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