import os
import numpy as np
import tensorflow as tf
class NodeLookup(object):
def __init__(self):
label_lookup_path = 'inception_model/imagenet_2012_challenge_label_map_proto.pbtxt'
uid_lookup_path = 'inception_model/imagenet_synset_to_human_label_map.txt'
self.node_lookup = self.load(label_lookup_path, uid_lookup_path)
def load(self, label_lookup_path, uid_lookup_path):
# 加载分类字符串n********对应分类名称的文件
proto_as_ascii_lines = tf.gfile.GFile(uid_lookup_path).readlines()
uid_to_human = {
}
#一行一行读取数据
for line in proto_as_ascii_lines :
#去掉换行符
line=line.strip('\n')
#按照'\t'分割
parsed_items = line.split('\t')
#获取分类编号
uid = parsed_items[0]
#获取分类名称
human_string = parsed_items[1]
#保存编号字符串n********与分类名称映射关系
uid_to_human[uid] = human_string
# 加载分类字符串n********对应分类编号1-1000的文件
proto_as_ascii = tf.gfile.GFile(label_lookup_path).readlines()
node_id_to_uid = {
}
for line in proto_as_ascii:
if line.startswith(' target_class:'):
#获取分类编号1-1000
target_class = int(line.split(': ')[1])
if line.startswith(' target_class_string:'):
#获取编号字符串n********
target_class_string = line.split(': ')[1]
#保存分类编号1-1000与编号字符串n********映射关系
node_id_to_uid[target_class] = target_class_string[1:-2]
#建立分类编号1-1000对应分类名称的映射关系
node_id_to_name = {
}
for key, val in node_id_to_uid.items():
#获取分类名称
name = uid_to_human[val]
#建立分类编号1-1000到分类名称的映射关系
node_id_to_name[key] = name
return node_id_to_name
#传入分类编号1-1000返回分类名称
def id_to_string(self, node_id):
if node_id not in self.node_lookup:
return ''
return self.node_lookup[node_id]
#生成计算图
with tf.gfile.FastGFile('inception_model/classify_image_graph_def.pb', 'rb') as f:
graph_def = tf.GraphDef()
graph_def.ParseFromString(f.read())
tf.import_graph_def(graph_def, name='')
with tf.Session() as sess:
#定义inception模型输出张量
softmax_tensor = sess.graph.get_tensor_by_name('softmax:0')
#遍历目录
for root,dirs,files in os.walk('images/'):
for file in files:
#载入图片
image_data = tf.gfile.FastGFile(os.path.join(root,file), 'rb').read()
predictions = sess.run(softmax_tensor,{
'DecodeJpeg/contents:0': image_data})#图片格式是jpg格式
predictions = np.squeeze(predictions)#把结果转为1维数据
#打印图片路径及名称
image_path = os.path.join(root,file)
print(image_path)
#排序
top_k = predictions.argsort()[-3:][::-1]
node_lookup = NodeLookup()
for node_id in top_k:
#获取分类名称
human_string = node_lookup.id_to_string(node_id)
#获取该分类的置信度
score = predictions[node_id]
print('%s (score = %.5f)' % (human_string, score))
#换行
print()
Put the following 4 images into the images folder, then run the program, and finally display the prediction results of the top three scores.
operation result:
