Image size calculator

from PIL import Image
import os

print("Hello there! I am an image resolution and size calculator")
print("Please make sure that folder is located on Desktop")
folder_name = input("Please enter folder name that contains the images you wish to check:")
path = "/home/pi/Desktop/{0}".format(folder_name)

#This part is to list all files in the folder. I will later add a check to make sure that the file is an image
files = []
# r=root, d=directories, f = files
for r, d, f in os.walk(path):
    for file in f:
        files.append(os.path.join(r, file))

#To get image size, bit depth and calculate resolution
for i in files:
    im_new = Image.open(i)
    width, height = im_new.size
    mode_to_bpp = {"1": 1, "L": 8, "P": 8, "RGB": 24, "RGBA": 32, "CMYK": 32, "YCbCr": 24, "LAB": 24, "HSV": 24, "I": 32, "F": 32}
    bpp = mode_to_bpp[im_new.mode]
    resolution = width * height * bpp
    print("Image path/name is: ", i)
    print("The image resolution is: ", width, " x ", height, " x", bpp)
    print("Bit depth is: ", bpp)
    print("The resolution is: ", resolution,"\n")