resize_images.py

import cv2
import os.path
import os
from PIL import Image
from os.path import basename
import sys
from decimal import Decimal
from __builtin__ import str

isfile = os.path.isfile
join = os.path.join
BASE_DIR = os.path.dirname(os.path.abspath(__file__))
input_path = BASE_DIR + '/cropped/'
print 'Start resizing process..'
for root, dirs, files in os.walk(input_path):
    for filename in files:        
        img = cv2.imread(BASE_DIR + '/cropped/' + filename,3)
        img = cv2.resize(img, (400, 250))
        cv2.imwrite(BASE_DIR + '/cropped_resize/' + filename, img)
        print filename + ' is resized.'

print 'The process is finished successfully'

This script is used to resize a set of images inside a folder, using opencv with python,