This GIMP (GNU) tutorial demonstrates how to blend and image of a moon with an image of a sky. To work along, you are welcome to download the Start Images I am working with Here. Unzip the file and open the Start Images onto GIMP’s workspace.
You can quickly Undo a step at any time by pressing Ctrl then Z. Alternatively, click a previous Undo History snapshot - Windows then Dockable Dialogues then click Undo History. In addition, to Zoom in (or Zoom out) of your image; from the top menu, choose View then select a Zoom Tool from the subsequent drop-down list.
Understand Blend Modes
Launch GIMP & Organise Its Workspace & Palettes
Ensure the Layers and the Undo History Palettes are visible, and then drag them into position over your workspace - (Windows then Dockable Dialogues - then click Layers and Undo History).
To open the two Start Images onto GIMP’s workspace: from Gimp’s top menu, choose File then Open - Ctrl then O. Now, from the subsequent Open Image dialogue box, navigate to the folder where your Start Images reside, then Ctrl-click to highlight both files - and then click the Open tab.
Now, from the Moon Image’s Top Menu, choose Edit and then choose Copy.
Then from the Lightning Sky Image’s Top Menu, choose Edit and then choose Paste as and then choose New Layer - as illustrated below.
Your Layers Palette will now display the Moon and Sky Layers - as demonstrated below.
Now that it’s been pasted onto the large sky image, it’s safe to Close the original Moon Image. (Top menu, then File then Close).
In addition, (if necessary), Maximise the Two Layered Image by clicking its Top Right Maximise tab.
Now is a good time to save your Layered Image as a GIMP XCF File.
Congratulations, you are now ready for the next step.
Now, from the left-side Toolbox, activate the Move Tool.
And then left-click to activate the Moon Image’s Layer.
Then left-click over the Moon Image - and drag it to a position of your liking, over the Sky Image - as demonstrated below.
5/ Understand Blend Modes
Now, change the Top Layer’s (the Moon Image’s) Blend Mode from Normal to Screen - as demonstrated below.
For personal blends, experiment with different Blend Modes and Layer Opacities.
Changing the Blend Mode to Screen blends the Moon image’s pixels with the Sky Image beneath it - as demonstrated below.
6/ Flatten Image
When you are completely happy with your final blend; from the top menu, choose Image and then choose Flatten Image.
To create extra impact, apply a Sharpening Filter of your choice - Filters then Enhance.
Congratulations, your Sky and Moon Blend is complete, and it is ready to save - top menu, then File then Save As.
Wendi E. M. Scarth. Top of Page - Home.