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 following:
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 typing it?

Email your files (2 tiffs and a Word doc.) to as attachments.

Be sure to get off of the scanner machine so that the next person can get to work!

Pages maintained by
Prof. Ramón Arrowsmith

Pages last modified on Monday Oct 27 1997.