Apple Color 1.0 User Manual

Page 170

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170

Chapter 9

Primary In

You’ll probably leave the Limit Shadow Adjustments control turned on for most of your
projects, since this provides the most control over image contrast (and color, as you’ll
see later) in your programs.

You’ll find that contrast adjustments to the shadows are one of the most frequent
operations you’ll perform. Lowering the blacks so that at the darkest shadows touch 0
percent (seen in the bottom of the Waveform monitor’s graph or on the left of the
Histogram’s graph when either is set to Luma) deepens the shadows of your image.
Deeper shadows can enrich the image and accentuate detail that was being slightly
washed out before.

Lowering the blacks even more, called crushing the blacks because no pixel can be
darker then 0 percent, creates even higher-contrast looks. Crushing the blacks comes at
the expense of losing detail in the shadows, as larger portions of the image become
uniformly 0 percent black. This can be seen clearly in the black portion of the gradient
at the bottom of the image.

Note: Even if Limit Shadow Adjustments is turned on, you can still make lift
adjustments to the image using the Master Lift parameter in the Basic tab. See

Master Contrast Controls

” on page 204.

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