Editing RAW Images
W-40
Tone Curve
A tone curve shows the brightness and color saturation for the original image (input) and the
adjusted image (output) in the form of a line graph. You can use the tone curve to adjust the
image brightness and color saturation values that were set by the camera automatically when
the shot was taken.
The tone curve adjustment options include [RGB], which adjusts the input and output for the
entire image in a single operation, as well as the [Rch], [Gch] and [Bch] settings that adjust
each color individually. You can use the [Tone curve settings] list box to switch between the
different channels as you make your adjustments.
The horizontal axis shows the brightness and color saturation for the unadjusted (input) image,
with the left-hand end indicating shadow (darker areas of the image) and the right-hand end
indicating highlights (brighter areas of the image).
The vertical axis shows the brightness and color saturation for the adjusted (output) image, with
the lower end indicating shadow and the upper end indicating highlights.
You can adjust the contrast of an image.
Select a setting from the list box.
The selected setting is specified in
the RAW adjustment tool palette.
Selecting the Contrast
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