Red and Black Mix

Discussion in 'Photoshop Tutorials' started by Bill Newton, Aug 1, 2005.

  1. Bill Newton

    Bill Newton Guest

    I recently took some digital photographs at a wedding, and on producing the
    first printout, I see the dark suits worn by the men are littered with
    scattered red pixels.

    I would be very grateful if one of you enthusiasts out there could offer me
    some advice as to what the cause of the problem is, and maybe how it could
    be rectified.

    Thanks in anticipation of a helpful response.


    Bill Newton, Aug 1, 2005
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  2. Bill Newton

    Kingdom Guest

    Kingdom, Aug 1, 2005
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  3. Bill Newton

    MetaMorph Guest

    Can you point us to the pic via a web URL, so we can take a look??
    MetaMorph, Aug 2, 2005
  4. Bill Newton

    Bill Newton Guest

    I wish it was that easy :))

    Bill Newton, Aug 2, 2005
  5. Bill Newton

    Odysseus Guest

    Most likely just noise, which tends to be most noticeable in shadow
    areas. Try the Dust and Scratches filter; if it softens the image too
    much try using it only on the channel that's most affected.
    Odysseus, Aug 2, 2005
  6. Bill Newton

    Jason Warren Guest

    Bill, you don't, by chance, have View > Gamut Warning turned on do you?
    Jason Warren, Aug 5, 2005
  7. Bill Newton

    Bill Newton Guest

    Bill Newton, Aug 5, 2005
  8. Bill Newton

    Hunt Guest

    Hunt, Aug 5, 2005
  9. Bill Newton

    Hunt Guest

    Back to your problem. I've followed the thread, and have seen some good
    possible causes. I am at a loss, as to how I can add anything, but would like
    to see one of the images to explore. It doesn't appear that you have posted
    any to the Web, so I'd like to offer to view one, if you would e-mail it to
    me. As I get enough spam already, I'll encrypt my e-dress: 49830$29
    . All you have to do is remove everything before the "i" in
    info, and change biz to com. Please send a large, fairly low-compression JPG,
    if possible, so I can see as clearly as is possible, the problem.

    Thanks, and good luck,
    Hunt, Aug 5, 2005
  10. Bill Newton

    Bill Newton Guest

    Hi Hunt, I found your recent comments very encouraging. It's good to know
    that there are some skilled folk about who are prepared to share their
    knowledge with less talented bods such as me.

    Fortunately for me, a colleague of mine came visiting just yesterday, and
    although he's no PS expert, he was knowledgeable enough to (I think) solve
    my problem. He showed me how to adjust my colour settings (Shft/Cntrl/K) in
    PS, along with the Adobe Gamma settings on my monitor.

    I realise these are subjects that I could have read up on, but I must
    confess that I have always found 'help files' rather confusing. Strangely
    though, once I am shown, and understand how to do something, the 'help
    files' make perfect sense to me!

    Hope you know what I mean:)

    Many thanks to yourself and all other folk that helpfully responded.


    Bill Newton, Aug 6, 2005
  11. Bill Newton

    Larry Linson Guest

    Reading comprehension problem.
    Larry Linson, Aug 6, 2005
  12. Bill Newton

    Hunt Guest


    The most important thing is that you have a solution. When you have ironed it
    all out, please let the group know what you discovered, as several of the
    earlier replies had some good thoughts, even though some may have been
    divergent, because they were speculating on the possible cause. I, for one,
    would really like to know what was causing the problem to begin with.

    Hunt, Aug 6, 2005
  13. Bill Newton

    Hecate Guest

    Help files should generally be renamed Hinder Files. :)

    That's why there's such a market in Photoshop books ;-)


    Hecate - The Real One

    Fashion: Buying things you don't need, with money
    you don't have, to impress people you don't like...
    Hecate, Aug 7, 2005
  14. Bill Newton

    Tom Nelson Guest

    [[ This message was both posted and mailed: see
    the "To," "Cc," and "Newsgroups" headers for details. ]]

    This sounds like the kind of single-pixel noise you get at high ISO
    settings. Pixels get stuck "on" and record as a bright colorful spot.

    Individual pixels are easily tamed with the Clone Stamp or Spot Healing
    Brush tools. Large areas are nearly as easy to fix.

    Duplicate the background layer. Set the blend mode for the new layer to
    "darken." With the Move tool active, press any arrow key on your
    keyboard to move the copied layer 1 pixel. The spots (being 1 pixel in
    size and all brighter than their surroundings) disappear.

    You may find that fine dark detail (eyelashes) gets widened
    unnaturally. Use a layer mask to exempt those areas from your

    Tom Nelson
    Tom Nelson Photography
    my ISP does not have an "x" in its name
    Tom Nelson, Aug 12, 2005
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