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Created Oct 4, 2017
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import os
import sys
import argparse
from flask import Flask, render_template, request, redirect, url_for, jsonify
from werkzeug.utils import secure_filename
import numpy as np
import tensorflow as tf
from PIL import Image
import matplotlib.pyplot as plt
import resnet_model
WIDTH = 32
parser = argparse.ArgumentParser()
# Basic model parameters.
parser.add_argument('--model_dir', type=str, default='/tmp/cifar10_model',
help='The directory where the model will be stored.')
parser.add_argument('--resnet_size', type=int, default=32,
help='The size of the ResNet model to use.')
FLAGS = parser.parse_args()
UPLOAD_FOLDER = './uploads'
ALLOWED_EXTENSIONS = set(['png', 'jpg'])
app = Flask(__name__)
app.secret_key = 'some_secret'
CIFAR_10_CLASSES = ["airplane", "automobile", "bird",
"cat", "deer", "dog", "frog",
"horse", "ship", "truck"]
def allowed_file(filename):
return '.' in filename and \
filename.rsplit('.', 1)[1].lower() in ALLOWED_EXTENSIONS
def cifar10_model_fn(features, labels, mode):
"""Model function for CIFAR-10."""
network = resnet_model.cifar10_resnet_v2_generator( FLAGS.resnet_size, NUM_CLASSES)
inputs = tf.reshape(features, [-1, HEIGHT, WIDTH, DEPTH])
logits = network(inputs, mode == tf.estimator.ModeKeys.TRAIN)
predictions = {
'classes': tf.argmax(logits, axis=1),
'probabilities': tf.nn.softmax(logits, name='softmax_tensor')
if mode == tf.estimator.ModeKeys.PREDICT:
return tf.estimator.EstimatorSpec(mode=mode, predictions=predictions)
def get_input_fn(img):
def input_fn():
data = tf.cast(np.asarray([np.asarray(img)]), tf.float32)
dataset =
dataset = dataset.from_tensors(data)
iterator = dataset.make_one_shot_iterator()
image = iterator.get_next()
return image
return input_fn
def index():
message = "Put your image"
return render_template('index.html', message=message)
@app.route('/post', methods=['POST'])
def post():
if request.method == 'POST':
if 'file' not in request.files:
return jsonify({"message": 'No file part'})
file = request.files['file']
if file.filename == '':
return jsonify({"message": 'No selected file'})
if file and allowed_file(file.filename):
filename = secure_filename(file.filename)
current_path = os.path.join(app.config['UPLOAD_FOLDER'], filename)
img =
img = img.resize((32,32)).convert('RGB')
input_fn = get_input_fn(img)
cifar_classifier = tf.estimator.Estimator(
model_fn=cifar10_model_fn, model_dir=FLAGS.model_dir)
ans = cifar_classifier.predict(input_fn)
ans_index = list(ans)[0]
return jsonify({
"message": "ok",
"filename": file.filename,
"answer": CIFAR_10_CLASSES[ans_index['classes']],
"probabilities": [float(i) for i in ans_index['probabilities']]})
return jsonify({"message": "ng"})
if __name__ == '__main__':
app.debug = True # デバッグモード有効化
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