Hi,

I am designing a book cover. I have one layer for the image for the front cover, another for the back cover. I can easily adjust the brightness/contrast of the front cover image, but I cannot for the back cover image. Here's what I am doing:
1. Open dockable dialogue: Layers.
2. Select the layer I want to work on.
3. Select Colours -> Brightness-Contrast.
4. Adjust as desired.
5. Click OK.
With the front cover, the brightness/contrast change is immediate. With the back cover, nothing happens. I am using GIMP 2.8.10 on Lubuntu and Linux Mint (2 computers).

Thank you for your help.

Hello good folks, 

After spending several hours experimenting with various guides/how to's I have reached the conclusion that my approach/search for tutorials may not be correct. GIMP has lots of cool ways to do things but may not be applicable for simpler tasks, added to this many of the tutorials online are out of date with key menu selections no longer available,

My quest is to find something similar along the lines of MS Word picture formatting, this takes an image which you can then apply borders, angles and reflections amongst others - this worked well when creating user manuals with stock photos, just removes that glaring amateur 'photo look' (see below)

Applying the refection to photos through GIMP takes a little too long, instead have opted for the 'shadow' effect as in the tutorial below.

Couple of issues, first when selecting the 'cut' menu selection to apply rounded corners the whole image disappears, and secondly when exporting to PNG using another tutorial the end file ends up too big for web use (rejected by ebay for example).

The issue with the whole image being removed is the same on at least two tutorials but earlier GIMP versions.

Thinking of a workaround, I tried importing into Word then screen shot, that worked okay-ish but lost some of original clarity/resolution.

https://www.youtube.com/watch?v=XRollf6OQWs

Ideal image 

 


Thanks in advance.

For some reason, even tho' the fore and back grid colors are set to white, GIMP 2.8 insists on printing the empty areas of the canvas in black.
What's on the screen:
https://drive.google.com/open?id=1nAZ5g6...0oDoOXBf_c

What prints out:
https://drive.google.com/open?id=10RJGNX...OCuCwu8wyH

That's an incredible waste of ink and it saturates paper.

What's going on and how does one fix this "feature".

I recently upgraded to gimp 2.10.8. I am just starting to get back to removing the background from images for work.

When I use the fuzzy select tool or the color select tool and I try to delete the selection the same way that I always have, it ends up deleting the entire photo and not just the selection.

I haven't changed anything that I know of. Any help would greatly be appreciated!
Please don't hesitate to ask me questions!

THANK YOU SO MUCH IN ADVANCE!!

Ive been trying to open new canvas at 8.5x11. Done this a million times. File-new- but ( just today) once i change height, then click width to change it, the height reverts to what it was?? Never happened before. Now wont let me change canvas size at all. What happened, how do i fix this please help!

This YouTube video
https://www.youtube.com/watch?v=WsDQSRmNFIA (16 secs)
has gone viral locally.

So people are having a lot of fun with it. Here are just 3 of many that are doing the rounds.

T Shirt
https://imgur.com/bo0SVzu

Mountain Bike For Sale - Contact Marelize
https://imgur.com/VQPykHh

Safety Sign
https://imgur.com/Tz9sEyC

Am I right assuming that when I open a photo as layer that the original photo is safe from any changes made on the layer?

I am trying to add a "border" to my images, to bring then to a common, standard size.
(the "border" being a solid COLOR)
The images are RGBA in PNG; 
With some image pixels and thin surround of transparent pixels
(the result of cleaning away various scanner artifacts)

The good bits of these base images have irregular perimeter, so:

Plan-A: resize image to new size; insert-layer below, select-all, edit-fill-selection with FG/COLOR in the new/background layer
  (all that works)
  And then merge-down the top/original layer to the background.
  And the resulting layer is all TRANSPARENT!?
  
  Note: If I step through the undo stack, and get to the point where the merge happens,
     and do it "manually" with the menu: Layer -> Merge Down it works as expected.
  Note: I have tried several variants, with gimp-layer-new and gimp-copy-layer,
     and have logged/verified the gimp-layer-get-mode of all concerned.
  Note: I also tried with merge-visible-layers
     read all the docs on layers and merge, saw the sample code

In all cases, the "merge" removes the layers, and produces a blank/transparent layer.

Plan-B: keep it simple, just the single, original layer, resize and fill:
  select the contents of the [original/only] layer, fuzzy-select the picture, flood, sharpen (all good)
  Then resize the image, resize-layer-to-image; selection-invert; edit-fill-selection with FG/COLOR
      (gimp-context-set-foreground fill-color)
      (gimp-drawable-edit-fill drawa FILL-FOREGROUND)

  Because *that* should just-work nothing interesting or new, right?
   Note: I have a shared routine for this, to save context/undo, it works as expected in other cases;
      but using the procedure, or the simple/direct code as show, the effect is the same
      but for this use-case it does the unimaginable:

To my shock and dismay, edit-fill-selection 
   (with Selection being the NEW/Transparent bits, outside the original pixels)
   (and with FG = COLOR)
   Sets the non-selected pixels to TRANSPARENT!
    (unless I step in with the Undo; and "manually" Fill-Selection with FG; *then* it works as expected)

So now I appeal to greater wisdom.
Is this a known failure mode?
Some limit to scripting?

How can this be scripted?  
  (I'll even do python... )

I am a new GIMP user and have a heal tool question as well. Saw a you tube video on using Wavelet Decompose and scales to remove "speckling" (white spots) from an old black and white photo. The process required me to use "select by color" to identify the white speckles (which I did). Then run Filters / Enhance / Heal Selection to remove the identified speckles from each scale. My problem is I don't have Heal Selection under Filters / Enhance. Any help or direction is appreciated!

Hello!

So I need some help..... I am an artist and I am trying to start selling prints. I generally paint acrylic on canvas. When I plug my images of my artwork into GIMP for editing, the texture of the canvas shows a lot (of course). I am trying to find a way to smooth this out that doesn't involve blurring. The painting doesn't just involve solid colours so its hard to just blur it...

Does anyone have any insight that could help me in this current predicament?


Thank you!