How do I make this red channel effect in Photoshop

Discussion in 'Digital Photography' started by patent10021, Jun 12, 2019.

  1. patent10021 macrumors 68030

    patent10021

    Joined:
    Apr 23, 2004
    #1
    At first I thought it was just the red channel, but there seems to be more going on.

    Please explain the steps I need to accomplish this.
     

    Attached Files:

  2. Janichsan macrumors 68000

    Janichsan

    Joined:
    Oct 23, 2006
    #2
    I came up with this in a couple of minutes:

    [​IMG]

    This is just a picture of the cactus converted to black and white, and a slightly transparent (at 75%) red layer on top with the mode set to darken.
     
  3. patent10021, Jun 12, 2019
    Last edited: Jun 12, 2019

    patent10021 thread starter macrumors 68030

    patent10021

    Joined:
    Apr 23, 2004
    #3
    Interesting. Thanks.

    EDIT: I tried it but somehow I can't get that depth and translucent vibe to it. When I do it, it just looks like there's a red faded film on top. Maybe it's because of the subject matter.

    When I do it the white background still looks quite white. It does not get that deep red color. If I make it more red than the whole subject gets super red. In order to get my white as red as your pic and the sample pic my subject cannot be seen.

    I don't know why yours worked but mine doesn't. You can see my new attachment. Weird.
     

    Attached Files:

  4. Laird Knox macrumors 68000

    Joined:
    Jun 18, 2010
    #4
    If using Photoshop just create a new Hue/Saturation layer and click on the colorize checkbox.

    upload_2019-6-12_15-46-51.png
     
  5. patent10021, Jun 12, 2019
    Last edited: Jun 12, 2019

    patent10021 thread starter macrumors 68030

    patent10021

    Joined:
    Apr 23, 2004
    #5
    --- Post Merged, Jun 12, 2019 ---
    Thank you. I don't know if this is the same effect because it produces totally different results. It looks just like I saturated it. It doesn't look like a channel effect.
     
  6. kallisti, Jun 12, 2019
    Last edited: Jun 12, 2019

    kallisti macrumors 65816

    kallisti

    Joined:
    Apr 22, 2003
    #6
    While this isn't exactly the effect you are describing, thought it might be helpful nonetheless.

    This was done in LR and not PS.

    I converted the image to B&W and then applied split-toning with the colors somewhat matching what you are trying to achieve.

    The advantages of doing it this way are that you have several sliders that you can adjust to get the image just how you want it (overall exposure, overall contrast, highlight adjusts, shadow adjusts, black point, white point, split-toning applied to highlights, split-toning applied to shadows, shifting the balance between the two). All are non-destructive edits so you can tweak to your vision in real-time.

    This subject has a varied background and not a white background. So I'm not sure if the differences in this image from your "ideal" image reflect adequacy of this technique for what you want to achieve vs the possibility that the specific "look" you are going for really requires PS.

    [​IMG]
     
  7. patent10021 thread starter macrumors 68030

    patent10021

    Joined:
    Apr 23, 2004
    #7
    Looks nice. Sort of a retro vibe to it. Thanks. Unfortunately I don't use LR and I really need to try and get the same effect as the sample image.
     
  8. kallisti, Jun 12, 2019
    Last edited: Jun 12, 2019

    kallisti macrumors 65816

    kallisti

    Joined:
    Apr 22, 2003
    #8
    Do you have a sample starting image that you want to achieve this effect with that you could share? Knowing what you are starting with might make it easier to sort out how to get you to where you want to go.
     
  9. patent10021 thread starter macrumors 68030

    patent10021

    Joined:
    Apr 23, 2004
    #9
    Hi. I'm starting with something pretty much exactly like this attachment with a person and the ocean in the bg. I cut the person out with the lasso tool so I would end up with just a white bg like the above photo with the guy wearing the cap in my first post and Janichsan's post with the cactus.

    I applied the steps given by Janichsan and got the results as shown in my second post. The white always looked pinkish not that deeper red like my sample image in my first post or Janichsan's image. To compensate I had to boost the red therefore the person's face got too red as seen in my attempt.

    Maybe the lighting of the subject makes a big difference. A person or cactus is in a studio-like environment where there are deep tones vs my image which was cut from a beach shot has too much light on the face.
     

    Attached Files:

  10. Janichsan macrumors 68000

    Janichsan

    Joined:
    Oct 23, 2006
    #10
    That looks a bit like you didn't set the layer mode to darken. If I don't do this, my cactus picture looks like this:

    [​IMG]

    Yeah, the picture surely makes a difference. You need a certain contrast in it to get a good result. You can tinker with the settings of the black and white conversion around to get a more suitable base picture.

    I applied my method from above to your picture and got this:

    [​IMG]

    I reduced the blue and cyan settings somewhat in the B&W conversion to get a more contrastful base picture.
     
  11. patent10021 thread starter macrumors 68030

    patent10021

    Joined:
    Apr 23, 2004
    #11
    Ah, yes you are right. I didn't set the mode to Darken. It works now. Although Darken didn't work well for me. It turned the skin greenish. I had to use Multiply. Probably Darken is best for lighter skin and Multiple for darker skin?

    Thank you.
     
  12. Janichsan macrumors 68000

    Janichsan

    Joined:
    Oct 23, 2006
    #12
    That normally shouldn't happen if you have converted the picture to black and white.

    Multiply and darken give at least very similar, usually even identical results for me. So, I guess it's what's ever works for you.
     
  13. Laird Knox macrumors 68000

    Joined:
    Jun 18, 2010
    #13
    It looks pretty similar to me. I didn't take the time in the first post to match it exactly. That's up to your tastes. ;)

    upload_2019-6-13_9-0-41.png
    --- Post Merged, Jun 13, 2019 ---
    Also, before the colorize step you can convert to B&W to have more control over the way the tones are handled.
     
  14. patent10021 thread starter macrumors 68030

    patent10021

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    Apr 23, 2004

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