image_resizer.py

#This file change the size of images
#http://pythoncentral.io/resize-image-python-batch/
#Usage: python image_resizer.py -d 'PATHHERE' -w 448 -h 200

import os
import getopt
import sys
from PIL import Image

#Parsing the image
opts, args = getopt.getopt(sys.argv[1:], 'd:w:h')

# Set some default values to the needed variables.
directory = ''
width = -1
height = -1

# Let's parse the arguments.
opts, args = getopt.getopt(sys.argv[1:], 'd:w:h:')

# Set some default values to the needed variables.
directory = ''
width = -1
height = -1

# If an argument was passed in, assign it to the correct variable.
for opt, arg in opts:
    if opt == '-d':
        directory = arg
    elif opt == '-w':
        width = int(arg)
    elif opt == '-h':
        height = int(arg)

# We have to make sure that all of the arguments were passed.
if width == -1 or height == -1 or directory == '':
    print('Invalid command line arguments. -d [directory] ' \
          '-w [width] -h [height] are required')

    # If an argument is missing exit the application.
    exit()

#Iterate through every image given in the directory argument and resize it
for image in os.listdir(directory):
    print('Resizing image ' + image)

    # Open the image file
    img = Image.open(os.path.join(directory, image))
    # Resize it
    #img = img.resize((width, height), Image.BILINEAR)
    img = img.resize((width, height), Image.ANTIALIAS)
    # Save it back to disk.
    img.save(os.path.join(directory, '' + image))

print('Batch processing complete.')