| DICOM PS3.5 2024d - Data Structures and Encoding |
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The International Standards Organization ISO/IEC has developed an International Standard, [ISO/IEC 18181-1] (JPEG XL) for coding of bi-level, continuous-tone grayscale, or continuous-tone color, or multichannel digital images (see Annex F for further details).
A DICOM Transfer Syntax for JPEG XL Image Compression shall be identified by a UID value, appropriate to its JPEG XL coding process.
Three Transfer Syntaxes are specified for JPEG XL:
A Transfer Syntax with a UID of "1.2.840.10008.1.2.4.110", which specifies the use of the lossless mode of JPEG XL.
A Transfer Syntax with a UID of "1.2.840.10008.1.2.4.111", which specifies the use of reversible JPEG transcoding.
A Transfer Syntax with a UID of "1.2.840.10008.1.2.4.112", which specifies the use of any compression method in JPEG XL, including the lossy, lossless or JPEG recompression mode of JPEG XL.
For JPEG XL encoding, each frame shall be encoded separately as a single fragment.
A JPEG Baseline image losslessly re-coded to JPEG XL is not a derived image unless the original JPEG image was a derived image. It is permitted, but not required to add the Derivation Code Sequence (0008,9215) to capture the re-coding algorithm.
| DICOM PS3.5 2024d - Data Structures and Encoding |
|---|