filtro (1)

Example Python program filtro (1).py

Modules

• import numpy as np
• import Tkinter
• from PIL import ImageDraw
• import Image
• import ImageTk
• from sys import argv

Methods

• def filtro(original):
• def filtroPorNumeros(im,n):
• def escalaDeGrises(im):
• def main():

Code

Python tkinter example

import numpy as np
import Tkinter
from PIL import ImageDraw
import Image
import ImageTk
from sys import argv

def filtro(original):
    width, height = original.size
    print width, height
    original = original.convert('L')
    modificado = Image.new(mode='L', size =(width,height))
    org = original.load()
    mod = modificado.load()
    contador = 0
    for y in xrange(height):
        for x in xrange(width):
            pixel = org[x,y]
            try:
                pixel += org[x-1,y]
                contador+=1
            except:
                None
            try:
                pixel += org[x+1,y]
                contador+=1
            except:
                None
            try:
                pixel += org[x,y+1]
                contador+=1
            except:
                None
            try:
                pixel += org[x,y-1]
                contador+=1
            except:
                None
            promedio = (pixel)/ (contador)
            mod[x,y] = int(promedio) 
            print x,y
            contador = 1
            pixel = 0
    data = np.array(modificado)
    print data
    print data.shape
    im = Image.fromarray(data)
    return im


def filtroPorNumeros(im,n):
    for x in xrange(n):
        im = filtro(im)
    return im

def escalaDeGrises(im):
    width, height = im.size
    print width, height
    im = im.convert('RGB')
    pix = im.load()
    promedio = 0.0
    for y in xrange(height):
            for x in xrange(width):
                r, g, b = pix[x, y]
                promedio = (r+g+b)/3.0
                pix[x, y] = int(promedio), int(promedio), int(promedio)
    data = np.array(im)
    im2 = Image.fromarray(data)
    return im2

def main():
    imagen = Image.open(argv[1])
    original = imagen
    escalaGrises = escalaDeGrises(imagen)
    modificado = filtroPorNumeros(escalaGrises, int(argv[2]))
    root = Tkinter.Tk()
    tkimageModf = ImageTk.PhotoImage(modificado)
    tkimageOrig = ImageTk.PhotoImage(original)
    Tkinter.Label(root, image = tkimageModf).pack()
    Tkinter.Label(root, image = tkimageOrig).pack()
    root.mainloop()
main()

Useful Links

• Articles: https://python-commandments.org/
• Python shell: https://bsdnerds.org/learn-python/
• Tutorial: https://pythonprogramminglanguage.com/