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DPChallenge Forums >> Photography Discussion >> Best way to desaturate an image?
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Showing posts 1 - 9 of 9, (reverse)
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03/25/2008 05:32:35 PM · #1
I've read some tutorials but they never seem to make new images with great tonal range. What are your suggestions? Examples?
03/25/2008 05:36:03 PM · #2
I would start by looking in the learn menu here under tutorials.

//www.dpchallenge.com/tutorial.php?TUTORIAL_ID=43
03/25/2008 05:37:54 PM · #3
post up a pic - color and converted, then we'll convert it and tell you how we did it. Follow the steps of the one you like ;)
03/25/2008 05:39:00 PM · #4
Al lot depends on what software you are using for editing. Assuming Photoshop, then certainly one of the most versatile tools is the Channel Mixer. The fact that it is so versatile, however, also means that it's not the easiest method. The bottom line, though, is that every image requires a slightly different approach to achieve the best tonality possible in a B+W or toned image.
PS also introduced a "Black & White" tool with CS3 (may have been there in CS2 as well) which works well, but I still prefer Channel Mixer.
03/25/2008 05:44:34 PM · #5
i find i get some pretty pleasing results using dual hue/sat layers
03/25/2008 05:48:16 PM · #6
I love to use the 'Black & White' tool in CS3. Works great and gives me control over the different colours so I can slide each bar individually and watch the changes as I slide.
03/25/2008 05:58:55 PM · #7
my usual method consists of a hue/sat layer, with a gradient map layer above that on colour blending mode, then changing the hue/sat until i'm happy. Then flatten.
03/25/2008 06:02:17 PM · #8
Desaturate or convert to black and white? To convert to black and white I personally use the channel mixer and use the monochrome setting. You can then control the amount of red, green, and blue to have fine control of the results. More red tends to darken skies, blue lightens for instance. The total of all the values should equal 100% ideally however you can go above or below that for a lighter/darker image. I found a book that speaks entirely about black and white digital photography so it say a lot more than what I could write in a post. (Digital Black and white photography I think?).

edit: Mastering Black and White Digital Photography

One thing they mention is to take a sample of the color of the object you want to target for the conversion and use the amount of red green blue in the sample to act as a guide for the conversion. Of course just moving sliders around until the image looks cool works fine too :)

edit to add: In the channel mixer if you use a higher amount of red you'll find that it helps smooth out the texture of skin. If you go crazy with green your model may end up hating you because it darkens the skin and emphasizes blemishes etc. For some people it works though so its not something to rule out entirely though.

Message edited by author 2008-03-25 18:11:02.
03/25/2008 06:37:48 PM · #9
Personally I use Bibble with the Andy Pro plugin. Just amazing.
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