coach v0.8.0

debug_utils.py

@@ -0,0 +1,50 @@
+#
+# Copyright (c) 2017 Intel Corporation 
+#
+# 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.
+#
+
+import matplotlib.pyplot as plt
+import numpy as np
+
+
+def show_observation_stack(stack, channels_last=False):
+    if isinstance(stack, list):  # is list
+        stack_size = len(stack)
+    elif len(stack.shape) == 3:
+        stack_size = stack.shape[0]  # is numpy array
+    elif len(stack.shape) == 4:
+        stack_size = stack.shape[1]  # ignore batch dimension
+        stack = stack[0]
+    else:
+        assert False, ""
+
+    if channels_last:
+        stack = np.transpose(stack, (2, 0, 1))
+        stack_size = stack.shape[0]
+
+    for i in range(stack_size):
+        plt.subplot(1, stack_size, i + 1)
+        plt.imshow(stack[i], cmap='gray')
+
+    plt.show()
+
+
+def show_diff_between_two_observations(observation1, observation2):
+    plt.imshow(observation1 - observation2, cmap='gray')
+    plt.show()
+
+
+def plot_grayscale_observation(observation):
+    plt.imshow(observation, cmap='gray')
+    plt.show()