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INCITS/ISO/IEC 23002-1:2006 (R2019)
Information technology - MPEG video technologies - Part 1: Accuracy requirements for implementation of integer-output 8x8 inverse discrete cosine transform
A number of image and video coding related standards (see Bibliography) include a requirement for decoders to implement an integer-output 8x8 inverse discrete cosine transform (IDCT) for the generation of inversetransformed sample differences with a nominal range from - 2B to (2B) - 1 for some integer number of bits B, where B is greater than or equal to 8. This part of ISO/IEC 23002 specifies conformance requirements for establishing sufficient accuracy in such an integer-output IDCT implementation. It is intended to be suitable for reference to establish partial or complete requirements for IDCT accuracy for conformance to other standards that require IDC
InterNational Committee for Information Technology Standards [incits]