Level adjustments
If the automatic adjustment resulted in an overly dark
image, you may click on the left (black) triangle and
drag it to the left until you reach the desired shadow
value. The same adjustments may be made to the high-
light and mid-tone values. Moving the white triangle
to the right will increase highlight density, and moving
the gray mid-tone triangle to the left will lighten the
mid-tones, moving the slider to the right will make the
mid-tones darker.
By dragging the Highlight, Shadow, and Mid-tone ad-
justment sliders, you may adjust the overall density of
an image. In this example, the shadow point was moved
to the left to allow more tone in the shadows, and the
highlight point was moved to the right to allow more
tone in the highlights.
Curve adjustments
The Curve adjustment dialog alters tones that fall
between the darkest and lightest points of the im-
age. Begin by adjusting the contrast slider to add or
reduce overall contrast. You may then make minor
adjustments to specific areas of the curve to tone the
image. When adjusting curves, make small changes and
evaluate the image as you go. Avoid creating curves
that move in too many directions as this will quickly
degrade your image data.
Start by sliding the Contrast slider to the right to add
contrast, and to the left to decrease contrast. The
curve may be fine-tuned by clicking and dragging spe-
cific points on the tone curve or by entering numeric
values. We suggest adjusting levels first, then use
curves to fine tune your images.
Global color correction
Using the Global Color Correction tool, you may alter
the overall color balance of an image using an interac-
tive hue wheel interface. Simply click and drag the
slider until the desired color balance is achieved.
The slider above the “OK” button allows you to modify
the intensity of the effect. If you wish to reset to
where you started, click on the reverse arrow button
on the lower left of the window.
Note:
If you are not using a properly calibrated display and
printer, these subjective adjustments may not repro-
duce faithfully on output. The Global Color Correction
tool is best for creative effects as opposed to color
accurate imaging.
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