Red in eye whites

Discussion in 'Photoshop' started by RDOC, Sep 18, 2011.

  1. RDOC

    RDOC Guest

    What is the best technique for removing the red in the white of the
    eyes when the white itself is a good color but it has red running
    through it. Thanks.
     
    RDOC, Sep 18, 2011
    #1
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  2. RDOC

    Savageduck Guest

    Layers!

    Matt Kloskowski outlines a method for doing just that in his "Layers"
    book. Here is an abbreviated version of his method.

    1: Add a "Hue/Saturation" adjustment layer.
    2: Choose "Red" from the pop-up menu and reduce the saturation setting.
    (at this stage that effects the entire image, don't worry about that)
    3: Now in the adjustment layer pop-up, select "Master" increase the
    setting to about "20" to lighten the whole image.
    4: Fill the adjustment layer mask with black by pressing "Command-I
    (PC: Ctrl-I) to invert the white to black.
    5: Zoom in on the eye. Press "D" to set foreground to white, select the
    "Brush" tool and paint with white over the whites of the eyes.
    6: Adjust the opacity of the layer to about 80% to make the change
    subtle and realistic.
     
    Savageduck, Sep 18, 2011
    #2
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  3. RDOC

    Carrie Guest

    I don't think I've ever come across this problem, but going to save this
    for future reference.
     
    Carrie, Sep 18, 2011
    #3
  4. RDOC

    Savageduck Guest

    Think of the individual suffering from allergies, a late night, or any
    other eye rubbing event which might make the whites of the eye less
    than a natural white.
    It is also a way to fix stuff such as red-eye, or "luminous-eye" in
    animals, or even change the appearance of the irises.

    It is a useful technique for doing all sorts of stuff when toying with
    an image, and not just limited to whites of eyes. Take a look at this
    "non-eye" example done using that exact method.
    < http://homepage.mac.com/lco/filechute/DNC_9927Hw.jpg >
     
    Savageduck, Sep 18, 2011
    #4
  5. RDOC

    Carrie Guest

    Thanks! I know animal eyes aren't always easy to do.
     
    Carrie, Sep 18, 2011
    #5
  6. In CS3 to CS5 there has been a 'red eye' removal procedure. Go to the
    Help / Photoshop menu. Here's the procedure for CS5.


    The Red Eye tool removes red eye in flash photos of people or animals.

    In RGB Color mode, select the Red Eye tool . (The Red Eye tool is in the
    same group as the Spot Healing Brush tool . Hold down a tool to display
    additional tools in the group.)
    Click in the red eye. If you are not satisfied with the result, undo the
    correction, set one or more of the following options in the options bar,
    and click the red eye again:
    Pupil Size Increases or decreases the area affected by the Red Eye tool.
    Darken Amount Sets the darkness of the correction.
     
    John J Stafford, Sep 19, 2011
    #6
  7. Actually the easiest way is to make a new layer, zoom into the red-eye,
    select by color red, then hit the 'desaturate' option.
     
    John J Stafford, Sep 19, 2011
    #7
  8. RDOC

    Carrie Guest

    Wow! Never thought of that. Now I want to try it, but would have to find
    a red eye picture, which I usually don't get because I don't use flash a lot
    and my camera has a pop up flash, that gets it up away from the lens. But
    sometimes someone will send me a picture, sometimes ask me if I can fix it.
    I still want to find a green flash eye dog picture, I can use the Leopard
    (BEFORE) one posted elsewhere here) and it's past 11 pm and I have to at
    least aim at going to bed...
     
    Carrie, Sep 19, 2011
    #8
  9. RDOC

    Savageduck Guest

    Try that.
    You will find that you end up with a very unnatural luminosity issue
    and the problem is not entirely fixed, but compounded. So to correct
    your "desaturation" you will have to take a few more steps, the
    simplest is to use the "Brightness/Contrast" adjustment layer after
    your "desaturation" step and even that might not be enough.

    It is workable, but the results are somewhat different, and sometimes
    looks as unnatural as painting the glowing pupil in black.

    In reality no one technique is the perfect one. Different circumstances
    might call for a different technique to obtain the best result. Again
    another good reason for working in Layers so you can always go back to
    step one.
     
    Savageduck, Sep 19, 2011
    #9
  10. RDOC

    Savageduck Guest

    Just to remove any confusion using layers can work for fixing red or
    bloodshot whites of the eye, as well as traditional retinal reflective
    "red-eye". Remember the white of the eye is not pure white and a pure
    white sclera is going to make for a very disturbing image. :)
     
    Savageduck, Sep 19, 2011
    #10
  11. Thanks for that. You are right.
     
    John J Stafford, Sep 19, 2011
    #11
  12. RDOC

    RDOC Guest

    The problem here when I used this technique was that the redness was
    due to capillaries and I got rid of the redness but was left with a
    network of grey capillaries. This meant I now had to remove that
    network which I did with the stamp tool which I could have done the
    whole procedure with it to begin with but you need a good area to
    clone from which I did have. However thanks for your help and it
    created a good discussion.
     
    RDOC, Sep 20, 2011
    #12
  13. RDOC

    Savageduck Guest

    I understood exactly what your issue was with that image. This
    technique is not meant to remove those capillaries completely, that
    would make everything appear unnatural. If you read what I wrote in
    step #2, it was "reduce" the saturation, not desaturate.
    What you are doing is removing the distraction of over emphasized 'red"
    in those blood vessels, and maintaining their natural appearance as
    they would in a normal eye.

    So try again, not desaturating reds until the blood vessels appear an
    unnatural grey, but to the point where they are not distracting.
    Step #3 will brighten the entire sclera (white of the eye). Note that
    "+20" is suggested as over brightening will make for a strange and
    disturbing eye.

    The problem with any correcting or adjustment method in photoshop is
    when it is applied with a heavy hand. Subtlety is the key to reaching a
    realistic improved image.
    So here is a comparison 100% crop of the fix in action.

    < http://homepage.mac.com/lco/filechute/EYE-FIX-Comp-1.jpg >
     
    Savageduck, Sep 20, 2011
    #13
  14. RDOC

    Joel Guest

    Photography - the best technique is to prevent it in the first place by
    using pre-flash (most digital cameras epecially P&S has it as default, or
    user just select Red-Eye option). The other option for DSLR user by raising
    the flash (external flash) higher would reduce the red-eye (in most cases
    not all).

    Retouching - the best technique is the technique you know best, and one of
    the simplest technique is selecting the area then apply Hue/Sat and one of
    many tools to change the color (to whatever color you wish).
     
    Joel, Sep 26, 2011
    #14
  15. RDOC

    Joel Guest

    Everything has to start with the very basic and finish with the very
    basic. In general

    1. You select the area you want to change. This way the change won't bleed
    to other area (depending on the tool/technique you use)

    2. It you can't stop it from bleeding, then you can always use another
    techinque/tool to recover it to the original (like using Layer + Layer Mask)

    3. Many tools have sub-tools/options like COLORS many color tools give the
    option to change only specific color's.

    4. And sometime you have to apply the same command multiple times (I usually
    don't but I know it will make some difference). Example

    a. Applying some Hue/Sat to some degree

    b. Applying another Hue/Sat

    c. Applying another Hue/Sat

    The above is an example, why? because the A command applying some
    percentage to the *original*, the B command applying to the A (has changed),
    and the C command (3rd time) applying the the B (more change and different
    than the original and A).
     
    Joel, Sep 26, 2011
    #15
  16. RDOC

    Savageduck Guest

    Joel, the OT was asking how to remove, or fix red in the WHITE of the
    eye, such as bloodshot eyes, or over visible red blood vessels, not
    "red-eye" in the pupil caused by flash.
    Something like this 100% crop comparison:
    < http://homepage.mac.com/lco/filechute/EYE-FIX-Comp-1.jpg >

    For "red-eye" you are correct, in that it is better to take preventive
    measures by using the "red-eye"prevention settings with a pre-flash, or
    using indirect or offset flash.
    Exactly.
     
    Savageduck, Sep 26, 2011
    #16
  17. That is an excellent candidate for using an adjustment layer rather than
    editing the actual data. An adjustment layer does not introduce the
    cumulative potentially undesirable effects of repeated small adjustments
    (like banding) caused by working with only eight bits available per channel.
     
    Andrew Morton, Sep 27, 2011
    #17
  18. So that the subject's irises are constricted. Do you know that to the
    average human observer, such makes the subject look less attractive? Do
    you care?
     
    John J Stafford, Sep 27, 2011
    #18
  19. RDOC

    Joel Guest

    That's one of 1001 different ways to fix the RED/WHITE and 1001 other
    issues.

    You just need to be the same level of skill to understand the technique.
    IOW, you don't need to correct thing you don't know
     
    Joel, Oct 8, 2011
    #19
  20. RDOC

    Joel Guest

    Hey, read and ask the right question. If you care to learn.
     
    Joel, Oct 8, 2011
    #20
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