Microtek ScanMaker 4700 User Manual page 30

Preview window
means you can also zoom in by selecting the appropriate zoom level in the
Info window.
Pan tool
The Pan tool lets you scroll through a preview image, allowing you to
move parts of the image into view.
The Pan tool can be used for zoomed-in images (enlarged through the
Zoom tool), or images not completely displayed within the frame of the
preview window (for instance, if your preview image is 7 inches wide and
you resized the width of your overview/preview window to only 3 inches).
White / Black Point Picker tool
The Picker tools allow you to sample color from a particular area in an
image, and are also useful for designating shadow or highlight point.
The White Point Picker (
the preview image. Once you have picked the whitest point, excessive
white points are clipped off.
The Black Point Picker(
the 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 on the White/Black 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 on the Color Meter Options button located to the right of the
RGB values in the Info window.
file:///D|/sw56/adv_Preview_window_detail.htm (10 of 11) [8/15/03 3:59:29 PM]
) lets you define the whitest reference point in
) lets you define the darkest reference point in