Digital Image Compositing Fundamentals

Digital Image Compositing Fundamentals introduces the reader to the concepts and terminology behind digital imaging, including pixels, channels, layers, compositing, alpha, masking, compression, blending, dithering, color depth and the like.
What You'll Learn:

What are the most common memes in digital imaging 
What comprises a digital image compositing pipeline
What are the concepts behind digital imaging
How to install and use GIMP 2.8 or 2.9
What are and how to use the concepts behind color depth and image optimization