Using The Tone Curve - Minolta Viewer Instruction Manual

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DVANCED IMAGE PROCESSING

Using the tone curve

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Click the arrow next to the channel box to select the channel
from the drop-down menu.
• To make adjustments to the color balance of the image,
select the appropriate color channel. To adjust the contrast
or brightness of the image without affecting the color, select
the RGB channel.
• The tone curves can be displayed with keyboard shortcuts.
While holding the control key (Windows) or command key
(Macintosh), press "1" to display the red channel, "2" to
display the green channel, "3" to display the blue channel,
or "0" (zero) to display the RGB channel.
Place the mouse pointer over the tone curve. Click and drag
the curve.
• Each time the tone curve is clicked, a new node will be
attached to the curve. The nodes can be moved by clicking
and dragging.
• The input and output levels of the node are displayed as it
is moved. The input level (horizontal axis) refers to the
original image, and the output level (vertical axis) refers to
the correction applied to the image.
• Any corrections made on the tone curve are immediately
applied to the displayed image.
• By placing the mouse pointer on the displayed image, the
grey or color level of that point will be indicated on the tone
curve by a white circle.
• The reset button cancels all corrections in all channels.