3 Copyright (c) 2018 Intel Corporation
5 Licensed under the Apache License, Version 2.0 (the "License");
6 you may not use this file except in compliance with the License.
7 You may obtain a copy of the License at
9 http://www.apache.org/licenses/LICENSE-2.0
11 Unless required by applicable law or agreed to in writing, software
12 distributed under the License is distributed on an "AS IS" BASIS,
13 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 See the License for the specific language governing permissions and
15 limitations under the License.
17 from __future__ import print_function
20 from argparse import ArgumentParser
25 from openvino.inference_engine import IENetwork, IEPlugin
28 def build_argparser():
29 parser = ArgumentParser()
30 parser.add_argument("-m", "--model", help="Path to an .xml file with a trained model.", required=True, type=str)
31 parser.add_argument("-i", "--input", help="Path to a folder with images or path to an image files", required=True,
33 parser.add_argument("-l", "--cpu_extension",
34 help="MKLDNN (CPU)-targeted custom layers.Absolute path to a shared library with the kernels "
35 "impl.", type=str, default=None)
36 parser.add_argument("-pp", "--plugin_dir", help="Path to a plugin folder", type=str, default=None)
37 parser.add_argument("-d", "--device",
38 help="Specify the target device to infer on; CPU, GPU, FPGA or MYRIAD is acceptable. Sample "
39 "will look for a suitable plugin for device specified (CPU by default)", default="CPU",
41 parser.add_argument("--labels", help="Labels mapping file", default=None, type=str)
42 parser.add_argument("-nt", "--number_top", help="Number of top results", default=10, type=int)
43 parser.add_argument("-ni", "--number_iter", help="Number of inference iterations", default=1, type=int)
44 parser.add_argument("-pc", "--perf_counts", help="Report performance counters", default=False, action="store_true")
50 log.basicConfig(format="[ %(levelname)s ] %(message)s", level=log.INFO, stream=sys.stdout)
51 args = build_argparser().parse_args()
52 model_xml = args.model
53 model_bin = os.path.splitext(model_xml)[0] + ".bin"
55 # Plugin initialization for specified device and load extensions library if specified
56 plugin = IEPlugin(device=args.device, plugin_dirs=args.plugin_dir)
57 if args.cpu_extension and 'CPU' in args.device:
58 plugin.add_cpu_extension(args.cpu_extension)
60 log.info("Loading network files:\n\t{}\n\t{}".format(model_xml, model_bin))
61 net = IENetwork(model=model_xml, weights=model_bin)
63 if plugin.device == "CPU":
64 supported_layers = plugin.get_supported_layers(net)
65 not_supported_layers = [l for l in net.layers.keys() if l not in supported_layers]
66 if len(not_supported_layers) != 0:
67 log.error("Following layers are not supported by the plugin for specified device {}:\n {}".
68 format(plugin.device, ', '.join(not_supported_layers)))
69 log.error("Please try to specify cpu extensions library path in sample's command line parameters using -l "
70 "or --cpu_extension command line argument")
72 assert len(net.inputs.keys()) == 1, "Sample supports only single input topologies"
73 assert len(net.outputs) == 1, "Sample supports only single output topologies"
75 log.info("Preparing input blobs")
76 input_blob = next(iter(net.inputs))
77 out_blob = next(iter(net.outputs))
78 net.batch_size = len(args.input)
80 # Read and pre-process input images
81 n, c, h, w = net.inputs[input_blob].shape
82 images = np.ndarray(shape=(n, c, h, w))
84 image = cv2.imread(args.input[i])
85 if image.shape[:-1] != (h, w):
86 log.warning("Image {} is resized from {} to {}".format(args.input[i], image.shape[:-1], (h, w)))
87 image = cv2.resize(image, (w, h))
88 image = image.transpose((2, 0, 1)) # Change data layout from HWC to CHW
90 log.info("Batch size is {}".format(n))
92 # Loading model to the plugin
93 log.info("Loading model to the plugin")
94 exec_net = plugin.load(network=net)
97 # Start sync inference
98 log.info("Starting inference ({} iterations)".format(args.number_iter))
100 for i in range(args.number_iter):
102 infer_request_handle = exec_net.start_async(request_id=0, inputs={input_blob: images})
103 infer_request_handle.wait()
104 infer_time.append((time() - t0) * 1000)
105 log.info("Average running time of one iteration: {} ms".format(np.average(np.asarray(infer_time))))
107 perf_counts = infer_request_handle.get_perf_counts()
108 log.info("Performance counters:")
109 print("{:<70} {:<15} {:<15} {:<15} {:<10}".format('name', 'layer_type', 'exet_type', 'status', 'real_time, us'))
110 for layer, stats in perf_counts.items():
111 print("{:<70} {:<15} {:<15} {:<15} {:<10}".format(layer, stats['layer_type'], stats['exec_type'],
112 stats['status'], stats['real_time']))
113 # Processing output blob
114 log.info("Processing output blob")
115 res = infer_request_handle.outputs[out_blob]
116 log.info("Top {} results: ".format(args.number_top))
118 with open(args.labels, 'r') as f:
119 labels_map = [x.split(sep=' ', maxsplit=1)[-1].strip() for x in f]
122 for i, probs in enumerate(res):
123 probs = np.squeeze(probs)
124 top_ind = np.argsort(probs)[-args.number_top:][::-1]
125 print("Image {}\n".format(args.input[i]))
127 det_label = labels_map[id] if labels_map else "#{}".format(id)
128 print("{:.7f} {}".format(probs[id], det_label))
135 if __name__ == '__main__':
136 sys.exit(main() or 0)