Microtek ScanWizard EZ Reference Manual page 54

White / Black Point Picker (White / Black Drop) tool
The Picker tools allow you to sample color from a particular area in an image,
and are useful for designating shadow or highlight point.
The White Point Picker (
preview image. Once you have picked the whitest point, excessive white points
are clipped off.
The Black Point Picker (
preview image. Once you have picked the darkest point, excessive black points
are clipped off.
With the Picker tools, you can determine the color values for any pixel in an
image. When you click the White/Black Point Picker and pan over a pixel, the
value for that pixel is displayed in the Info window , based on the sample size
selected in the Info window . Pixel value information is useful especially when you
are making color adjustments based on color value.
To change the sample size of the Picker tool:
1. Open the Info window by choosing the Show Info Window command in the
View menu.
2. Click the Color Meter Options button located to the right of the K values in
the Info window .
3. Choose your options.
Select the sample size options from the drop-down list. For instance, the 1
by 1 option will display the value of one pixel — the pixel in the middle of
the Color Output Meter. The 3 X 3 option reads the average value of a 3-
pixel by 3-pixel area.
To display color information for a pixel or an averaged area:
1. Click the Picker tool.
2. As you pass over a point in the image, observe the Info window — the K
values will be displayed in the Color Output Meter . These values are in tur n
based on the sample size you selected.
14 Microtek ScanWizard EZ - Professional Mode Reference Manual
) lets you define the whitest reference point in the
) lets you define the darkest reference point in the