12 Facts About JPEG XS

JPEG XS is an interoperable, visually lossless, low-latency and lightweight image and video coding system that targets mezzanine compression within any AV application.

Today, the JPEG committee is still actively working on further improvements to XS, with the second edition scheduled for publication and initial efforts being launched towards a third edition.

JPEG XS offers a light-weight compression that visually preserves the quality compared to an uncompressed stream, at a low cost, targeted at compression ratios of up to 10:1.

The ability to push this step out of the camera is possible with JPEG XS and allows to use more advanced algorithms resulting in better quality in the end.

Part 2 builds on top of Part 1 to segregate different applications and uses of JPEG XS into reduced coding tool subsets with tighter constraints.

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Part 4 is a supporting standard of JPEG XS that provides conformance testing and buffer model verification.

JPEG XS committee started the standardization activity in 2016 with an open call for a high-performance, low complexity image coding standard.

Entropy coding: JPEG XS uses minimalistic Entropy encoding for the quantized data which proceeds in up to four passes over horizontal lines of quantized wavelet coefficients.

JPEG XS defines profiles that define subsets of coding tools which conforming decoders shall support, by limiting the permitted parameter values and allowed markers.

However, in the context of Bayer data JPEG XS internally interprets the Bayer pattern as an interleaved grid of four components.

Similarly to the concept of levels, JPEG XS defines sublevels to represent a lower bound on the required throughput that conforming decoders need to support in the encoded image domain.

JPEG XS contains patented technology which is made available for licensing via the JPEG XS Patent Portfolio License.