Operation Manual

44
IMAGE CORRECTION – HISTOGRAM
1. Click on , then click on the
tone in the control image that
should be scanned as the
brightest neutral white in your
image.
• The cursor will change to .
• The RGB brightness values of the selected tone
will be changed to 255.
2. Click on , then click on the
tone in the control image that
should be scanned as the
darkest neutral black in your
image.
• The cursor will change to .
• The RGB brightness values of the selected tone
will be changed to 0.
Setting the White, Black, and Gray Points
Properly setting an image’s white and black points will usually correct the colour cast and
midtone distribution.
• Changes are automatically applied to the preview image.
3. Click on , then click on the tone in the control
image that should be scanned as middle gray.
• The cursor will change to .
• The RGB brightness values of the selected tone will be changed to 127.
Setting the gray point
is not necessary for
most images.