An extension of JPEG XT with JPEG2000
Hiroyuki Kobayashi, Hitoshi Kiya · 2017
A new two-layer coding scheme based on JPEG 2000 is proposed for HDR images, where coded data consist of two layers: the base-layer for tone mapped LDR version of an HDR image and the enhancement layer. The paper considers the coding scheme as an extended version of the JPEG XT Profile A. JPEG coders used in JPEG XT are replaced with JPEG 2000 ones. Compared to normative JPEG XT coding, the proposed scheme has the following properties, (1) high compression efficiency, (2) over-eight-bits LDR images, (3) flexible bitrate control, etc. We demonstrate the effectiveness of the proposed scheme by experimental results.