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Activity › Forums › Adobe Photoshop › can’t you use a color channel to make an alpha channel?

  • Adobe Photoshop

    can’t you use a color channel to make an alpha channel?

    Posted by Milton Hockman on February 16, 2006 at 4:57 pm

    I thought there was a way to go to the channels palatte and use one of the RGB layers that is high in contrast to derive an alpha from. How do you do that?

    Jeff Kelley replied 20 years, 2 months ago 2 Members · 1 Reply
  • 1 Reply

  • Jeff Kelley

    February 17, 2006 at 3:18 pm

    Can’t you dup the channwl and them use channel options to change it?

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