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B&W Conversion

Kevin Bjorke

New member
It's probably old news to some, but I've really been digging a change to my Photoshop color->B&W methodology. I already wrote about it here in greater detail, the core of it is borrowed from J-P Caponigro.
bwConvIz.jpg
The jist -- I used to just use the channel mixer set to monochrome and would manually balance R,G,& B. Caponigro pointed out that you can just use the mixer to use only ONE channel and then spin the color space around using a Hue/Saturation layer underneath it. Works fabulously.

Okay, call me easily amused.
 

Asher Kelman

OPF Owner/Editor-in-Chief
I use that and it's very versatile. I also like to take the luminance channel of a LAB copy and blend part of that back to taste.

Asher
 

Kevin Bjorke

New member
What do you gain from the Lab channel, were do you insert it? below the hue/sat

Lab 'L' is a fixed-formula conversion, identical to what you should get from simply converting to 'grayscale'

0.299R + 0.587G + 0.114B

iirc

which in channel mixer slider-speak would be 30/59/11
 

Asher Kelman

OPF Owner/Editor-in-Chief
I use it for a partial local blend for touch up. However, your formula is good to use too. Thanks for the lesson!


Asher
 
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