Generates images with random dates

genimages.py

#!/usr/bin/python
from PIL import Image, ImageFont, ImageDraw, ExifTags
import piexif
from datetime import datetime, timedelta
import random
import sys

def random_date(start, end):
    delta = end - start
    int_delta = (delta.days * 24 * 60 * 60) + delta.seconds
    random_second = random.randrange(int_delta)
    return start + timedelta(seconds=random_second)

def generateImages(count, maxagedays):
    today = datetime.now()
    mindate = today - timedelta(days=int(maxagedays))
    for x in xrange(int(count)):
        r = random.randrange(0,255)
        g = random.randrange(0,255)
        b = random.randrange(0,255)

        # Random color rectangle
        im = Image.new('RGBA', (140, 140), (255, 255, 255, 0))
        draw = ImageDraw.Draw(im)
        fill = (r, g, b, 0xff)
        outline = (0,0,0,255)
        draw.rectangle((0, 0, 140, 140), fill=fill, outline=outline)

        # Generate random date
        datestr = random_date(mindate, today).strftime('%Y:%m:%d %H:%M:%S')
        print "Random date is "+datestr

        filename = ("fake_%s.jpeg" % datestr).replace(":", "-")

        im.save(filename, "jpeg")

        # Exif data
        exif_dict = piexif.load(filename)
        exif_dict["Exif"][piexif.ExifIFD.DateTimeOriginal] = datestr
        exif_bytes = piexif.dump(exif_dict)

        piexif.insert(exif_bytes, filename)


if __name__ == '__main__':
    if len(sys.argv) < 2 or len(sys.argv) > 3:
        print 'Usage: ', sys.argv[0], ' <count> [<maxagedays>]'
        exit(1)
    maxagedays = 30 if len(sys.argv) < 3 else sys.argv[2]
    generateImages(sys.argv[1], maxagedays)