Computer Graphics Survey

Scanning an Image

Using DeskScan II on MacOS 8 Computers

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Before beginning the project

If you are working in the ACG Lab click to read these important notes before you start the tutorial. This section of the directions contains information that pertains specifically to the way the ACG Lab operates. It may not apply if you work on the project elsewhere.


Tutorial Description

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Setting Up for Work

  1. The scanners can only be used from the computers directly attached to them (they are not available through the network). Bring your Zip disk along and prepare the scanner if not already set-up.
  2. Place your image face-down on the glass plate of the scanner, with the upper-right image corner near the red document set mark.
  3. Launch the scanner software, DeskScan II, located on the hard drive, in the Scanner folder
    the icon of the DeskScan application

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Preview the Image

  1. Click the "Preview" button at the bottom of the screen. DeskScan will activate the scanner, display and select a reduced view of your image, and automatically adjust exposure and select image type
  2. If necessary, change the image type, by clicking and holding on the popup menu next to "Type" (upper-left of the "DeskScan II" window); scroll to the desired image type and release.
    the Type pop-up menu
  3. If necessary, change the print path. Click and hold on the popup menu next to "Path" (upper-left of the "DeskScan II" window); scroll to the desired print path and release. The chosen path, in combination with the image type, will affect both the resolution (amount of detail) of the image, and the brightness/contrast adjustments (and, if applicable, the color balance).
    the Path pop-up menu
  4. If necessary, adjust the selected area in the preview window:
    the preview selected
  5. Scale the image to the appropriate size in pixels:

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Final Scan

  1. Click the 'Final' button to scan your image with the desired settings.
  2. To see the image you scanned, drag its icon and drop it on the icon of the program Photoshop.

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Notes

Color-space models

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Color on computers

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Raster File Formats

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Information specific to the ACG Lab

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This document originally at <http://acg2.fullcoll.edu/FACULTY/CORSI/LEARN/OVERVIEW/OV050MAC/INDEX.HTM>
Copyright 1996-99 by Sandro Corsi.
Last modified 15 SEP 1999.
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