Masks VS Alpha Channels in Photoshop - What's the difference?

Discussion in 'Digital Photography' started by PkennethV, Nov 4, 2008.

  1. PkennethV macrumors 6502a

    Joined:
    Aug 16, 2006
    Location:
    Toronto
    #1
    So far, I don't think I've once used an alpha channel before in Photoshop. I seem to be able to get everything done by using masks only. I am getting the feeling that maybe some of the things that I currently do with mask might be easier done with alpha channels, otherwise why would both features exist (or was one of them introduced in a later version of photoshop and the other was never dropped)?

    So when do you guys use one over the other?
     
  2. PkennethV thread starter macrumors 6502a

    Joined:
    Aug 16, 2006
    Location:
    Toronto
    #2
    So it looks like no one really uses alpha channels then?...
     
  3. ChrisA macrumors G4

    Joined:
    Jan 5, 2006
    Location:
    Redondo Beach, California
    #3
    I don't but then I do photography not graphic design. Ask the guys who layout graphics to be printed of retail packaging or whatever. They have good use for transparency.
     
  4. Phrasikleia macrumors 601

    Phrasikleia

    Joined:
    Feb 24, 2008
    Location:
    Over there------->
    #4
    Alpha channels are great for when you want to save a mask for use on multiple layers or for later editing, or for when you want to combine masks using channel calculations (to get the difference between two selections or a combination of two selections, for example). I use them all the time.
     

Share This Page