stitch images in python

stitch.py

"""
First make sure you have the Python Image libraries installed

   sudo pip install pillow

Down below you will need to define the absolute path to the images see "dir=..."

Run this by entering

    python stitch.py

"""
from PIL import Image
import os

# change this to the director that has your images
dir = "/Users/johnweir/Desktop"
out_file = "joined_images.jpg"

def getFiles(dir):
    files = []
    for c in os.listdir(dir):
        _, ext = os.path.splitext(c)

        if ext == '.jpg':
            files.append(c)

    return files

def merge_images(dir, file):
    image = Image.open(os.path.join(dir, file))
    base = Image.open(out_file)

    (width1, height1) = image.size
    (width2, height2) = base.size

    result_width = max(width1, width2)
    result_height = height1 + height2

    out = Image.new('RGB', (result_width, result_height))
    out.paste(im=base, box=(0, 0))
    out.paste(im=image, box=(0, height2))

    out.save(out_file,"JPEG")
    return out

def createTarget():
    result = Image.new('RGB', (1, 1))
    result.save(out_file,"JPEG")



print("Finding image files")
ff = getFiles(dir)
ff.sort()
print("Found", len(ff), "files to process")
print("Stiching files")
createTarget()
for f in ff:
    merge_images(dir, f)

print("all done")