03/18/2003
15-462 Graphics I
37
Image Sizes
•1024*1024
at 24 bits uses 3 MB
•Encyclopedia
Britannica at 300 pixels/inch and 1 bit/pixes requires 25 gigabytes (25K
pages)
•90 minute movie at 640x480, 24 bits per pixels, 24 frames per
second requires 120 gigabytes
•Applications: HDTV, DVD, satellite
image transmission,
medial image processing, fax, ...