White, Black, And Gray-Point Corrections - Minolta Viewer Instruction Manual

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DVANCED IMAGE PROCESSING

White, black, and gray-point corrections

Advanced image corrections can be made by specifying a white, black, and gray point within the
image. Locating an appropriate neutral area within the image is critical to correctly calibrate the soft-
ware. When the dropper tool is selected, the RGB display is active and can be used to evaluate the
image area. All changes are immediately reflected in the displayed image.
Click the white-point button.
• The mouse pointer changes to the white
dropper tool.
Click on the brightest neutral area of the
image to define it as the white point.
• The values of the image will be adjusted
based on the selected point. The default
level for the white point is 255 for each
RGB channel.
Click the black-point button.
Click on the darkest neutral area of the image
to define it as the black point.
• The values of the image will be adjusted
based on the selected point. The default
level for the black point is 0 for each RGB
channel.
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