Alain Chesnais
Tim Beck
ABSTRACT
One of the most labor-intensive tasks in the development of web sites is the creation of derivative images for display of a visual element at multiple sizes or in multiple styles. For instance, a typical online catalog will have at least three different visual representations for each product sold: one thumbnail sized image for visual browsing, one mid sized image for viewing a product description and one large sized image for viewing product detail. The approach outlined in this presentation is to enable the web server to actively generate any derivative image from a high-resolution base image. Derivative images are then cached on the server to speed delivery of subsequent requests for the same derived content.
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