https://htj2k.com

HTJ2K – A blazing-fast JPEG 2000HTJ2K – A blazing-fast JPEG 2000 Skip to main content Hit enter to search or ESC to close Search Close Search HTJ2K Menu Home JPH File Format Learn White Paper Specifications Technical Forum Develop Open Source A blazing-fast JPEG 2000: what is HTJ2K? High throughput JPEG 2000 (HTJ2K) is a new international standard, jointly published by the International Telecommunications Union (ITU) and International Standards Organization (ISO) as ITU-T Rec  T.814 | IS 15444-15. The standard is royalty free and brings lightning fast image compression and decompression. The standard addresses the one issue encountered in the deployment of JPEG 2000 image compression technology in a diversity of applications – namely the computational throughput and energy consumption of the core algorithm. HTJ2K comprehensively addresses this difficulty, potentially opening up many new markets for JPEG 2000 and protecting existing markets from the threat of less functional technology that offers only reduced computation. HTJ2K versus ye olde JPEG How does HTJ2K compare to the venerable JPEG (Rec. ITU-T T.81 | ISO/IEC 10918), which remains in wide use for How does HTJ2K compare to the venerable JPEG (Rec. ITU-T T.81 | ISO/IEC 10918), which remains in wide use for photographic applications? JPEG 2000 has, in the past, failed to gain traction in applications covered by JPEG in part because of its lower relative encoding and decoding throughput performance. This is rectified by the HT block coder, which increases throughput by an order of magnitude over that of traditional JPEG 2000. As illustrated in the following figure, single-threaded HTJ2K coding and decoding speeds (in orange) are in fact slightly higher compared to JPEG (in blue). In contrast, HTJ2K offers more opportunities for parallelization that JPEG and its advantage grows tremendously when multithreading is used (in red). [vc_single_image image=”141″ img_size=”full” alignment=”center”] Furthermore, and as expected, HTJ2K (in orange) offers better image quality scores than JPEG (in blue) at a given bitrate, as illustrated below. SSIM is used here as a proxy for image quality. The results were generated over the UHD ARRI Alexa Drums image sequence. Turbo JPEG was used to generate the JPEG results and Kakadu SDK for the HTJ2K results. [vc_single_image image=”142″ img_size=”full”] Close Menu Home JPH File Format Learn White Paper Specifications Technical Forum Develop Open Sourceenusen-UShttps://htj2k.com

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