Create jpeg2json.py

research/marco/jpeg2json.py

+#!/usr/bin/python
+# Copyright 2018 The TensorFlow Authors. All Rights Reserved.
+#
+# Licensed 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.
+# ==============================================================================
+"""jpeg2json.py: Converts a JPEG image into a json request to CloudML.
+
+Usage:
+python jpeg2json.py 002s_C6_ImagerDefaults_9.jpg > request.json
+
+See:
+https://cloud.google.com/ml-engine/docs/concepts/prediction-overview#online_prediction_input_data
+"""
+
+import base64
+import sys
+
+
+def to_json(data):
+  return '{"image_bytes":{"b64": "%s"}}' % base64.b64encode(data)
+
+
+if __name__ == '__main__':
+  file = open(sys.argv[1]) if len(sys.argv) > 1 else sys.stdin
+  print(to_json(file.read()))