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diff --git a/example-apps/PDD/pcb-defect-detection/libs/export_pbs/test_exportPb.py b/example-apps/PDD/pcb-defect-detection/libs/export_pbs/test_exportPb.py
new file mode 100755
index 0000000..ad78e42
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+++ b/example-apps/PDD/pcb-defect-detection/libs/export_pbs/test_exportPb.py
@@ -0,0 +1,81 @@
+# -*- coding:utf-8 -*-
+
+from __future__ import absolute_import
+from __future__ import print_function
+from __future__ import division
+
+import os, sys
+import tensorflow as tf
+import time
+import cv2
+import argparse
+import numpy as np
+sys.path.append("../")
+
+from data.io.image_preprocess import short_side_resize_for_inference_data
+from libs.configs import cfgs
+from libs.networks import build_whole_network
+from libs.box_utils import draw_box_in_img
+from help_utils import tools
+
+
+
+
+
+def load_graph(frozen_graph_file):
+
+    # we parse the graph_def file
+    with tf.gfile.GFile(frozen_graph_file, 'rb') as f:
+        graph_def = tf.GraphDef()
+        graph_def.ParseFromString(f.read())
+
+    # we load the graph_def in the default graph
+
+    with tf.Graph().as_default() as graph:
+        tf.import_graph_def(graph_def,
+                            input_map=None,
+                            return_elements=None,
+                            name="",
+                            op_dict=None,
+                            producer_op_list=None)
+    return graph
+
+
+def test(frozen_graph_path, test_dir):
+
+    graph = load_graph(frozen_graph_path)
+    print("we are testing ====>>>>", frozen_graph_path)
+
+    img = graph.get_tensor_by_name("input_img:0")
+    dets = graph.get_tensor_by_name("DetResults:0")
+
+    with tf.Session(graph=graph) as sess:
+        for img_path in os.listdir(test_dir):
+            a_img = cv2.imread(os.path.join(test_dir, img_path))[:, :, ::-1]
+            st = time.time()
+            dets_val = sess.run(dets, feed_dict={img: a_img})
+
+            show_indices = dets_val[:, 1] >= 0.5
+            dets_val = dets_val[show_indices]
+            final_detections = draw_box_in_img.draw_boxes_with_label_and_scores(a_img,
+                                                                                boxes=dets_val[:, 2:],
+                                                                                labels=dets_val[:, 0],
+                                                                                scores=dets_val[:, 1])
+            cv2.imwrite(img_path,
+                        final_detections[:, :, ::-1])
+            print ("%s cost time: %f" % (img_path, time.time() - st))
+
+if __name__ == '__main__':
+    test('/home/yjr/PycharmProjects/Faster-RCNN_Tensorflow/output/Pbs/FasterRCNN_Res101_Pascal_Frozen.pb',
+         '/home/yjr/PycharmProjects/Faster-RCNN_Tensorflow/tools/demos')
+
+
+
+
+
+
+
+
+
+
+