Easy
Easy and quick to do, these can be used as a small enhancement to graphics.
-
Using an extracted image, you can make a silhouette figure out of it.
-
How to add a subtle grainy look to your images
-
Greyscaling an image and selectively choosing which parts stay in color
-
Starting with a greyscale image and adding color to certain parts
-
A common tutorial, except with extra enhancements
-
An easy way to make a inset metallic button
-
How to blend images to make a horizontal banner
-
Blending the background to create soft edges on an image