image compression

image compression

Beyond JPEG

It's surprising that the venerable JPEG image compression standard, which dates back to 1986, is still the best we can do for photographic image compression. I can't remember when I encountered my first JPEG image, but JPEG didn't appear to enter practical use until

By Jeff Atwood ·
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image compression

A Comparison of JPEG Compression Levels and Recompression

Over the years, I've standardized on a JPEG compression factor of 15; I find that generally provides the best compromise between image quality and file size for most photographic images. Although I've done some ad-hoc testing that pointed to compression factor 15 as the sweet spot

By Jeff Atwood ·
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image compression

Screenshots: JPEG vs. GIF (and PNG)

It constantly amazes me how many times I encounter pages where screenshots are inappropriately stored as JPEGs. Not to single Mike Gunderloy out, but there's yet another example in his recent article on configuring an ASP.NET 2.0 website [http://developer.com/net/asp/article.php/3569166]

By Jeff Atwood ·
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