Copying/cooking my own version Akiyoshi Kitaoka's amazing art (see https://www.ritsumei.ac.jp/~akitaoka/index-e.html)

linemethod.py

import math
from statistics import mean
from PIL import Image, ImageColor, ImageDraw
import sys
import numpy as np
import random

# Copying/cooking my own version Akiyoshi Kitaoka's amazing art (see https://www.ritsumei.ac.jp/~akitaoka/index-e.html)
filename='bird.png'
img = Image.open(filename)
output = Image.new("RGB", img.size)
drawer = ImageDraw.Draw(output)

def getaveragecolor(image):
    return (int(mean(image.getdata(0))),int(mean(image.getdata(1))),int(mean(image.getdata(2))))
    
def getbrightness(rgbvalue):
    brightness = 0.2126*rgbvalue[0] + 0.7152 * rgbvalue[1] + 0.0722 * rgbvalue[2]
    return brightness/255.0

numlines = 30
lineheight = img.size[1]/float(numlines)
lineresolution = 100
linewidth = img.size[0]/float(lineresolution)
for i in range(numlines):
    for j in range(lineresolution):
        rectangle = img.crop((i*lineheight,j*linewidth,(i+1)*lineheight,(j+1)*linewidth))
        avgcolor = getaveragecolor(rectangle)
        brightness = getbrightness(avgcolor)
        drawer.rectangle([i*lineheight + (1-brightness)*lineheight,j*linewidth,(i+1)*lineheight,(j+1)*linewidth],fill=avgcolor,width=0)


    
output.show()
output.save(str(numlines)+filename)