Page 1 of 2 12 LastLast
Results 1 to 10 of 12
  1. #1
    Newbie
    Join Date
    Dec 2012
    Posts
    3
    Post Thanks / Likes
    Mentioned
    0 Post(s)
    Activity
    Points
    142
    Level
    4
    Lv. Percent
    36.39%

    want to capture image with only red channels showing

    Hello!

    In my RGB image, I have duplicated the Red channel and turned others off, leaving only 2 red channels visible. I am trying to capture the image in this state but have been unsuccessful. I have tried duplicating the red channel twice into a new document, but the effect ends up being washed out. How could I achieve this effect?

  2. #2
    Forum Moderator IamSam's Avatar
    Join Date
    Sep 2012
    Location
    Texas
    Posts
    7,998
    Post Thanks / Likes
    Mentioned
    167 Post(s)
    Activity
    Points
    33,179
    Level
    48
    Lv. Percent
    77.1%
    Achievements LuminaryQualified to FreelanceConversation StarterPost Guru
    Awards Challenge WinnerScholarPhotoshop Guru

    Re: want to capture image with only red channels showing

    Hi VJGF,

    I'm working on this one, so far I've got nothing. I did find this TUTORIAL on printing split/separate channels, but I don't think that's what your looking for.

    You may be stuck with reproducing the two red channels overall effect using colorization techniques.

  3. #3
    Forum Moderator Tom Mann's Avatar
    Join Date
    Oct 2012
    Posts
    5,391
    Post Thanks / Likes
    Mentioned
    74 Post(s)
    Activity
    Points
    19,626
    Level
    39
    Lv. Percent
    49.6%
    Achievements Post GuruQualified to FreelanceCelebrityAdvocate
    Awards Photoshop GuruPhotographer

    Re: want to capture image with only red channels showing

    OP, I'm not sure I completely understand your question.

    Are you looking for the intensely red look as shown in the attached screen capture of a junk image, with the red channel and the duplicate red channel both turned on?

    Tom M
    Attached Thumbnails Attached Thumbnails want to capture image with only red channels showing-screen_grab-two_red_channels_on-jpg  


  4. #4
    Forum Moderator Tom Mann's Avatar
    Join Date
    Oct 2012
    Posts
    5,391
    Post Thanks / Likes
    Mentioned
    74 Post(s)
    Activity
    Points
    19,626
    Level
    39
    Lv. Percent
    49.6%
    Achievements Post GuruQualified to FreelanceCelebrityAdvocate
    Awards Photoshop GuruPhotographer

    Re: want to capture image with only red channels showing

    If that's the look you are trying to obtain, one can get close by just adding three simple layers: duplicate the base image into a new layer; desaturate it, set the blending mode to soft light, and place it between two red color adjustment layers as can be seen in the attached screen grab. It's close, but not perfect. With a little tweaking, you could get it even closer. Let me know if this is what you are looking for and I'll write up more details.

    HTH,

    Tom M
    Attached Thumbnails Attached Thumbnails want to capture image with only red channels showing-similar_look_via_conventional_techniques-jpg  


  5. #5
    Forum Moderator Tom Mann's Avatar
    Join Date
    Oct 2012
    Posts
    5,391
    Post Thanks / Likes
    Mentioned
    74 Post(s)
    Activity
    Points
    19,626
    Level
    39
    Lv. Percent
    49.6%
    Achievements Post GuruQualified to FreelanceCelebrityAdvocate
    Awards Photoshop GuruPhotographer

    Re: want to capture image with only red channels showing

    I don't know if the OP is still around, but while waiting for something else, I spent a couple more minutes refining my previous version (basically, nothing more than a couple of curves layers), and came up with the following.
    Attached Thumbnails Attached Thumbnails want to capture image with only red channels showing-similar_look_via_conventional_techniques-v2-01-jpg  


  6. #6
    Forum Moderator IamSam's Avatar
    Join Date
    Sep 2012
    Location
    Texas
    Posts
    7,998
    Post Thanks / Likes
    Mentioned
    167 Post(s)
    Activity
    Points
    33,179
    Level
    48
    Lv. Percent
    77.1%
    Achievements LuminaryQualified to FreelanceConversation StarterPost Guru
    Awards Challenge WinnerScholarPhotoshop Guru

    Re: want to capture image with only red channels showing

    Thanks Tom, I appreciate your efforts! I think we lost the OP on this one.

  7. #7
    Newbie
    Join Date
    Dec 2012
    Posts
    3
    Post Thanks / Likes
    Mentioned
    0 Post(s)
    Activity
    Points
    142
    Level
    4
    Lv. Percent
    36.39%

    Re: want to capture image with only red channels showing

    hey guys, sorry had a busy week. this is what I'm trying to reproduce. notice how I have only the red channel and a red channel duplicate visible. want to capture image with only red channels showing-exam-jpg

    I can sort of come close to this effect if I duplicate the red Channel like 10 times in a new document, but not quite. the contrast ends up being way too high. I've tried painting black over the other channels but it doesn't give this effect - ends up giving some weird neon colors. I'm really not sure how I would duplicate this via colorization techniques.

  8. #8
    Forum Moderator Tom Mann's Avatar
    Join Date
    Oct 2012
    Posts
    5,391
    Post Thanks / Likes
    Mentioned
    74 Post(s)
    Activity
    Points
    19,626
    Level
    39
    Lv. Percent
    49.6%
    Achievements Post GuruQualified to FreelanceCelebrityAdvocate
    Awards Photoshop GuruPhotographer

    Re: want to capture image with only red channels showing

    Something odd is going on because if you look at my first post in this thread, you'll notice that I also have the red and "red copy" channels on, and I get a very different look -- specifically, much more saturation in the brighter areas of the image.

    Can you pls. your psd file for that image? I want to view it "normally", as well as see if you have anything else going on in your psd file that helps produce that look.

    Cheers,

    Tom M

  9. #9
    Guru Paul's Avatar
    Join Date
    May 2011
    Location
    Perth W.A. the really hot state.
    Posts
    12,288
    Post Thanks / Likes
    Mentioned
    65 Post(s)
    Activity
    Points
    49,583
    Level
    56
    Lv. Percent
    97.84%
    Achievements Qualified to FreelanceLove GuruReporterPost Guru
    Awards Challenge WinnerPhotoshop GuruChallenge Creator

    Re: want to capture image with only red channels showing

    I did this with just one new red channel copy, you can then adjust that copy layer via curves to adjust saturation of red colour, if this is what you are trying to achieve/ask?

    want to capture image with only red channels showing-faceredchannel-jpg


  10. #10
    Newbie
    Join Date
    Dec 2012
    Posts
    3
    Post Thanks / Likes
    Mentioned
    0 Post(s)
    Activity
    Points
    142
    Level
    4
    Lv. Percent
    36.39%

    Re: want to capture image with only red channels showing

    I'll post the PSD tomorrow when at my work station

    Paul, yes that's what I was trying to achieve - the question is how do I export/save it with just the red channels showing? If you save that file, the other channels show as well, not just what you have visible.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
About Photoshop Gurus
Photoshop Gurus (PSG) is a friendly community of designers and artists who enjoy all things related to Photoshop. PSG can consider itself one of the oldest Photoshop sites and has recently had it's 10th anniversary. We've come a long way and have every intention to continue supporting the Photoshop community. Photoshop can be an overwhelming program for beginners and that's how we try to help. We have a friendly forum, tutorials and all resources to help you understand this wonderful program. Feel free to look around and if you have any questions, don't hesitate to ask. Happy browsing!