Digital photography filters

Discussion in 'Photography Beginners' Forum' started by oasisvader, Aug 10, 2006.

  1. oasisvader

    oasisvader TPF Noob!

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    Does anyone know how to filter out all colors except one? i.e. I want to make a portrait black and white, but I still the the eyes to be blue. Thanks much for any help.
     
  2. Tiberius

    Tiberius TPF Noob!

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    You do that in postprocessing with a program like Photoshop or the GIMP. Two layers - one Black and White on top of one Color, then erase away the areas you want colored.
     
  3. rmh159

    rmh159 TPF Noob!

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    Mr. Tiberius means Layers but he's right on. That's how you do, pretty easy.

     
  4. oasisvader

    oasisvader TPF Noob!

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    Thanks alot!
     
  5. Big Mike

    Big Mike I am Big, I am Mike Staff Member Supporting Member

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    A better way than actually erasing the top layer, is to use a layer mask. A layer mask will give you the same result...but you can 'paint' in on or off, which makes it easy to fine tune etc.
     
  6. oasisvader

    oasisvader TPF Noob!

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    Thanks, I'll try both ways.
     
  7. Tolyk

    Tolyk TPF Noob!

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    I always just use the magic wand to select the colour I want then inverse my selection and use the channel mixer to make it B&W.. But the layer technique sounds nifty, I'll have to try it next time :)
     

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