A test of mine

test1.py

from PIL import Image

def pair(a):

	if a % 2 == 0:
		return a
	else:
		return min(a+1,255)

im = Image.open("machiavel.jpg")

data = list(im.getdata())
h1 = list(im.histogram())

data3 = []

for i in data:

	r = (pair(i[0]), pair(i[1]), pair(i[2]))

	data3.append(r)

im.putdata(data3)

im.save("result" + ".jpg")