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Thread: Convert Color Photos to Grayscale

  1. #31
    Banned Vetinari is on a distinguished road
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    You probably don't like the results of Photoshop's default behaviour on grayscale conversion because it does a straight value map with no toning involved. One of the most powerful and overlooked tools in the software is the Gradient map.
    You can use it as a sort of super curves adjustment. Create a gray-scale map with Black on one end and white on the other, and you can tweak the midpoint, add additional positions and generally achieve any effect a plug-in offers you for toning. Changing the light or dark values will let you tone an image in sepias or blues or whatever you like. Then save as a CMYK and you're golden. Just remember that with ink coverage limits on press you won't get 100% K, so photoshop will back that up with process colours at, usually, C75 M68 Y67 K90, or thereabouts. You'll have to tweak for your conditions if you want otherwise.

    If you do it as an action with a user-adjustment stop inserted to tweak the gradiant along the way, you won't quite be batching but you'll be able to get the look you want without having to do more than adjust a slider per image.

  2. #32
    Banned tkliwynihilista is on a distinguished road
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    There are so many ways in which you can convert photos to BW (in Photoshop) that you should find which of them best suits you. Then use it in batch mode.

  3. #33
    Banned Varun is on a distinguished road
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    Quote Originally Posted by bziubek View Post
    For me the easiest way in Photoshop was always:

    adjustments->hue/saturation
    and setting the saturation to -100

    if you have a lot of files you can create a droplet with this setings
    this is the easiest way for sure

  4. #34
    Banned dazzul is on a distinguished road
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    Depending on the quailty of the images, i would recommend photoshop one by one to get the best possible results.


    I.e wedding photos

  5. #35
    Junior Member Saleron is on a distinguished road
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    I suggest Lightroom.

    If you prefer working with photoshop there´s a very good way to transform the pictures in grayscale. Go to:

    IMAGE > ADJUSTMENTS > CHANNEL MIXER

    Then select the option, Monochrome.

    You can then play with the red, blue and green percentage.

    For me, the best and quickly mode.

  6. #36
    Banned loekilo is on a distinguished road
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    I worked for a newspaper and had to convert large amount of photos for ads. I created a batch action in Photoshop that used the channel mixer set to grey gray scale. Gave very customizeable results

  7. #37
    Junior Member Luciole is on a distinguished road
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    Quote Originally Posted by Saleron View Post
    I suggest Lightroom.

    If you prefer working with photoshop there´s a very good way to transform the pictures in grayscale. Go to:

    IMAGE > ADJUSTMENTS > CHANNEL MIXER

    Then select the option, Monochrome.

    You can then play with the red, blue and green percentage.

    For me, the best and quickly mode.
    This is one good way to do it !

    But another great way is to go by CameraRaw on Photoshop by following these steps :

    - Open as -> Select the photo you want to modify -> clic on "Camera Raw" on the right -> go on the fourth icon -> clic "convert to greyscale" (or something like that, mine is in french)

    And after that you can play with all the Camera Raw options and even create a preset if you like your settings !
    And if you have Lightroom, as a few recommand here, it will be easier ! :)
    I think it's better than having thousands of plugins...

  8. #38
    Banned magic is on a distinguished road
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    My technique that i always use for my artwork it .

    Image / adjustment / desaturate .

  9. #39
    Junior Member Sydney is on a distinguished road
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    I always use Channel Mixer in Photoshop... it produces better results than just a simple BW conversion. Of course, if you are batch processing, some photos might look good with certain settings, and others won't. I feel like with BW photos, you really need to adjust on a case-by-case basis.

  10. #40
    Banned Abullock22 is on a distinguished road
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    +1 for photoshop and its batch function - so useful!!!

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