Graphics Programs Reference
In-Depth Information
Desaturate
The second fast and easy option is desaturation. While desaturation results
in an image that appears to be grayscale, it is actually not. Desaturating
removes the color from each of the RGB channels by equalizing the color
pixel information to equivalent values. As this method does not actually
discard the color information, the resulting image remains in the RGB color
space. This method can be created as an adjustment layer, introducing many
additional advantages for the creative user. As with any adjustment layer, it
is non-destructive and of ers the many cool features adjustment layers have
to of er, such as variable opacity and masking. This technique, though more
advantageous, still tends to produce an image that needs more work. It will
be fairly limited in range of gray detail and does not produce deep blacks.
You will i nd that each conversion method will sometimes produce noticeably
dif erent results, and sometimes the dif erences will be hard to decipher.
There is more than one way to desaturate an image in Photoshop, believe it
or not.
I. Choose Image Menu Adjustments Desaturate
2. Choose Image Menu Adjustments Hue Saturation
3. Layer Menu New Adjustment Layer Hue Saturation
4. New CS4 Adjustments Panel Hue / Saturation
All these access methods will get you to the same dialog box. The
dif erence between them is that numbers 3 and 4 allow you the l exibility
of an adjustment layer. We recommend you follow a non-destructive
workl ow and choose an adjustment layer whenever possible!
5. Open the Hue/Saturation dialog box and slide the Saturation slider all the
way to the left.
 
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