Graphics Programs Reference
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Figure 5-3. Before and after comparison
Tutorial 16: Converting Color to Black and White (No. 2)
Using the Channel Mixer for converting color into black and white offers a greater degree of fine-tuning but
takes some time and practice. It's worth the effort, so that you can end up with superb color to black-and-white
conversions.
To convert this image, follow these steps:
Open the image ( Ch5_old church ) found in the Practice Images folder.
1.
2.
Duplicate the background layer and rename it Black and White Layer .
3.
Open the Channel Mixer dialog box. Check the Monochrome and Preserve
Luminosity options.
4.
Experiment with the settings until you get the result you want. I found, for my
liking, the following settings were about right: Red 190.9, Green 124.2, and
Blue -18.2 (Figure 5-4 ).
Figure 5-4. Fine-tuning color to black-and-white conversions with the Channel Mixer creates an image
with good contrast
 
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