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Status Bar - The status bar (figure 3) contains important information about the
settings in the TWAIN window.
Scan Area Coordinates shows the position of the Scan Area Border in terms of X
and Y coordinates.
Scan Area Dimension shows the exact width and height of the Scan Area Border.
Image Size displays the amount of memory your image will use. The larger the image
size, the longer it takes to actually scan the image. Larger images, due to their
memory requirements, will also take longer for your image-editing applications
to process when making any corrections.
Tips for reducing the file size of an image:
Change the scan mode – Color mode collects the most amount of
Attention
information and therefore requires more memory than grayscale or black
and white.
Reduce the resolution –See Scanning Tips later in this chapter for detailed
information about selecting the proper amount of resolution.
Reduce the scan area - When scanning images that are smaller than a full
page, make sure you prescan the image and adjust the scan area borders in
the Prescan Area window.
Some file formats such as GIF and JPEG can compress image data, greatly
reducing the amount of space an image takes up on your hard drive.
Units shows the measurement units used in the Prescan Area. The measurement units
can be changed by clicking on the Advanced button.
Version displays the version of the TWAIN program you are using.
Advanced Settings Window
The Advanced Settings window (figure 4) has 4 tabs running along the top -
Preferences, Histogram, Tone Map and Gamma, all of which will be explained in
detail below. Click on one of the tabs to display settings. For additional instructions
click on the Help button at the bottom-right of the window to view the on-line
TWAIN help.
Figure 3. Status Bar
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