Fix mistakes in segmentation compression methods docs

ImagingDataCommons · Jun 14, 2023 · a3f2893 · a3f2893
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diff --git a/docs/seg.rst b/docs/seg.rst
@@ -590,14 +590,11 @@ retrieving individual frames from segmentation images in which each frame
 size is not divisible by 8 becomes problematic. No further compression may be
 applied to frames of ``"BINARY"`` segmentation images.
 
-Pixels in ``"FRACTIONAL"`` segmentation images may be compressed in the same
-manner as other DICOM images. However, since lossy compression methods such as
-standard JPEG are not designed to work with these sorts of images, we strongly
-advise using only lossless compression methods with Segmentation images.
-Currently *highdicom* supports the following compressed transfer syntaxes when
-creating ``"FRACTIONAL"`` segmentation images: ``"RLELossless"`` (lossless),
-``"JPEG2000Lossless"`` (lossless), ``"JPEGBaseline8Bit"`` (lossy, not
-recommended).
+Pixels in ``"FRACTIONAL"`` segmentation images may be compressed using one of
+the lossless compression methods available within DICOM. Currently *highdicom*
+supports the following compressed transfer syntaxes when creating
+``"FRACTIONAL"`` segmentation images: ``"RLELossless"``,
+``"JPEG2000Lossless"``, and ``"JPEGLSLossless"``.
 
 Note that there may be advantages to using ``"FRACTIONAL"`` segmentations to
 store segmentation images that are binary in nature (i.e. only taking values 0

diff --git a/src/highdicom/seg/sop.py b/src/highdicom/seg/sop.py
@@ -1009,8 +1009,9 @@ def __init__(
             data elements. The following lossless compressed transfer syntaxes
             are supported for encapsulated format encoding in case of
             FRACTIONAL segmentation type:
-            RLE Lossless (``"1.2.840.10008.1.2.5"``) and
-            JPEG 2000 Lossless (``"1.2.840.10008.1.2.4.90"``).
+            RLE Lossless (``"1.2.840.10008.1.2.5"``),
+            JPEG 2000 Lossless (``"1.2.840.10008.1.2.4.90"``), and
+            JPEG LS Lossless (``"1.2.840.10008.1.2.4.00"``).
         pixel_measures: Union[highdicom.PixelMeasures, None], optional
             Physical spacing of image pixels in `pixel_array`.
             If ``None``, it will be assumed that the segmentation image has the