ISO/IEC 29170-2:2015/AMD1:2020 is a supporting amendment to the evaluation procedure for nearly lossless coding, adding parameters for evaluating nearly lossless coding of high dynamic range media and image sequences. It is relevant for teams reviewing image coding performance, documenting technical assessment methods, or aligning test procedures with a defined compliance reference. ISO/IEC 29170-2:2015/AMD1:2020 should be considered alongside the parent document, ISO/IEC 29170, when engineering, procurement, or laboratory workflows require a controlled evaluation basis for advanced image coding.

Overview of ISO/IEC 29170-2:2015/AMD1:2020

This amendment updates the evaluation procedure in Part 2 by introducing parameters intended for nearly lossless coding of high dynamic range media and image sequences. In practice, it supports more precise technical review of coding behavior where image fidelity and measurement consistency are important. Organizations involved in product evaluation, software validation, or documented evaluation of image compression methods may use ISO/IEC 29170-2:2015/AMD1:2020 as a technical document to guide structured testing workflows and maintain operational consistency across assessments.

Compliance applications of ISO/IEC 29170-2:2015/AMD1:2020

Typical compliance applications include laboratory evaluation, engineering documentation, and conformity assessment preparation for systems that handle high dynamic range imagery or image sequences. The amendment may be used by test teams establishing repeatable methods for technical validation, by procurement teams reviewing whether a coding solution aligns with a specified engineering specification, or by quality workflows that depend on documented evaluation criteria. ISO/IEC 29170-2:2015/AMD1:2020 can also support risk management where image quality, coding efficiency, and test traceability are part of the acceptance process.

Importance of compliance with ISO/IEC 29170-2:2015/AMD1:2020

Using ISO/IEC 29170-2:2015/AMD1:2020 helps keep nearly lossless coding evaluations consistent, which is important when results inform technical validation, interoperability review, or procurement decisions. A defined amendment reduces ambiguity in testing workflows and supports more reliable comparison between implementations, especially for high dynamic range content. For organizations preparing conformity assessment evidence, the document can improve repeatability and reduce review risk by providing a clearer basis for documented evaluation and quality assurance.

• Amendment to the parent reference ISO/IEC 29170, not a standalone evaluation standard
• Focuses on evaluation parameters for nearly lossless coding of high dynamic range media and image sequences
• Useful for structured testing workflows, technical assessment, and laboratory evaluation
• Supports conformity assessment, procurement review, and engineering documentation