HD Photo: a new image coding technology for digital photography
This paper introduces the HD Photo coding technology developed by Microsoft Corporation. The storage format for this
technology is now under consideration in the ITU-T/ISO/IEC JPEG committee as a candidate for standardization under
the name JPEG XR. The technology was developed to address end-to-end digital imaging application requirements,
particularly including the needs of digital photography. HD Photo includes features such as good compression capability,
high dynamic range support, high image quality capability, lossless coding support, full-format 4:4:4 color sampling,
simple thumbnail extraction, embedded bitstream scalability of resolution and fidelity, and degradation-free compressed domain
support of key manipulations such as cropping, flipping and rotation. HD Photo has been designed to optimize
image quality and compression efficiency while also enabling low-complexity encoding and decoding implementations.
To ensure low complexity for implementations, the design features have been incorporated in a way that not only
minimizes the computational requirements of the individual components (including consideration of such aspects as
memory footprint, cache effects, and parallelization opportunities) but results in a self-consistent design that maximizes
the commonality of functional processing components.
This paper was published in SPIE Proceedings Vol. 6696