The first step to doing the washout effect on an image in GIMP is to place the image into GIMP. There are a few ways to place the image into GIMP. This is the original image that the wash-out effect ...
Select “Edit” menu item, “Clear” to make the selection transparent. Finally save the image with default settings. Make sure to give the extension as “.png”, just specifying the file type as “PNG” does ...