img_data = expand_dims(data, 0)
data_gen = ImageDataGenerator(horizontal_flip=True, vertical_flip=True) ------ 이미지 데이터를 뒤집기
data_iter = data_gen.flow(img_data, batch_size=1)
fig = plt.figure(figsize=(30,30))
for i in range(9):
    plt.subplot(3, 3, i+1)
    batch = data_iter.next()
    image = batch[0].astype('uint16')
    plt.imshow(image)
plt.show()