jpeg compression ratio

Question

Is there a table that gives the compression ratio of a jpeg image at a given quality?

Something like the table given on the wiki page, except for more values.

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Answer 1

Browsing Wikipedia a little more led to http://en.wikipedia.org/wiki/Standard_test_image and Kodak's test suite. Although they're a little outdated and small, you could make your own table.

Alternately, pictures of stars and galaxies from NASA.gov should stress the compressor well, being large, almost exclusively composed of tiny speckled detail, and distributed in uncompressed format. In other words, HUBBLE GOTCHOO!