Here is the original assignment.
Step 1 – Acquiring Two Images
To combine two images together, you first must have two images. Find two images that would overlay well together from an online source or from your personal media collection. Below are the two images I acquired.
Step 2 – Acquiring / Opening GIMP
Download GIMP here. Follow the instructions of the site and/or the accompanying installer to install GIMP.
Open GIMP. The interface should appear similar to the image below.
Step 3 – Opening As Layers
In the console, go to File -> Open As Layers. Then, multi-select the images you want to combine (CTRL + left click to multi-select). Select Open.
Step 4 – Adjusting The Opacity
In the Layers sub-window, select the image you would like to act as an overlay by left clicking the item. Above, you will see an opacity slider. Modify the value from 100 be a value around 50. This has the effect of blending the two images together.
Step 5 – Moving The Overlay
Adjust the location of the overlay by changing to the Move Tool. Select the Move Tool by clicking on the image of two intersected lines, highlighted in the image below. Once selected, you may drag and drop the overlay to change its location respective to the background image.
Step 6 – Exporting The Image
Once you are satisfied with the combined image, go to File -> Export As. Give the new image a name, and click Export. A followup menu will appear asking details about the requested quality of the new image. Select Export to save the image.
Here is the image I created during this tutorial. It features the blue-screen of death overlaid on top of an image of fast food. This image depicts human-death as a result of eating fast food. This is parallels when a computer crashes as a result of poor maintenance.
Thanks for reading! Good luck on creating a combined image using GIMP!