Python Composite Image

#!/usr/bin/env python
# Composite generation script using PIL

import sys
import os.path
import PIL
from PIL import Image



input_dir = r"C:/unfavorable semicircle/!LockKF/" #Path to directory of key frames
x = 160         #Initial X
y = 0           #Initial Y
width = 197     #Width of the composite image
height = int(50000/width)   #Approxomite height of the image given width
                            #Change dividend based on how many images there are

files = os.scandir(input_dir)   #Gets all pictures in directory
thumbnail_size = (1, 1)         #How big each image is in composite
comp = Image.new("RGB", (width, height), "white") #Creates an image object for composite

# Loop through all files in dir
for i in os.listdir(input_dir):
    try:
        # Attempt to open an image file
        image = Image.open(input_dir + i)
    except IOError:
        # Report error, and then skip to the next argument
        print("Problem opening" + " " + i)
        continue

    # Resize the image
    image = image.resize(thumbnail_size, Image.ANTIALIAS)

    # Add image to composite
    comp.paste(image, (x,y))
    print("pasted " + i)
    x+= 1
    if(x == width):
        x = 0
        y+= 1


# Save the composite as Comp.png in the input directory.
comp.save(input_dir + 'Comp.png')
print("Done")