Github user imatiach-msft commented on a diff in the pull request: https://github.com/apache/spark/pull/19439#discussion_r148178228 --- Diff: python/pyspark/ml/image.py --- @@ -0,0 +1,135 @@ +# +# Licensed to the Apache Software Foundation (ASF) under one or more +# contributor license agreements. See the NOTICE file distributed with +# this work for additional information regarding copyright ownership. +# The ASF licenses this file to You under the Apache License, Version 2.0 +# (the "License"); you may not use this file except in compliance with +# the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# + +from pyspark import SparkContext +from pyspark.sql.types import Row, _create_row, _parse_datatype_json_string +from pyspark.sql import DataFrame, SparkSession +import numpy as np + +undefinedImageType = "Undefined" + +imageFields = ["origin", "height", "width", "nChannels", "mode", "data"] + + +class _ImageSchema(object): + """ + Returns the image schema. + + :rtype StructType: a DataFrame with a single column of images + named "image" (nullable) + + .. versionadded:: 2.3.0 + """ + @property + def imageSchema(self): + ctx = SparkContext._active_spark_context + jschema = ctx._jvm.org.apache.spark.ml.image.ImageSchema.imageSchema() + return _parse_datatype_json_string(jschema.json()) + + """ + Returns the OpenCV type mapping supported + + :rtype dict: The OpenCV type mapping supported + + .. versionadded:: 2.3.0 + """ + @property + def ocvTypes(self): + ctx = SparkContext._active_spark_context + return ctx._jvm.org.apache.spark.ml.image.ImageSchema._ocvTypes() + +ImageSchema = _ImageSchema() --- End diff -- sure, you are welcome to add a cleanup PR to my branch, or you can just comment on what I should update, either way works
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