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In Reply to: RE: B&W Effort posted by dancingseamonkey on June 20, 2017 at 05:14:54:
In addition to what BH did, photoshop has desaturate. I think that simply removes all color information.
But more detail can be had using the ' B&W' dialogue.
In that, you have color sliders which allow you to remove colors selectively. And not just RGB, but also Cyans and Magentas. In addition a 'tint' can be applied to do ANYTHING you desire, including various density of SEPIA and such. Or mimic other metals besides a Silver process.
Using that dialogue you might be able to mimic either Panchromatic or Orthochromatic film. Or create entirely novel looks and effects.
I think there is a 3rd way, turning off color channels but I can't remember offhand how to do that one.
What is more interesting to ME is going the OTHER way.
Take 3 photos.
One using a RED filter
One Green
One Blue
Stack 'em up and vary the density for color balance. NASA used this technique to get color images from places with NO reference to adjust to.
Too much is never enough
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- RE: B&W Effort - pictureguy 11:27:51 06/20/17 (0)
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