Alpha channel

Also known as alpha mask, alpha channel masking. Category: 360, 3D and output formats

An alpha channel is an additional channel in an image that stores the opacity of each pixel, from fully transparent to fully opaque. It allows soft, partially transparent edges, for example on hair or glass, which a hard clipping path cannot represent.

How PhotoRobot uses it

PhotoRobot's glossary articles describe automatic alpha channel masking replacing manual vector clipping paths in automated workflows. In PhotoRobot exports, transparency is kept in PNG and WebP files.

  • Transparent background: An image whose background pixels are transparent, so the product can be placed on any colour or layout.
  • Clipping path: A hand-drawn vector outline used to cut a product out of its background.
  • Background removal: Separating the product from its background so it can be placed on pure white or transparency.
  • PNG: A lossless image format that supports transparency; larger files than JPEG.

Where this term appears on photorobot.com

Mentioned on 7 pages of photorobot.com:

  1. What is Robotic Product Photography? (Glossary)
    Control software applies predefined algorithms to crop images, adjust color balances, and perform alpha channel masking immediately after image capture.
  2. What is 360 Product Photography? (Glossary)
    Automated post-processing scripts align the images and remove the background using alpha channel masking once all frames are captured.
  3. What is a Product Imaging Workflow? (Glossary)
    It uses predefined algorithms and alpha channel masking to eliminate the need for manual retouching.
  4. What is Automated Product Content Production? (Glossary)
    Software algorithms automatically perform alpha channel masking for background removal, margin homogenization, and color grading, ensuring absolute visual consistency across entire product categories.
  5. What is E-commerce Product Imaging? (Glossary)
    Software automates the background removal via alpha channel masking.
  6. What is Product Photography Automation? (Glossary)
    Techniques such as alpha channel masking separate the product from its background automatically.
  7. What is Scalable Product Photography? (Glossary)
    A scalable workflow replaces manual clipping paths with automated alpha channel masking and algorithmic background removal.

Browse the full glossary A–Z