Channel Mid Tones
Info Palette
Make sure the Info Palette is visible on your screen. If it is not visible,
select Window, Info.
Adjusting the Image's Individual Channel Mid Tones
Go Layer, New
Adjustment Layer, Curves. Make sure
the Mode is set to Normal.
Make sure the value readout is set to Ink Percentage. Make sure the Preview
box is checked. Move the individual channel's mid tone point up to increase
complement color. Move the individual channel's mid tone point down to increase
the channel's own color. Use the Kenly 3•6•9 Rule. You can check
and uncheck the Preview box to see the effects of your mid tone adjustment.
Kenly 3•6•9 Rule
The Kenly 3•6•9 Rule gives guidance for adjustments in Curves.
Developed by Eric Kenly, the rule states the following:
An adjustment of 3% is a minor correction.
An adjustment of 6% is a moderate correction.
An adjustment of 9% is a major correction.
Any adjustment over 9% suggests that the image should be recaptured.
These percentages work in both plus or minus ranges. Adjustments of +6%
or -6% are both moderate.
Raise or lower the individual channel's mid tone point to correct the image's
color.
Click OK once you have set the individual channel's mid tone.
On the next page we will compare the Individual Channel's
Mid Tone adjusted image with the original.
Channel Mid Tones
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