Tensorflow Crop to bounded box and save output image file

Crop_To_Bounded_Box.py

import tensorflow as tf

# Import the image
image = tf.image.decode_png(tf.read_file("./data/Input_image.png"), channels=1)

## Set the variable values here
# Offset variables values
offset_height= 20
offset_width = 20
# Target variables values
target_height = 20
target_width = 20

# Begin the session
session = tf.InteractiveSession()

print(session.run(image))

# Crop the image as per the parameters
cropped_image_tensor = tf.image.crop_to_bounding_box(image, offset_height, offset_width, target_height, target_width)

output_image = tf.image.encode_png(cropped_image_tensor)

# Create a constant as filename
file_name = tf.constant('./data/Ouput_image.png')
file = tf.write_file(file_name, output_image)

# print(session.run(file))

print("Image Saved!")

session.close()

Hello, How do we save a batch of images? does tf.write_file work?