ITU-T Recommendations

Recommendation ITU-T T.834 has been developed jointly with ISO/IEC JTC 1 SC 29/WG 1 in a collaborative team that is referred to as the Joint Photographic Experts Group (JPEG). It will be published as a technically-aligned twin text by both organizations (ITU-T and ISO/IEC).This Recommendation | International Standard specifies tests designed to verify whether codestreams, files, encoders, and decoders meet the normative requirements specified in Recommendation ITU-T T.832 | ISO/IEC 29199-2 (Information technology - JPEG XR image coding system - Image coding specification).- A codestream (or file) can be claimed to conform to Recommendation ITU-T T.832 | ISO/IEC 29199-2 if it meets the normative requirements for such codestreams (or file) specified in Recommendation ITU-T T.832 | ISO/IEC 29199-2.- An encoder can be claimed to have codestream (or file format) conformance to Recommendation ITU-T T.832 | ISO/IEC 29199-2 if the codestreams (or files) that it generates are conforming codestreams (or files).- A decoder can be claimed to conform to a specified subset of Recommendation ITU-T T.832 | ISO/IEC 29199-2 capabilities (such as a combination of "profile" and "level" capabilities) if it can properly decode all codestreams (or files) obeying the constraints specified in Recommendation ITU-T T.832 | ISO/IEC 29199-2 for the specified subset of capabilities.The tests specified in this Recommendation | International Standard provide methods for (non-exhaustive) testing of whether encoders and decoders meet these requirements.A set of data for use in such tests is provided as an electronic attachment to this Recommendation | International Standard and is an integral part thereof. This data set is also available for download from the ITU-T Test Signal Database at: http://itu.int/net/ITU-T/sigdb/speimage/Tseries-s.htm#T.834.