G R E Y S C A L E   C O N V E R S I O N

 

 

The most powerful way to create grey-scale pictures is to
preview the individual channels by splitting them into separate files
and then combining the most interesting looking ones
using either the Channel Mixer Strategy or the Layer Strategy

Below is an example of one picture file that has been split and then recombined in different ways to produce various results.

note: this picture as selected because it has strong red and geen elements,
        either of which can be pushed toward the light end or dark end
        of the greyscale spectrum, creating dramatically different pictures
        from the same source file.

 
 
PREVIEW
       
  Examine the content of all possible channels to see how the tonal range varies.  
split RGB channels   use: channels palette> split channels  
rgb
red
green
blue
 
open a picture file    
split the channels into separate RGB files    
  or at least examine them separately to find the best  
         
split CMYK channels   use: channels palette> split channels  
cmyk
cyan
magenta
yellow
black
 
open a copy of the same file    
convert to CMYK mode    
split the channels into separate CMYK files    
  or at least examine them separately to find the best  
         
split LAB channels   use: channels palette> split channels  
lab
lightness
a
b
 
 
open another copy of the same file    
convert to LAB mode    
split the channels into separate LAB files    
  or at least examine them separately to find the best  
         
         
COMBINE        
Channel Strategy Use the Channel Mixer to combine the most interesting or dynamic channels available.  
 
create a new picture    
  use RGB mode if you wish to mix 3 channels  
  use CMYK mode if you wish to mix 4 channels  
copy channels from individual split-channel picture
   
    into channels of the new picture    
add a Channel Mixer adjustment layer    
click monochrome [on] to send the output to the gray channel    
adjust the balance of these channels    
         
 
  rgb     cmyk
         
Layer Strategy        
  Use multiple Layers to blend the most interesting or dynamic channels available.  
 
create a new picture    
copy desirable layers    
  from the individual pictures into layers of a new picture  
adjust the balance of these layers    
  with the opacity slider in the layers palette  
         
2
3
4
         
RESULTS        
  A wide range of results can be achieved, some more realiastic than others,
but as you can see the branch ranges from black to white, as does the background.
 
     
  Rather than tell you how these were done – experiment for yourself.