The Transparency of Digital Imaging: Alpha Channel

  • Wallace Jackson


Now that you have an understanding of the basic color depths used in most digital-image-editing and compositing pipelines, we are going to be focusing on the 32-bit RGBA mode from here on out. The RGBA mode is tantamount for all of the compositing layers in an image composite other than the 24-bit color image back plate. We are also not going to focus on High Dynamic Range Imagery (HDRI) because it is data heavy and not practical for the types of usage that most of the book’s readers will target, which include the Internet, e-books, iTV sets, smart phones, smart watches, tablets, netbooks, laptops and so forth.


Image Composite Checkerboard Pattern Ring Element Layer Mask Image Alpha 

Copyright information

© Wallace Jackson 2015

Authors and Affiliations

  • Wallace Jackson
    • 1
  1. 1.CAUS

Personalised recommendations