Analysis of BSDL-based content adaptation for JPEG 2000 and HD Photo (JPEG XR)

JPEG 2000 and HD Photo (JPEG XR) enable the coding of images with several adaptivity provisions. These provisions allow taking into account the capabilities and constraints of diverse usage environments. However, the actual adaptation of coded bitstreams requires additional system complexity. This paper investigates how JPEG 2000 and HD Photo can be used in a standardized and XML-based framework for format-independent content adaptation in the compressed domain. An analysis is provided of the cost of offering adaptivity in the compressed domain, in terms of loss of coding efficiency, as well as in terms of the complexity of the format-agnostic adaptation system used. Our results show that editing-style, high-level operations on JPEG 2000 and HD Photo bitstreams can be executed with a feasible complexity. However, low-level operations in the compressed domain cannot be supported by the format-independent adaptation system used, due to the need for entropy coding and data reordering at macroblock level.