We propose a new method for parsing image files compressed with the baseline JPEG/JFIF standard, and re-encoding, without any image quality loss, its different components using more efficient compression algorithms. The new method is capable of achieving nearly 20% additional compression, with speeds of about 15 Mpixels/s for color images on a 3 GHz Intel Xeon processor. The advantage of using lossless compression is that it can be easily integrated to current systems and workflows, and in fact can be deployed in ways that are transparent to the user or the applications, while effectively saving storage and transmission bandwidth. These savings are particularly attractive for large scale imaging business, where the storage or bandwidth costs are a significant part of the business model.18 Pages External Posting Date: November 21, 2014 [Fulltext].Approved for External PublicationInternal Posting Date: October 21, 2007 [Fulltext]
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