GLG490 Assignment #7
Due by Friday, October 31 at the beginning of class.
Scanning and manipulating rasters
This assignment will test your ability to use the scanner and to
manipulate a raster image, as well as to OCR some text.
Scanning a picture
1) Choose a photograph or other color figure of your choice. Scan it
using Deskscan. Save as a tiff file. Open up Adobe Photoshop and do the
a) Copy a little piece of the original and paste it into a new file.
b) For both files, adjust the levels so that the color balance looks good.
c) For both files, change the image size so that it is 6 inches wide (by whatever is
proportionally correct) and is 72 dpi in resolution.
d) For both files, save as a tiff.
Optical Character Recognition
1) Select a page of references from a textbook or a journal article.
Using Omnipage professional, scan and OCR the page of references. Copy the
result and paste it into a MS Word document. Clean up the result in
Word. How good was the scan? Was it worth the time to scan it versus
Email your files (2 tiffs and a Word doc.) to
firstname.lastname@example.org as attachments.
Be sure to get off of the scanner machine so that the next person can get
Pages maintained by
Prof. Ramón Arrowsmith
Pages last modified on Monday Oct 27 1997.