IE9 and JPEG-XR: first impressions

Apr 5th, 2010

One of the new features in IE9 is the support for the JPEG-XR format, which reportedly has a better compression. Is it something we should dive into ASAP? JPEG-XR The wikipedia article is here. This format is developed and patented (red flag!) by Microsoft (yellow flag! 🙂 ), it replaces the suggested JPEG-2000 format and […]


Picassa’s progressive photo rendering

Mar 5th, 2009

If you’ve followed the series of image optimization posts on the YUIblog, you’ve probably seen the one about progressive JPEGs. In short, if a photo is over 10K it has a high probability of being smaller in file size when you use progressive JPEG. How do you turn a normal, baseline JPEG into a progressive […]