Adjust exposure
The scanning software automatically selects the optimal exposure settings for the output type applied to the image of a picture. However, if the original picture needs the brightness or contrast adjusted, you can use the Exposure Adjustment tool to increase or decrease:
■highlights (see page 71)
■shadows (see page 72)
■midtones (gamma) (see page 73)
■clipping of white and black pixels (see page 76)
■output levels for white and black pixels (see page 78)
The exposure settings you select will be applied to the final scan.
You can also use the Exposure Adjustment tool to:
■view the distribution of pixels (see page 74)
■read the RGB values of the pixels in the image (see page 74).
The Exposure Adjustment tool is active for the color and grayscale output types.
Using the Exposure Adjustment tool
1From the Tools menu, select Exposure Adjustment.
The Exposure Adjustment tool appears. (See page 32.)
2Refer to the following sections for using the
Exposure Adjustment tool:
■Changing highlights on page 71
■Changing shadows on page 72
■Changing midtones (brightness) on page 73
■Checking for clipping of pixels on page 76
■Setting pixel output levels on page 78
Applying the default exposure settings
■Click the Auto button in the Exposure Adjustment tool.
•The optimal exposure settings determined by the scanning software are applied to the
Exposure Adjustment tool.
•The results of the changes to the exposure settings can be seen in the preview area.
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➮HP PrecisionScan Pro User’s Guide | 70 |