Esquinas.py

from Tkinter import *
from sys import argv
from PIL import Image, ImageTk
from datetime import *
import random as R
 
def filtroGrisesPromedio(imagen):
  x, y = imagen.size
	px = imagen.load()
	imagenGrises = Image.new('RGB',(x,y))
	for i in range(x):
		for j in range(y):
			pixeles = px[i,j]
			prom = sum(pixeles) / 3
			imagenGrises.putpixel((i,j),(prom,prom,prom))
	return imagenGrises
 
def bordesPorResta(im):
	x,y = im.size
	m1 = im.load()
	for i in range(5):
		imagen2 = FiltroMediano(im)
	m2 = imagen2.load()
	imb = Image.new('RGB',(x,y))
	for i in range(x):
		for j in range(y):
			r = m1[i,j][0] - m2[i,j][0]
			g = m1[i,j][1] - m2[i,j][1]
 			b = m1[i,j][2] - m2[i,j][2]
			pixel = (r,g,b)
			imb.putpixel((i,j),pixel)
	return imb
 
def FiltroMediano(imagen):
        im = imagen
        ancho, altura = imagen.size
        p = imagen.load()
        for i in range(ancho):
                for j in range(altura):
                        lp = []
                        for k in range(-1,2):
                                for l in range(-1,2):
                                        if i+k >=  0 and j+l >= 0 and i+k < ancho and j+l < altura:
                                                lp.append(p[i+k,j+l][1])
                        lp.sort()
                        if len(lp) % 2 != 0:
                                valor = lp[(len(lp)/2)]
                        else:
                                valor = (lp[(len(lp)/2) - 1] + lp[(len(lp)/2)])/2
 
                        p[i,j] = (valor,valor,valor)
        return im

def filtroPromedio(imagen):
	x,y = imagen.size
	pixeles = imagen.load()
	imagenFiltrada = Image.new('RGB',(x,y))
	c = 1
	for i in range(x):
		for j in range(y):
			px = pixeles[i,j]
			lista = list()
			try:
				p1 = pixeles[i+1,j]
				c += 1
				lista.append(p1)
			except:
				p1 = (0,0,0)
				lista.append(p1)
			try:
				p2 = pixeles[i-1,j]
				c += 1
				lista.append(p2)
			except:
				p2 = (0,0,0)
				lista.append(p2)
			try:
				p3 = pixeles[i,j+1]
				c += 1
				lista.append(p3)
			except:
				p3 = (0,0,0)
				lista.append(p3)
			try:
				p4 = pixeles[i,j-1]
				c += 1
				lista.append(p4)
			except:
				p4 = (0,0,0)
				lista.append(p4)
			
			print lista
			print "ordenada"
			print lista.sort()
 
	return imagenFiltrada
 
def main():
	p = "test.png"
	im = Image.open(p)
	gris = filtroGrisesPromedio(im)
 
	i_f = FiltroMediano(gris)
	for i in range (5):
		i_f = FiltroMediano(i_f)

	f = bordesPorResta(gris)
	f.show()
 
main()