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DPChallenge Forums >> Current Challenge >> selective desaturation - basic challenge
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02/04/2007 07:04:27 PM · #1
i have a question regarding selective desaturation ... because i would like clarification regarding basic challenge rules.

*please don't thread jack this into a 'gee it's such an overused technique' ... just comment whether it's legal or not.

now, there's a shot in the shallow dof challenge that has this technique, i won't mention which shot, but it has been validated by the site council.

in another thread, generalE said:

Originally posted by GeneralE:

The technique described in the tutorial (to selectively desaturate a photo) can be used in Basic challenges, but it won't work for every picture/composition.
*parenthesis added by me.

but in a recent challenge this shot



was DQed for using selective desaturation.

is it legal, or does it depend on the technique used to achieve it????
02/04/2007 07:07:23 PM · #2
It depends on the technique use.

For basic editing the slective desat must be global... ie, desturating all color channels but one.

For advanced you can make a selection or use a layer mask to choose what you don't want to be color.

Edit to add:
I don't have any selective deast images to show for basic editing, but this one used a similar approach to selective color shift pink to yellow.



Edit again:
Now look what happens when I take the challenge entry and slide saturation of the Yellow channel in a hue/sat layer all the way to the left. this would be Basic legal.


Message edited by author 2007-02-04 19:13:45.
02/04/2007 07:08:10 PM · #3
I beleive it depends on the technique used to achieve it. if you can achieve it by using channel mixer , in normal mode and 100% with no maskign then it should be legal. (I THINK) I've never done it in basic but that's what I've always known to be true.
02/04/2007 07:19:00 PM · #4
Originally posted by super-dave:

...
is it legal, or does it depend on the technique used to achieve it????


It depends on the technique used to achieve it. There is a great tutorial by Konador on how to selectively desaturate within the Basic Editing ruleset here.
02/04/2007 07:25:49 PM · #5
Originally posted by L2:

It depends on the technique used to achieve it. There is a great tutorial by Konador on how to selectively desaturate within the Basic Editing ruleset here.


that's a great tutorial ... thanks for pointing it out.
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