from PIL import Image
import math


def numToHex(num):
    if num < 10:
        return str(num)
    elif num == 10:
        return 'a'
    elif num == 11:
        return 'b'
    elif num == 12:
        return 'c'
    elif num == 13:
        return 'd'
    elif num == 14:
        return 'e'
    elif num == 15:
        return 'f'


def encode(input):
    string = ""
    inImg = Image.open(input)
    width = inImg.size[0]
    height = inImg.size[1]
    # encode image 2 into a copy of image 1
    for y in range(height):
        for x in range(width):
            pixel = inImg.getpixel((x, y))
            for i in range(3):
                string += numToHex(pixel[i] // 16)
                string += numToHex(pixel[i] % 16)
    print(string)
    return string


def putContents(file, string):
    with open(file, "w+") as f:
        f.write(string)


putContents("converted.txt", encode("image.png"))