Digital Images
What are they?
What are the different ways we can get digital images?
What are the copyright issues?
What is meant by file size, resolution, pixels, ppi, dpi?
What are the issues involved with printing a digital image compared to using it electronically (on the Web, in email, etc.)
What is the significance of file type?
What is the difference between a raster image and a bitmap image?
Homework:
Scan two separate sets of objects using your own scanner, the scanners in CLT, or the scanner in the Halsell 226 lab. Scan each one twice, once for the monitor (100 ppi) and once for printing (300 ppi). Save them in the 16scan folder in Homework folder.
Note: You can experiment with scanned objects. You may use more than one object on each scan but you must have two separate scans at two different resolutions. Take note of resolution, file size and file extension. You will show these in the next class.