Magenta's entry in the Patch the Image popularity contest on StackExchange

MagentaInpainting.py

#***************************************************************************************
#    Title: Inpainting Algorithm
#    Author: Magenta
#    Date: 02.02.2016
#    Availability: https://codegolf.stackexchange.com/a/70753/82433
#    License: creative commons license
#
#********************************************************************************

from PIL import Image, ImageFilter, ImageDraw
import time
im=Image.open('2.png')
im1=Image.open('2 map.png')
a=list(im.getdata())
b=list(im1.getdata())
size=list(im.size)
'''
def dist(a,b):
    d=0
    for x in range(0,3):
        d+=(a[x]-b[x])**2
    return(d**0.5)
#'''
C=[]
d=[]
y=[]
for x in range(0,len(a)):
    if(b[x][0]==255):
        C.append((0,0,0))
    else:
        y=(a[x][0],a[x][1],a[x][2])
        C.append(y)
im1.putdata(C)
k=(-1,0,1,-2,0,2,-1,0,1)
k1=(-1,-2,-1,0,0,0,1,2,1)
ix=im.filter(ImageFilter.Kernel((3,3),k,1,128))
iy=im.filter(ImageFilter.Kernel((3,3),k1,1,128))
ix1=list(ix.getdata())
iy1=list(iy.getdata())
d=[]
im2=Image.new('RGB',size)
draw=ImageDraw.Draw(im2)
c=list(C)
Length=0
for L in range(100,0,-10):
    for x in range(0,size[0]):
        for y in range(0,size[1]):
            n=x+(size[0]*y)
            if(c[n]!=(0,0,0)):
                w=(((iy1[n][0]+iy1[n][1]+iy1[n][2])//3)-128)
                z=(((ix1[n][0]+ix1[n][1]+ix1[n][2])//3)-128)
                Length=(w**2+z**2)**0.5
                if Length==0:
                    w+=1
                    z+=1
                Length=(w**2+z**2)**0.5
                w/=(Length/L)
                z/=(Length/L)
                w=int(w)
                z=int(z)
                draw.line(((x,y,w+x,z+y)),c[n])

d=list(im2.getdata())
S=[]
d1=[]
A=d[0]
for x in range(0,size[0]):
    for y in range(0,size[1]):
        n=y+(size[1]*x)
        nx=y+(size[1]*x)-1
        ny=y+(size[1]*x)-size[0]
        if d[n]==(0,0,0):
            S=[0,0,0]
            for z in range(0,3):
                S[z]=(d[nx][z]+d[ny][z])//2
            #print(S)
            d1.append(tuple(S))
        else:
            d1.append(tuple(d[n]))
d=list(d1)
im2.putdata(d)
#im2=im2.filter(ImageFilter.GaussianBlur(radius=0.5))
d=im2.getdata()
f=[]
#'''
for v in range(0,len(a)):
    if(b[v][0]*b[v][1]*b[v][2]!=0):
        f.append(d[v])
    else:
        f.append(C[v])
#'''
im1.putdata(f)
im1.save('pic.png')