"TypeError: объект 'int' не повторяется" на gresycale image

Question

У меня есть программа обработки изображений, где одна из ее функций делает контраст с изображением, которое пользователь выбирает. Но в случае исходного изображения, я получаю следующее сообщение об ошибке:

Exception in Tkinter callback 
Traceback (most recent call last): 
    File "C:\Program Files\EduPython\App\lib\tkinter\__init__.py", line 1456, in __call__ 
    return self.func(*args) 
    File "C:\Users\megzari.nassim\Desktop\Projet Complet\Test 2.py", line 194, in use_contrast 
    result = change_contrast(S2.get()) 
    File "C:\Users\megzari.nassim\Desktop\Projet Complet\Test 2.py", line 188, in change_contrast 
    new_color = tuple(int(factor * (c-128) + 128) for c in color) 
TypeError: 'int' object is not iterable 

Я попытался переконвертированием переменной color в RGB, и она до сих пор не работает.

Здесь бит кода из этой ошибки:

def change_contrast(level): 

    img = Image.open(a) 
    img.load() 

    factor = (259 * (level+255))/(255 * (259-level)) 
    for x in range(img.size[0]): 
     for y in range(img.size[1]): 
      color = img.getpixel((x, y)) 
      new_color = tuple(int(factor * (c-128) + 128) for c in color) 
      img.putpixel((x, y), new_color) 

    return img 

В случае если вам нужен полный код, вот он:

from tkinter import* 
import tkinter as Tkinter 
from tkinter import filedialog, DISABLED, messagebox as tkMessageBox 
import os 
import ntpath 
from PIL import Image, ImageTk, ImageFilter 
import PIL 
from collections import Counter 
from random import randint 
import random 
import PIL.ImageOps 


def EchelleDeGris(): 
    Ima2=Image.new("RGB",(z[0],z[1])) 
    px=Ima1.load() 
    px1=Ima2.load() 
    for x in range(z[0]): 
     for y in range(z[1]): 
      p=px[x,y] 
      if type(p)==int: 
       p=(p,p,p) 
      o=int((p[0]+p[1]+p[2])/3) 
      px1[x,y]=(o,o,o) 
    Ima2.save(""+dir_path+"\\Requirements\\ImageMod.png") 
    im2 = ImageTk.PhotoImage(file=""+dir_path+"\\Requirements\\ImageMod.png") 
    main.image = im2 
    I2 = Tkinter.Label(main, image=im2) 
    I2.grid(row=0, column=4, columnspan =4) 

def SupprimerImage(): 
    I2 = Tkinter.Label(main, image=imt) 
    I2.grid(row=0, column=4, columnspan =4) 

def Luminosite(): 
    Ima2=Image.new("RGB",(z[0],z[1])) 
    px=Ima1.load() 
    px1=Ima2.load() 
    for x in range(z[0]): 
     for y in range(z[1]): 
      p=px[x,y] 
      if type(p)==int: 
       p=(p,p,p) 
      px1[x,y]=(p[0]+S1.get(),p[1]+S1.get(),p[2]+S1.get()) 
    Ima2.save(""+dir_path+"\\Requirements\\ImageMod.png") 
    im2 = ImageTk.PhotoImage(file=""+dir_path+"\\Requirements\\ImageMod.png") 
    main.image = im2 
    I2 = Tkinter.Label(main, image=im2) 
    I2.grid(row=0, column=4, columnspan =4) 

def AnnulerModifications(): 
    I2 = Tkinter.Label(main, image=im1) 
    I2.grid(row=0, column=4, columnspan =4) 

def get_pixel(pixels, x, y): 
    try: 
     return pixels[x, y] 
    except IndexError: 
     return None 


def get_neighbors(pixels, x, y): 
    neighbors = list() 
    neighbors.append(get_pixel(pixels, x, y - 1)) 
    neighbors.append(get_pixel(pixels, x, y + 1)) 
    neighbors.append(get_pixel(pixels, x - 1, y)) 
    neighbors.append(get_pixel(pixels, x + 1, y)) 
    neighbors.append(get_pixel(pixels, x - 1, y - 1)) 
    neighbors.append(get_pixel(pixels, x - 1, y + 1)) 
    neighbors.append(get_pixel(pixels, x + 1, y - 1)) 
    neighbors.append(get_pixel(pixels, x + 1, y + 1)) 
    return neighbors 


def filter_art(pixels, size): 
    indexes = dict() 
    for x in range(size[0]): 
     for y in range(size[1]): 
      color = get_pixel(pixels, x, y) 
      neighbors = get_neighbors(pixels, x, y) 
      new_color = Counter(neighbors).most_common()[0][0] 
      if new_color is not None: 
       indexes[x, y] = new_color 
    for x, y in indexes: 
     pixels[x, y] = indexes[x, y] 


def pop_art(path_orig, path_mod, coef): 

    s=[] 
    for i in range(9): 

     r=(randint(0,255), randint(0,255), randint(0,255)) 
     g=(randint(0,255), randint(0,255), randint(0,255)) 
     b=(randint(0,255), randint(0,255), randint(0,255)) 

     image_orig = Image.open(path_orig) 
     size = image_orig.size 
     image_mod = Image.new("RGB",(size[0],size[1])) 
     pixels_orig = image_orig.load() 
     pixels_mod = image_mod.load() 
     for x in range(size[0]): 
      for y in range(size[1]): 
       p = pixels_orig[x, y] 
       if isinstance(p, int): 
        rgb = (p,p,p) 
       elif isinstance(p, tuple) and len(p) in (3, 4): 
        rgb = p[:3] 
       else: 
        raise TypeError('Unknown pallete') 
       average_color = sum(rgb)/3 
       if average_color <= 85: 
        pixels_mod[x, y] = r 
       elif 85 < average_color <= 170: 
        pixels_mod[x, y] = g 
       elif average_color > 170: 
        pixels_mod[x, y] = b 
     for _ in range(coef): 
      filter_art(pixels_mod, size) 
     image_mod.save(''+dir_path+'\\PopArt\\Modified Images\\result'+str(i)+'.png') 
     Img=[None]*9 
    for i in range(9): 
     Img[i]=Image.open(""+dir_path+"\\PopArt\\Modified Images\\result"+str(i)+".png") 
     basewidth = int(Img[i].size[1]/3) 
     wpercent = (basewidth/float(Img[i].size[0])) 
     hsize = int((float(Img[i].size[1]) * float(wpercent))) 
     Img[i] = Img[i].resize((basewidth , hsize), PIL.Image.ANTIALIAS) 
     Img[i].save(''+dir_path+'\\PopArt\\Resized Images\\resized_image'+str(i)+'.png') 


    Img1=[None]*9 
    pixels1=[None]*9 
    Imaz=Image.new("RGB",(basewidth*3,hsize*3)) 
    pixels=Imaz.load() 
    for i in range(9): 
     Img1[i]=Image.open(''+dir_path+'\\PopArt\\Resized Images\\resized_image'+str(i)+'.png') 
     pixels1[i]=Img1[i].load() 


    for x in range(0,basewidth): 
     for y in range(0,hsize): 
      pixels[x,y]=pixels1[0][x,y] 
     for y in range(hsize,hsize*2): 
      pixels[x,y]=pixels1[1][x,y-hsize] 
     for y in range(hsize*2,hsize*3): 
      pixels[x,y]=pixels1[2][x,y-hsize*2] 

    for x in range(basewidth,basewidth*2): 
     for y in range(0,hsize): 
      pixels[x,y]=pixels1[3][x-basewidth,y] 
     for y in range(hsize,hsize*2): 
      pixels[x,y]=pixels1[4][x-basewidth,y-hsize] 
     for y in range(hsize*2,hsize*3): 
      pixels[x,y]=pixels1[5][x-basewidth,y-hsize*2] 

    for x in range(basewidth*2,basewidth*3): 
     for y in range(0,hsize): 
      pixels[x,y]=pixels1[6][x-basewidth*2,y] 
     for y in range(hsize,hsize*2): 
      pixels[x,y]=pixels1[7][x-basewidth*2,y-hsize] 
     for y in range(hsize*2,hsize*3): 
      pixels[x,y]=pixels1[8][x-basewidth*2,y-hsize*2] 
    Imaz = Imaz.resize((size[0] , size[1]), PIL.Image.ANTIALIAS) 
    Imaz.save(""+dir_path+"\\PopArt\\Result Image\\result.png") 


def usepop(): 
    im2 = ImageTk.PhotoImage(file=""+dir_path+"\\Requirements\\traitement.png") 
    main.image = im2 
    I2 = Tkinter.Label(main, image=im2) 
    I2.grid(row=0, column=4, columnspan =4) 
    I2.update_idletasks() 
    pop_art(a, None, coef=4) 
    im2 = ImageTk.PhotoImage(file=""+dir_path+"\\PopArt\\Result Image\\result.png") 
    main.image = im2 
    I2 = Tkinter.Label(main, image=im2) 
    I2.grid(row=0, column=4, columnspan =4) 

def change_contrast(level): 

    img = Image.open(a) 
    img.load() 

    factor = (259 * (level+255))/(255 * (259-level)) 
    for x in range(img.size[0]): 
     for y in range(img.size[1]): 
      color = img.getpixel((x, y)) 
      new_color = tuple(int(factor * (c-128) + 128) for c in color) 
      img.putpixel((x, y), new_color) 

    return img 

def use_contrast(): 
    result = change_contrast(S2.get()) 
    result.save(""+dir_path+"\\Requirements\\ImageMod.png") 
    im2 = ImageTk.PhotoImage(file=""+dir_path+"\\Requirements\\ImageMod.png") 
    main.image = im2 
    I2 = Tkinter.Label(main, image=im2) 
    I2.grid(row=0, column=4, columnspan =4) 

def recherche_contours(): 
    Ima2=Image.new("RGB",(z[0],z[1])) 
    px=Ima1.load() 
    px1=Ima2.load() 
    for x in range(z[0]): 
     for y in range(z[1]): 
      p=px[x,y] 
      if type(p)==int: 
       p=(p,p,p) 
      o=int((p[0]+p[1]+p[2])/3) 
      px1[x,y]=(o,o,o) 
    Ima2 = Ima2.filter(ImageFilter.FIND_EDGES) 
    image = Ima2 
    if image.mode == 'RGBA': 
     r,g,b,a = image.split() 
     rgb_image = Image.merge('RGB', (r,g,b)) 

     inverted_image = PIL.ImageOps.invert(rgb_image) 

     r2,g2,b2 = inverted_image.split() 

     final_transparent_image = Image.merge('RGBA', (r2,g2,b2,a)) 

     final_transparent_image.save(""+dir_path+"\\Requirements\\ImageMod.png") 

    else: 
     inverted_image = PIL.ImageOps.invert(image) 
     inverted_image.save(""+dir_path+"\\Requirements\\ImageMod.png") 
    im2 = ImageTk.PhotoImage(file=""+dir_path+"\\Requirements\\ImageMod.png") 
    main.image = im2 
    I2 = Tkinter.Label(main, image=im2) 
    I2.grid(row=0, column=4, columnspan =4) 

main=Tk() 

main.withdraw() 
a = filedialog.askopenfilename() 
main.deiconify() 

dir_path = os.path.dirname(os.path.realpath("Test2.py")) 

main.configure(background="#a1dbcd") 
main.title("Photoshop Version.Megzari") 

Ima1=Image.open(a) 
z=Ima1.size 
nux=Image.new("RGB",(z[0],z[1])) 
nuxy=nux.load() 
for x in range(z[0]): 
    for y in range(z[1]): 
     nuxy[x,y]=(255,255,255) 
nux.save(""+dir_path+"\\Requirements\\Blank.png") 


if z>(400,400): 
    main.withdraw() 
    tkMessageBox.showinfo("Resolution Error", "The image is too big, please select a smaller one.") 
    sys.exit() 


elif z<(400,400): 
    im1 = ImageTk.PhotoImage(file=a) 
    I1 = Tkinter.Label(main, image=im1) 
    I1.grid(row=0, column=1, columnspan =3) 
    imt = ImageTk.PhotoImage(file=""+dir_path+"\\Requirements\\Blank.png") 
    T1 = Tkinter.Label(main, image=imt) 
    T1.grid(row=0, column=4, columnspan =4) 
    B1 = Tkinter.Button(main, text ="Echelle de gris", command = EchelleDeGris, fg="#a1dbcd", bg="#383a39", state=NORMAL) 
    B1.grid(padx=20, pady=20, row=1, column=0) 
    B3 = Tkinter.Button(main, text ="Appliquer Luminosité", command = Luminosite, fg="#a1dbcd", bg="#383a39") 
    B3.grid(padx=20, pady=20, row=1, column=1) 
    S1 = Scale(main, from_=0, to=254, orient=HORIZONTAL, fg="#a1dbcd", bg="#383a39", length = 200) 
    S1.grid(row=2, column=1) 
    B2 = Tkinter.Button(main, text ="Supprimer Image", command = SupprimerImage, fg="#a1dbcd", bg="#383a39") 
    B2.grid(padx=20, pady=20, row=1, column=7) 
    B3 = Tkinter.Button(main, text ="Annuler Modifications", command = AnnulerModifications, fg="#a1dbcd", bg="#383a39") 
    B3.grid(padx=20, pady=20, row=1, column=6) 
    B4 = Tkinter.Button(main, text ="Pop Art", command = usepop, fg="#a1dbcd", bg="#383a39") 
    B4.grid(padx=20, pady=20, row=1, column=3) 
    S2 = Scale(main, from_=-258, to=258, orient=HORIZONTAL, fg="#a1dbcd", bg="#383a39", length = 200) 
    S2.grid(row=2, column=4) 
    B4 = Tkinter.Button(main, text ="Appliquer Contraste", command = use_contrast, fg="#a1dbcd", bg="#383a39") 
    B4.grid(padx=20, pady=20, row=1, column=4) 
    B5 = Tkinter.Button(main, text ="Trouver Contours", command = recherche_contours, fg="#a1dbcd", bg="#383a39") 
    B5.grid(padx=20, pady=20, row=1, column=5) 

    s=S1.get() 
    s2=S2.get() 





main.mainloop() 

EDIT: я попытался с помощью:

if type(color)==int: 
    color=(color,color,color) 

, и это потребовало от меня целого числа на new_color

Answer 1

Поскольку никто не мог ответить на этот простой вопрос, я узнал себя после нескольких тестов и маневров. На самом деле, все, что мне нужно было сделать, это проверить type() от color. Если это int, я делаю color кортеж. Вы можете сделать это, либо присвоив: color=(color,color,color), либо сделав его таким же образом: color=[color,color,color] или color=[color]*3, затем сделав его кортежем: color=tuple(color). Так как new_color будет теперь кортежем, его все еще 3 одинаковых значения, но img.putpixel((x, y), new_color) требует целое число, поэтому вы просто извлекаете первое значение new_color, записывая new_color=new_color[0]. Если type() из color не является int, вы просто запускаете другой фрагмент кода без каких-либо изменений. Вот рабочий код одного выше:

def change_contrast(level): 

    img = Image.open(a) 
    img.load() 

    factor = (259 * (level+255))/(255 * (259-level)) 
    for x in range(img.size[0]): 
     for y in range(img.size[1]): 
      color = img.getpixel((x, y)) 
      if type(color) == int: 
       color=(color,color,color) 
       new_color = tuple(int(factor * (c-128) + 128) for c in color) 
       new_color = new_color[0] 
       img.putpixel((x, y), new_color) 
      elif type(color) != int: 
       new_color = tuple(int(factor * (c-128) + 128) for c in color) 
       img.putpixel((x, y), new_color) 
    return img 

Answer 2

Из documentation:

.getpixel(xy)

Returns the pixel value or values at the given coordinates. For single-band images, returns a single number; a sequence of pixel values is returned for multi-band images. For example, if the top left pixel of an image im of mode "L" has value 128, then im.getpixel((0,0)) returns 128.

Таким образом, он может вернуть одно значение или кортеж. Если это одно значение, вы получите ошибку not iterable. Это означает, что вам нужно проверить, что вы получаете от звонка.