readTiff.py

from PIL import Image
import csv



immagine = Image.open(my_tiff_FILE)
pixels = list(map(lambda i: i*2,list(immagine.getdata())))
width, height = immagine.size
pixels = [pixels[i * width:(i + 1) * width]  for i in range(height)]
print(pixels[0])

with open("/home/daniele/Downloads/myImg2.csv", "w") as f:
    writer = csv.writer(f)
    writer.writerows(pixels)