Digital Image Compression Techniques
Digital Image Compression Techniques
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This paper describes "Just-In-Time Browsing" (JITB), amethod for image browsing (at modem-like speed) in whichimage data is transmitted and presented to the user progressively,in prioritized order, based on image content and userinteraction. Spatial resolution and grayscale or color fidelityis increased first for the portions of the image that areimmediately of most interest to the user. JITB is specificallygeared toward digitized microfilm and other similar documentimage collections, although it can also be used forother types of images. A series of common browsing tasksperformed by multiple users demonstrates that JITB comparesfavorably with two other methods that are currentlyused for browsing images on the Internet.