sw) I can use the colored side.

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HI,
I have been searching for a while but cant find the exact answer I need.

I am designing the layout to a new dashboard in my bus. I want to use Gimp to draw the dashboard, then the guages on different layers, and place them in different positions to get the best layout. I know how to use all the tools. 

What I don't know is how to set the scale, I guess, of the canvas so that I get an accurate representation of the real world size. 

the dash is 215mm by 555mm when I use the rectangle tool and set the measurements to that, using the default drawing size, it goes off screen. 

How do I set up the scale or resolution etc, so that I can draw the correct size and it all appears inside the canvas area? 

I am not printing the drawing, I just need a visual representation so I can transfer positions and spacing onto the actual dashboard prior to cutting out. 

Cheers.

I'm doing a face swap and like the idea of the non-destructive method using layer masks. I have a layer mask on the face and just use the paint tool to erase the part of the face pic I don't want.
When I try to use Color Balance or Brightness-Contrast it only seems to work around the edges of the face and not the whole face. How can I get it to work on the whole face?

You are likely reading this because Gimp is doing weird things with your image colors. This is usually caused by your image being color-indexed.
This can be checked by looking at the Gimp window title bar, that indicates the current image mode:

   

   

• PNG: A variant of the PNG format is color-indexed, even if this not a frequent usage for this format
  
• GIF: GIF images are always color-indexed
  

• All the colors of external images that you try to add to your color-indexed image will be adjusted the "closest color" in the color map, this includes:
  • Images that you load by File ➤ Open as layers
    
  • Anything that you paste (whatever the source: another Gimp image, or another application)
    
  • Layers that you drag from other open Gimp images
    
• Most color tools (Levels, Curves, Brightness/Contrast, Saturation...) will behave strangely, because color values will "jump" between colors in the color map.
  
• Many filters will be disabled.
  
• Whatever the Foreground/Background colors are set to, the paint tools will use the nearest color in the color map.
  

I have a simple project with just 2 layers. I want to merge them into 1 layer. But the layer boundaries aren't the same. IN the screen grab of GIMP you see 2 yellow layers. The top layer has a right border that doesn't extend to the right as far as the layer beneath it, which you can see it extending further to the right. When I export this image of 2 layers, the layer right and bottom boundaries show as you can see in the pic. I want to not see those 2 lines, when I export the pic. Is there any way to do this in GIMP?

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