Konica Minolta IV instruction manual Setting the white and black-point values

Setting the white and black-point values

The white and black-point values are set to 255 and 0 for each RGB level. Changing these values allow the calibration of an image with no true white or black.

Double-click on either the white-point or black-point button to activate the point-value-setting dialog box.

Enter the new white-point or black-point values. Click

OK.

With the point-value-setting dialog box open, the mouse pointer can be used to measure the color of any point on the displayed image. The RGB display shows the original values for the image on the left and the current values for the image on the right.

Calibrate the image as described in the white, black, and gray point corrections section.

Tracking image corrections - Snapshot button

Image corrections can be stored temporarily as a thumbnail next to the displayed image. Simply click the snapshot button on the tool bar to create a thumbnail with the current image corrections.

To return to a previous image correction, click on the corresponding snapshot thumbnail. The thumbnail image will replace the displayed image. The number of snapshots that can be made is only limited by the computer memory. To delete a snapshot, click on the thumbnail and press the keyboard delete key.

Snapshot display area

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