The Joint Collaborative Team on Video Coding (jct-vc) of itu-t wp3/16 and iso/iec jtc 1/ sc 29/ wg 11 held its tenth meeting during 11-20 July 2012 at the City Conference Centre (ccc), a k. a

JCTVC-J0483 AHG9: Mental cross-check of JCTVC-J0064 [K.Kazui (Fujitsu)] [late]
JCTVC-J0149 Signalling of Luminance Dynamic Range in Tone mapping information SEI [S. Hattori, T. Suzuki (Sony)]

This document describes a contribution on a proposal to signal the luminance dynamic range of the images in the tone mapping information SEI message. With the improvements of capturing and displaying images in wider dynamic range, the desire to deliver such images is anticipated to increase. In order for displays to support images in various dynamic ranges, it is necessary for displays to adjust the dynamic range of the images specifically to best suit the range of the display according to its capability. The proposed information is useful in such remapping process of dynamic ranges. The contribution proposes to signal the camera setting, settings used at image production process and digital code of output image from production process in which white and black level is assigned.

Request to put additional capture parameters (e.g. exposure, sensitivity, black level, white level)

Are all of these data changing over time?

Overlap with alternative definitions of same metadata, e.g. EXIF, 3GPP, WG1

Question whether SEI message is the right place. Better at systems layer? (some similar work performed in MPEG systems).

There would be more that would be interesting, e.g. white balance.

Several experts express that this is useful, this could be a good starting point, but further study necessary.

Decision: Adopt

Install AHG on SEI messages?