跨设备python执行出错

Question

所以我有一个图像处理程序，我在Win7桌面上工作。它的功能之一是改变用户选择的图像的对比度。它在Win7台式机上运行良好，但当我将它传输到我的Win10笔记本电脑上时，它会使红色的值溢出。这是在Win10笔记本电脑上的结果：

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这是Win7桌面上的那个：

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这是更改对比的函数：

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

以下是完整的代码，以防您需要它：

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()

我不知道为什么它会给我不同的结果，这取决于我运行它的平台。

编辑:使用PIL.ImageEnhance.Contrast的代码

from PIL import Image, ImageEnhance
image = Image.open('E:\Projet Complet\Images\obama.png')
contrast = ImageEnhance.Contrast(image)
contrast_applied=contrast.enhance(1)
image.show()

在Win7上，我有Python3.2.5和PIL1.1.7，

在Win10上我使用的是Python3.4.5和PIL1.1.7

Answer 1

我设法找到了一个绕过这个问题的方法。由于我试图编写自己的对比度函数，一些版本差异最终导致了这种结果。因此，与其拥有：

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

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)

您可以使用以下代码：

def change_contrast():

    image = Image.open(a)
    scale_value=S2.get()
    contrast = ImageEnhance.Contrast(image)
    contrast_applied = contrast.enhance(scale_value)
    contrast_applied.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)

我将按钮中的函数从use_contrast替换为change_contrast。它也更短、更快。但是对于第二个代码，您必须编写from PIL import ImageEnhance