【发布时间】：2017-02-03 09:10:26
【问题描述】：
我有一个图像处理程序。该程序本身运行良好，但是当我更改台式机或笔记本电脑（全部在 Windows 7 上）我正在使用它时，它有时会随机显示：
Traceback (most recent call last):
File "P:\ISN\Projets\Traitement image\Test 2.py", line 152, in <module>
im1 = Tkinter.PhotoImage(file=a)
File "C:\Program Files\EduPython\App\lib\tkinter\__init__.py", line 3287, in __init__
Image.__init__(self, 'photo', name, cnf, master, **kw)
File "C:\Program Files\EduPython\App\lib\tkinter\__init__.py", line 3243, in __init__
self.tk.call(('image', 'create', imgtype, name,) + options)
_tkinter.TclError: couldn't recognize data in image file "P:/ISN/Projets/Traitement image/Images/obama.png"
如您所见，图像格式为.png。我正在使用 PIL，因此应该支持 png 图像，并且我的图像文件没有损坏。我一直在使用它们，它们工作正常。但这是随机发生的，我担心在我必须展示我的程序的那一天，它会在我身上崩溃。 这是我的代码：
from tkinter import*
import tkinter as Tkinter
from tkinter import filedialog, DISABLED, messagebox as tkMessageBox
import os
import ntpath
from PIL import Image
from collections import Counter
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]
o=int((p[0]+p[1]+p[2])/3)
px1[x,y]=(o,o,o)
Ima2.save("ImageMod.png")
im2 = PhotoImage(file="ImageMod.png")
main.image = im2
I2 = Tkinter.Label(main, image=im2)
I2.grid(row=0, column=3, rowspan =6)
def SupprimerImage():
I2 = Tkinter.Label(main, image=imt)
I2.grid(row=0, column=3, rowspan =6)
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]
px1[x,y]=(p[0]+S1.get(),p[1]+S1.get(),p[2]+S1.get())
Ima2.save("ImageMod.png")
im2 = PhotoImage(file="ImageMod.png")
main.image = im2
I2 = Tkinter.Label(main, image=im2)
I2.grid(row=0, column=3, rowspan =6)
def AnnulerModifications():
I2 = Tkinter.Label(main, image=im1)
I2.grid(row=0, column=3, rowspan =6)
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): # coef is integer value, meant how deep filtering would be (for example, coef=4)
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): # this should be done using PIL palletes and converting to exact pallete at first,
# but now I omit this for my quick test
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] = (255, 0, 0) # you also need care about guarantee correct PIL pallete format here (omitted)
elif 85 < average_color <= 170:
pixels_mod[x, y] = (0, 255, 0)
elif average_color > 170:
pixels_mod[x, y] = (0, 0, 255)
for _ in range(coef):
filter_art(pixels_mod, size)
image_mod.save(path_mod)
def usepop():
pop_art(a, 'result.png', coef=4)
im2 = PhotoImage(file="result.png")
main.image = im2
I2 = Tkinter.Label(main, image=im2)
I2.grid(row=0, column=3, rowspan =6)
main=Tk()
main.withdraw()
currdir = os.getcwd()
a = filedialog.askopenfilename()
main.deiconify()
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("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 = Tkinter.PhotoImage(file=a)
I1 = Tkinter.Label(main, image=im1)
I1.grid(padx=20, pady=20, row=0, column=1, rowspan =6)
imt = Tkinter.PhotoImage(file="Blank.png")
T1 = Tkinter.Label(main, image=imt)
T1.grid(padx=20, pady=20, row=0, column=3, rowspan =6)
B1 = Tkinter.Button(main, text ="Echelle de gris", command = EchelleDeGris, fg="#a1dbcd", bg="#383a39", state=NORMAL)
B1.grid(padx=20, pady=20, row=0, column=2)
B3 = Tkinter.Button(main, text ="Appliquer Luminosité", command = Luminosite, fg="#a1dbcd", bg="#383a39")
B3.grid(padx=20, pady=20, row=2, column=2)
S1 = Scale(main, from_=0, to=254, orient=HORIZONTAL, fg="#a1dbcd", bg="#383a39", length = 200)
S1.grid(row=1, column=2)
B2 = Tkinter.Button(main, text ="Supprimer Image", command = SupprimerImage, fg="#a1dbcd", bg="#383a39")
B2.grid(padx=20, pady=20, row=4, column=2)
B3 = Tkinter.Button(main, text ="Annuler Modifications", command = AnnulerModifications, fg="#a1dbcd", bg="#383a39")
B3.grid(padx=20, pady=20, row=3, column=2)
B4 = Tkinter.Button(main, text ="Pop Art", command = usepop, fg="#a1dbcd", bg="#383a39")
B4.grid(padx=20, pady=20, row=5, column=2)
s=S1.get()
main.mainloop()
【问题讨论】：
-
您使用来自不支持
png的tkinter模块的标准PhotoImage。你必须使用模块PIL中的ImageTk.PhotoImage -
但我不明白它是否不支持为什么它可以工作，有时它不支持？我将使用此修复程序，但我想了解它为什么会这样？
-
你必须检查图像 - 也许你有扩展名为 .png 的 GIF 或者更新的 tkinter 可以处理一些 png 但不是所有类型。
标签： python python-3.x tkinter python-imaging-library