# Copyright 2016 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. # ============================================================================== """Tests for slim_nets.inception_v1.""" from __future__ import absolute_import from __future__ import division from __future__ import print_function import numpy as np import tensorflow as tf from nets import inception slim = tf.contrib.slim class InceptionV1Test(tf.test.TestCase): def testBuildClassificationNetwork(self): batch_size = 5 height, width = 224, 224 num_classes = 1000 inputs = tf.random_uniform((batch_size, height, width, 3)) logits, end_points = inception.inception_v1(inputs, num_classes) self.assertTrue(logits.op.name.startswith('InceptionV1/Logits')) self.assertListEqual(logits.get_shape().as_list(), [batch_size, num_classes]) self.assertTrue('Predictions' in end_points) self.assertListEqual(end_points['Predictions'].get_shape().as_list(), [batch_size, num_classes]) def testBuildBaseNetwork(self): batch_size = 5 height, width = 224, 224 inputs = tf.random_uniform((batch_size, height, width, 3)) mixed_6c, end_points = inception.inception_v1_base(inputs) self.assertTrue(mixed_6c.op.name.startswith('InceptionV1/Mixed_5c')) self.assertListEqual(mixed_6c.get_shape().as_list(), [batch_size, 7, 7, 1024]) expected_endpoints = ['Conv2d_1a_7x7', 'MaxPool_2a_3x3', 'Conv2d_2b_1x1', 'Conv2d_2c_3x3', 'MaxPool_3a_3x3', 'Mixed_3b', 'Mixed_3c', 'MaxPool_4a_3x3', 'Mixed_4b', 'Mixed_4c', 'Mixed_4d', 'Mixed_4e', 'Mixed_4f', 'MaxPool_5a_2x2', 'Mixed_5b', 'Mixed_5c'] self.assertItemsEqual(end_points.keys(), expected_endpoints) def testBuildOnlyUptoFinalEndpoint(self): batch_size = 5 height, width = 224, 224 endpoints = ['Conv2d_1a_7x7', 'MaxPool_2a_3x3', 'Conv2d_2b_1x1', 'Conv2d_2c_3x3', 'MaxPool_3a_3x3', 'Mixed_3b', 'Mixed_3c', 'MaxPool_4a_3x3', 'Mixed_4b', 'Mixed_4c', 'Mixed_4d', 'Mixed_4e', 'Mixed_4f', 'MaxPool_5a_2x2', 'Mixed_5b', 'Mixed_5c'] for index, endpoint in enumerate(endpoints): with tf.Graph().as_default(): inputs = tf.random_uniform((batch_size, height, width, 3)) out_tensor, end_points = inception.inception_v1_base( inputs, final_endpoint=endpoint) self.assertTrue(out_tensor.op.name.startswith( 'InceptionV1/' + endpoint)) self.assertItemsEqual(endpoints[:index+1], end_points) def testBuildAndCheckAllEndPointsUptoMixed5c(self): batch_size = 5 height, width = 224, 224 inputs = tf.random_uniform((batch_size, height, width, 3)) _, end_points = inception.inception_v1_base(inputs, final_endpoint='Mixed_5c') endpoints_shapes = {'Conv2d_1a_7x7': [5, 112, 112, 64], 'MaxPool_2a_3x3': [5, 56, 56, 64], 'Conv2d_2b_1x1': [5, 56, 56, 64], 'Conv2d_2c_3x3': [5, 56, 56, 192], 'MaxPool_3a_3x3': [5, 28, 28, 192], 'Mixed_3b': [5, 28, 28, 256], 'Mixed_3c': [5, 28, 28, 480], 'MaxPool_4a_3x3': [5, 14, 14, 480], 'Mixed_4b': [5, 14, 14, 512], 'Mixed_4c': [5, 14, 14, 512], 'Mixed_4d': [5, 14, 14, 512], 'Mixed_4e': [5, 14, 14, 528], 'Mixed_4f': [5, 14, 14, 832], 'MaxPool_5a_2x2': [5, 7, 7, 832], 'Mixed_5b': [5, 7, 7, 832], 'Mixed_5c': [5, 7, 7, 1024]} self.assertItemsEqual(endpoints_shapes.keys(), end_points.keys()) for endpoint_name in endpoints_shapes: expected_shape = endpoints_shapes[endpoint_name] self.assertTrue(endpoint_name in end_points) self.assertListEqual(end_points[endpoint_name].get_shape().as_list(), expected_shape) def testModelHasExpectedNumberOfParameters(self): batch_size = 5 height, width = 224, 224 inputs = tf.random_uniform((batch_size, height, width, 3)) with slim.arg_scope(inception.inception_v1_arg_scope()): inception.inception_v1_base(inputs) total_params, _ = slim.model_analyzer.analyze_vars( slim.get_model_variables()) self.assertAlmostEqual(5607184, total_params) def testHalfSizeImages(self): batch_size = 5 height, width = 112, 112 inputs = tf.random_uniform((batch_size, height, width, 3)) mixed_5c, _ = inception.inception_v1_base(inputs) self.assertTrue(mixed_5c.op.name.startswith('InceptionV1/Mixed_5c')) self.assertListEqual(mixed_5c.get_shape().as_list(), [batch_size, 4, 4, 1024]) def testUnknownImageShape(self): tf.reset_default_graph() batch_size = 2 height, width = 224, 224 num_classes = 1000 input_np = np.random.uniform(0, 1, (batch_size, height, width, 3)) with self.test_session() as sess: inputs = tf.placeholder(tf.float32, shape=(batch_size, None, None, 3)) logits, end_points = inception.inception_v1(inputs, num_classes) self.assertTrue(logits.op.name.startswith('InceptionV1/Logits')) self.assertListEqual(logits.get_shape().as_list(), [batch_size, num_classes]) pre_pool = end_points['Mixed_5c'] feed_dict = {inputs: input_np} tf.global_variables_initializer().run() pre_pool_out = sess.run(pre_pool, feed_dict=feed_dict) self.assertListEqual(list(pre_pool_out.shape), [batch_size, 7, 7, 1024]) def testUnknowBatchSize(self): batch_size = 1 height, width = 224, 224 num_classes = 1000 inputs = tf.placeholder(tf.float32, (None, height, width, 3)) logits, _ = inception.inception_v1(inputs, num_classes) self.assertTrue(logits.op.name.startswith('InceptionV1/Logits')) self.assertListEqual(logits.get_shape().as_list(), [None, num_classes]) images = tf.random_uniform((batch_size, height, width, 3)) with self.test_session() as sess: sess.run(tf.global_variables_initializer()) output = sess.run(logits, {inputs: images.eval()}) self.assertEquals(output.shape, (batch_size, num_classes)) def testEvaluation(self): batch_size = 2 height, width = 224, 224 num_classes = 1000 eval_inputs = tf.random_uniform((batch_size, height, width, 3)) logits, _ = inception.inception_v1(eval_inputs, num_classes, is_training=False) predictions = tf.argmax(logits, 1) with self.test_session() as sess: sess.run(tf.global_variables_initializer()) output = sess.run(predictions) self.assertEquals(output.shape, (batch_size,)) def testTrainEvalWithReuse(self): train_batch_size = 5 eval_batch_size = 2 height, width = 224, 224 num_classes = 1000 train_inputs = tf.random_uniform((train_batch_size, height, width, 3)) inception.inception_v1(train_inputs, num_classes) eval_inputs = tf.random_uniform((eval_batch_size, height, width, 3)) logits, _ = inception.inception_v1(eval_inputs, num_classes, reuse=True) predictions = tf.argmax(logits, 1) with self.test_session() as sess: sess.run(tf.global_variables_initializer()) output = sess.run(predictions) self.assertEquals(output.shape, (eval_batch_size,)) def testLogitsNotSqueezed(self): num_classes = 25 images = tf.random_uniform([1, 224, 224, 3]) logits, _ = inception.inception_v1(images, num_classes=num_classes, spatial_squeeze=False) with self.test_session() as sess: tf.global_variables_initializer().run() logits_out = sess.run(logits) self.assertListEqual(list(logits_out.shape), [1, 1, 1, num_classes]) if __name__ == '__main__': tf.test.main()