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03/25/2006 10:38:49 AM · #1 |
| Ok.. i knew how do this with my old photoshop but now whene i got the CS2 i just cant remember how to do it. What i am talking about is desaturating a photo and then undesaturate some area.. like making blue eyes be the only colour in a photo.. can some one please tell me how to do this :) |
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03/25/2006 10:40:43 AM · #2 |
Originally posted by Krisby:
Ok.. i knew how do this with my old photoshop but now whene i got the CS2 i just cant remember how to do it. What i am talking about is desaturating a photo and then undesaturate some area.. like making blue eyes be the only colour in a photo.. can some one please tell me how to do this :) |
Try the history brush |
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03/25/2006 10:41:49 AM · #3 |
There is a Selective Desat Tutorial which I found really helpful.
Hope it helps
Mark |
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03/25/2006 10:42:08 AM · #4 |
I usually place the B&W image in a layer on top of the colo layer and then use the eraser tool to erase the areas I want color from the B&W layer.
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03/25/2006 10:50:14 AM · #5 |
duplicate the BG layer twice. convert the top most to BW with the channel mixer - or howver you like. create a layer mask on the BW layer and fill the mask with pure white. then switch to pure black and paint black over the areas you want revealed from the lower layer in color. the bottom most layer is merely incase you majorly screw up so you don't lose the original image.
EDIT to add using a mask gives you more flexibility in controlling the painting. if you over paint switch back to white, and touch up.
/EDIT
that's how i would do it.
or use hue/saturation and make the desaturation the colors you don't want. this is sloppier technique as blue also likely has yellow and magenta in it. so the actual original colors might be skewed.
Message edited by author 2006-03-25 10:51:58.
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03/25/2006 12:38:20 PM · #6 |
There is nothing new in PS CS that makes selective desaturation different. Several methods have been provided here already and there are others.
My suggestion to you is using "non-destructive" methods as opposed to "destructive" methods whenever possible.
The DPC tutorial covers a "traditional" desaturation method using Hue/Saturation. The error in that tutorial is that it fails to tell you to do it in an adjustment layer. Adjustment layers are non-destructive. Its way is "destructive". Instead of chosing "Image->Adjustments->Hue/Saturation..." as suggested in the tutorial you want to do "Layer->New Adjustment Layer->Hue/Saturation...". Everything else works the same. This way does it in a separate non-destructive layer that you can easily adjust later if needed.
I would further recommend that you do not use the history brush and/or eraser tool as others suggested if the same thing can be accomplished with a mask. Those tools are destructive, but a mask is not. Masks just affect the visibility of a layer, but not its content so can also be easily adjusted later.
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