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Thread: Backlit Spanish Moss

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    Backlit Spanish Moss

    I like Spanish Moss, so evocative of swamp movies or maybe 'Deliverance' . .

    We don't have as much round here as say Louisiana or Floordah, but this caught my eye on a walk today:

    Backlit Spanish Moss

    Had the moss not been backlit, I likely wouldn't have noticed it. I used an 'S' shaped luminosity curve on it to bring out the moss - then used low-radius wavelets to up the contrast of the moss fronds and much larger negative wavelets plus impulse NR to tone down the background a bit.

    Not looking for composition comments, it was just a snap (they all say that, right?) but happy to go on for hours about the joy of wavelet processing.
    Last edited by xpatUSA; 26th October 2017 at 12:20 AM.

  2. #2
    JohnRostron's Avatar
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    Re: Backlit Spanish Moss

    Quote Originally Posted by xpatUSA View Post
    Not looking for composition comments, it was just a snap (they all say that, right?) but happy to go on for hours about the joy of wavelet processing.
    OK then, tell us about wavelets; or at least explain why wavelet processing was relevant to your Spanish Moss. My limited understanding is that is related to Frequency Separation and to Fourier Transforms. Perhaps you could give us a pointer to the image processing software you used.

    John

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    Re: Backlit Spanish Moss

    Quote Originally Posted by JohnRostron View Post
    OK then, tell us about wavelets;
    Probably not enough space to simply "tell us about wavelets", may I offer the Manual Section:

    http://rawpedia.rawtherapee.com/Wavelets

    or at least explain why wavelet processing was relevant to your Spanish Moss.
    Relevant in that it was possible to apply contrast to objects of a selected size because an image gets split into layers of object-size 2x2, 4x4, 8x8, etc. I was thereby able to apply contrast to the small moss details but not to surrounding larger objects. Additionally I was simultaneously able to reduce the contrast of large background objects so as to bring out the spanish moss.

    My limited understanding is that is related to Frequency Separation and to Fourier Transforms.
    Sorry, I have little idea how it works mathematically, only that it does.

    Perhaps you could give us a pointer to the image processing software you used.
    Pardon the omission.

    RawTherapee:

    https://en.wikipedia.org/wiki/RawTherapee

    http://rawpedia.rawtherapee.com/Main_Page

  4. #4
    JohnRostron's Avatar
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    Re: Backlit Spanish Moss

    Thanks for that. I will follow your links.

    John

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