filtro.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()
	imagen2 = filtroPromedio(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 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()

			#if(c > 4): 
			#	c = 4
			#r = p1[0] + p2[0] + p3[0] + p4[0]
			#g = p1[0] + p2[0] + p3[0] + p4[0]
			#b = p1[0] + p2[0] + p3[0] + p4[0]
			
			#imagenFiltrada.putpixel((i,j),(r/c,g/c,b/c))
			#c = 0
	return imagenFiltrada

def main():
	p = "poli.png"
	im = Image.open(p)
	im.show()
	gris = filtroGrisesPromedio(im)
	gris.show()

	i_f = filtroPromedio(gris)
	#i_f.show()

	#bordes = bordesPorResta(gris)
	#bordes.show()
main()