DICOM PS3.3 2021b - Information Object Definitions

C.8.20.2.2 Lossy Image Compression and Lossy Image Compression Method (Current)
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##### C.8.20.2.2 Lossy Image Compression and Lossy Image Compression Method

If Lossy Image Compression (0028,2110) in any of the source images is "01", the value shall be "01" for the Segmentation Instance.

The process of segmentation itself is defined not to be lossy compression, even though it involves loss. If the Segmentation Instance is encoded using a lossy compression Transfer Syntax, then the value shall be set to "01".

### Note

It is not advisable to lossy compress a Segmentation SOP Instance. In particular, a binary segmentation should not be lossy compressed.

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DICOM PS3.3 2021b - Information Object Definitions