Scanning documents in the Mathematical Sciences Building labs

• Some instructions for scanning and posting documents on the web which you may wish to use for posting assignments, notes, or solutions.
• See a collection of scanned photographs in different formats with different resolutions (dots per inch).
• Here is a basic description of image formats with links to more informative sites.
• The class web site for Math 682, Summer 2002 has Matlab programs for manipulating images

Here are basic directions for scanning in Room 401:

• The scanner is connected to the Macintosh near the windows.
• To start the scanner software, either press the scanner button on the front of the scanner (far left) or double click the desktop folder Scanner Software, then launch HP Precision Scanpro.
• Place your original on the scanner glass, pushed away from you and to the right.
• Scanpro will open a blank window.  At the top left of this window is a scanner icon.  Click that to have the scanner preview your document.
• Typically your original will not fill the whole window; most of the window will be white.  To select the part you're interested in, click on it once.  Then drag the edges to narrow in on what you want scanned.  This will reduce the size of the files you create.
• At the top of that window, select the number of dots per inch.  More dots per inch means more detail in the image, a larger image, and much larger file sizes.  See the collection above for an illustration.
• Pull down the Scan menu, select Save As, choose an image format (jpg is good for photographs), and specify a filename.  I recommend putting an extension such as .jpg or .png.  The Macintosh doesn't care, but PC's and UNIX machines use the extension to identify the format in which the image is saved.
• After you click OK, the scanner makes a detailed scan of the document and saves the image file.
• If you have additional originals that are the same size as the first, you can change originals and again pull down Scan, Save As, etc. to make a detailed scan of the remaining originals, without making a preview and specifying the scan area.

Here are basic directions for scanning in the Scientific Computing Lab:

1. There is one computer with a scanner hooked up to it, right in front of the lab assistant's desk.
2. On that computer, pull down the Apple menu, Applications, Adobe Photoshop.
3. Place your document on the scanner, face down, pushed to the near left hand corner.
4. In Photoshop, select File, Import, ScanGear (which must be the name of the scanner in some sense).
5. Now you can choose Preview, which, I think, makes a quick scan, or Scan, which makes a more complete one.

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