Planet Photoshop

Posted by Corey Barker

Corey is an education and curriculum developer for KelbyOne. He is a graduate of the Ringling School of Art & Design in Sarasota, FL, with a degree in Illustration. Over the years, Corey has worked as a graphic artist in a variety of disciplines such as illustration, commercial design, large format printing, motion graphics, web design and photography. His expertise in Photoshop and Illustrator have earned him numerous awards in illustration, graphic design and photography. Using Photoshop since version 2, his expertise and creativity have evolved exponentially with every new version, which makes Corey an invaluable addition to the KelbyOne team.

60 comments on “Masking with Channels

  1. Thanks for hitting this topic! It’s really helpful. Using the Multiply Blend Mode is brilliant! I’ve used this technique before and have run into issues at times where my parts of my subject and the background both come out the same tone of gray in the Alpha channel. The overlay brush become relatively useless at that point. Any suggestions on how to make accurate selections in this scenario?

  2. Another useful set of tools are Dodge and Burn. Set the Burn to Shadows and work on the blacks in the mask and set the Dodge to highlights and work on the whites. I’ve been using the calculations for the past six months or so. Works wonders.

  3. Well this is good when you have a solid background with a whole other light than on the subject but if there is a shadow or anything around the edges of the subejct that connects it to the background in a toning way, it doesent work that well.

  4. Thank you for posting this, this is going to be a very useful technique.
    A true time saver.
    Your tutorials are great, thorough and easy to understand.

    Erik.

  5. Pingback: Rated Design – Creating masks for complicated images by using channels

  6. I wish you’d see the movie “Tell Tale” and then do a tut on the movie poster!

    I just finished watching the video on Law Abiding Citizen, great tut! Love this one too!
    Thanks
    Debbi

  7. Just when i think u did enough u come out with this awesome tutorial that, i would say 98% of the ppl have trouble with, is not only amazing but easy to do. Just keep up the good work.

    Thanx for this tut.

  8. Dear Admin,
    Thanks a lot about the nice website and cut information what you provided to us really its amazing corey, simply awesome also i want share my colleagues in from your website complete and free full DVD photshop Training videos ad an other software its free for graphic designer a gin thanks
    take note website link : http://www.ebooks.allnewthings.com

    Kind regards,

    Said Abdulllah

  9. Dear Admin,
    Thanks a lot about the nice website and cut information what you provided to us really its amazing simply awesome also i want share my colleagues in from your website complete and free full DVD photshop Training videos ad an other software its free for graphic designer a gin thanks
    take note website link : http://www.ebooks.allnewthings.com

    Kind regards,

    Said Abdulllah

  10. Yes i agrre selecting with channels is somtimes very usfuel but i wish u wouldnt always use the best passible image for doing things like this to show someof the more problams ppl get with day to day shots

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    AND OF COURSE MAKE A VIDEO.
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  12. Thanks, this is something I need to work on for lifting models off my studio background, you did a good job with this tutorial.

  13. Thanks Core,

    That was really a nice tutorial for removing complex backgrounds.
    What really like is the little cool trick of unlocking the layer ;)
    I really love Photoshopusertv.com as well.

    Keep it up good work,

    321webdesigner
    http://ruakbar.deviantart.com

  14. I enjoyed this. A lot to digest and channels and calculations have always been part of Photoshop and a very powerful one at that. We can also duplicate our images and change the mode (Lab, CMYK etc.) to find mask candidates and calculate them into the original doc.

  15. you can turn the alpha channel into a selection more easily by just clicking one the little picture of the alpha channel while you press the Cmd/Ctrl button. channel masking rules!

  16. Ahh, thank you so much! It took me forever to select something out of a photo before, but this really helps me for the future :) thanks again ~

  17. So gonna be using this in future. How many times have I had to really quick and dirty rough visuals with dodgy cutouts to put in front of a client explaining that it will be finished properly in final a/w.

    Wicked tutorial, more please.

  18. WoW.. That’s so awesome ^_^
    I never thought it could be extracted from there…
    It would be impossible.
    But you made it Possible man…

    NICELY DONE!

    Many Many Thanks to you!

  19. I’d been burning and dodging the alpha channel for more precise selections but this masterful use of the blending modes is pretty exciting. Thanks for the introduction to the calculations tool, too.

  20. any idea why is my extraction result always has a bit of transparent effect in some area ? (especially Black coloured area)