Question: Looking for a specific lighting effect

Discussion in 'Photoshop Tutorials' started by BD, Jul 14, 2005.

  1. BD

    BD Guest

    Hey, all.

    I plan to take a specific picture in the near future, and am looking
    for suggestions on getting the effect that I want.

    Picture a subject holding a candle - the picture has been stripped of
    color information, but I would like the illusion of the candle casting
    a 'natural' light color onto the subject. So the edges would be all
    grey, and as you get closer to the candle, the 'yellow' tinge to the
    lighting would get stronger.

    I know how I could do this with the addition of some steps in
    Lightwave, but for Photoshop alone, I'm just not sure. Any wisdom
    would be appreciated.

    Thanks!!

    BD.
     
    BD, Jul 14, 2005
    #1
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  2. BD

    KatWoman Guest

    this is how I would do it
    leave color photo on background layer
    dupe the layer
    make a selection around the area you want to remain color, feather it a lot
    so it softly blends
    create layer mask from selection
    put a gradient on the mask
    then use Hue/Sat, pull middle slider all the way left to turn the selection
    area BW
    the masked area should remain color
     
    KatWoman, Jul 14, 2005
    #2
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  3. BD

    BD Guest

    Might work. I'd have to work through the process you suggest to see -

    But if I am reading correctly, this would result in the color
    information coming back to the subject, as well as the light. it's not
    so much that I want the masked area to remain in color - I don't want
    the subject's skin tone to become natural - I'm looking for the effect
    of a B&W subject lit by a natural light. I'd have to introduce
    something artificial, rather than work with masks against the original
    color image.

    Bit of a head-scratcher, this one. ;)
     
    BD, Jul 14, 2005
    #3

  4. Go to http://tinyurl.com/98k7g
    The image is a link to a photoshop document which will show you how
    this was done (right click and select save link target as...). The
    transparency of the topmost layer controls the fraction of the
    original color, which will contribute to the final result

    HTH, Peter
     
    Peter Wollenberg, Jul 15, 2005
    #4
  5. BD

    Kingdom Guest

    (Peter Wollenberg) wrote in 134.96.4.2:
    Think you mean without the light on the subject!

    Have posted an example PSD up on ALT.BINARIES.PICTURES.UTILITIES look for
    LaTour-Candle light image example psd file
     
    Kingdom, Jul 15, 2005
    #5
  6. BD

    BD Guest

    Oh, that's ideal! I should be able to work with that.

    Thanks much!!
     
    BD, Jul 15, 2005
    #6
  7. BD

    BD Guest

    And I guess if I wanted to avoid the original color scheme of the color
    image (ie the illusion of illuminating a fully B&W subject with color
    light), I could turn the colored layer into _only_ the color range of
    the candlelight, and then follow the same process.

    Makes good sense now that I see an example. ;)
     
    BD, Jul 15, 2005
    #7
  8. BD

    Odysseus Guest

    What if you were to start with a Curves adjustment layer in the Hue
    blending mode, with horizontal curves to create an appearance something
    like that of a black and yellow/amber duotone, then to add on top of it
    a Hue/Saturation layer with a gradient mask, more or less as KatWoman
    described, to desaturate (and, if you like, darken) the 'shadowed' areas?

    (Instead of the Curves layer you could just use a layer filled with
    solid colour -- still in Hue mode -- but this would make for a larger
    file.)

    Another possibility would be to convert the image to greyscale, then to
    a duotone using Black and a warm colour. From there, converting to
    Multichannel mode will let you vignette the spot colour however you like
    over the greys.
     
    Odysseus, Jul 15, 2005
    #8
  9. BD

    BD Guest

    I like your last suggestion - I will experiment and see what I can make
    happen. ;-)
     
    BD, Jul 15, 2005
    #9
  10. Just remove the topmost layer, I've only introduced it to keep the
    result a little bit more natural.

    Peter
     
    Peter Wollenberg, Jul 18, 2005
    #10
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