This amendment adds a multi-component transformation resolution level flag to JPIP. This is useful for remote browsing of an image that was compressed with a wavelet based multiple-component transform at a sub-resolution in the component direction.
As of the approval of this Amendment, ISO/IEC JTC 1/SC 29 was also preparing ITU-T Rec. T.808 (2005) | ISO/IEC 15444-9:2005 Amd.2, which had not progressed to FDAM stage; therefore, it could not be considered for AAP. Since this Amendment on "JPIP extensions" to ITU-T Rec. T.808 | ISO/IEC 15444-9 was balloted by ISO/IEC JTC 1/SC 29 as PDAM 3, FPDAM 3, FDAM 3, it was kept as for the ITU-T approval process purposes also numbered as Amendment 3, even though Amendment 2 was neither approved or yet available for consideration under AAP. After approval, in order to keep the temporal numbering approach of the approved Recommendations | International Standards, this Amendment was renumbered as Amendment 2 for publication purpose.