Github user BryanCutler commented on a diff in the pull request:
https://github.com/apache/spark/pull/20475#discussion_r165707676
--- Diff: python/pyspark/ml/image.py ---
@@ -75,6 +76,23 @@ def ocvTypes(self):
self._ocvTypes =
dict(ctx._jvm.org.apache.spark.ml.image.ImageSchema.javaOcvTypes())
return self._ocvTypes
+ @property
+ def columnSchema(self):
+ """
+ Returns the schema for the image column.
+
+ :return: a :class:`StructType` for image column,
+ ``struct<origin:string, height:int, width:int, nChannels:int,
mode:int, data:binary>``.
+
+ .. versionadded:: 2.3.0
--- End diff --
Since this came out of the 2.3 ml QA and it's mostly an improvement to the
python API, I think maybe 2.4 is best. But it is a new API do maybe it's ok to
include in 2.3..
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