Python 用 OpenCV 读取图像并用 Tkinter 显示
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Read an image with OpenCV and display it with Tkinter
提问by
I have a very simple program on Ubuntu 14.04 LTS to read and display an image using OpenCV:
我在 Ubuntu 14.04 LTS 上有一个非常简单的程序来使用 OpenCV 读取和显示图像：
import cv2 #import OpenCV
img = cv2.imread('picture.jpg') #read a picture using OpenCV
cv2.imshow('image',img) # Display the picture
cv2.waitKey(0) # wait for closing
cv2.destroyAllWindows() # Ok, destroy the window
My problem:
我的问题：
How can I keep reading the picture in OpenCV but display it using Tkinter ?
如何继续在 OpenCV 中阅读图片但使用 Tkinter 显示它？
I ask this because I want to make an interface for my program but OpenCV is not able to do it so I need Tkinter for this. However, all the image processing I must do it on the background using OpenCV. Only displaying the results must be done using Tkinter.
我问这个是因为我想为我的程序制作一个接口，但 OpenCV 无法做到这一点，所以我需要 Tkinter。但是，我必须使用 OpenCV 在后台进行所有图像处理。必须使用 Tkinter 仅显示结果。
EDIT:
编辑：
From the answer above, I change the line:
从上面的答案，我改变了这一行：
im = Image.open('slice001.hrs').convert2byte()
To:
到：
im=cv2.imread() # (I imported cv2)
But I got an error.
但我有一个错误。
I would appreciate any hints.
我将不胜感激任何提示。
采纳答案by Ha Dang
You might want to take a look at this one. Here is something works for me:
你可能想看看这个。这是对我有用的东西：
import numpy as np
import cv2
import Tkinter
import Image, ImageTk
# Load an color image
img = cv2.imread('img.png')
#Rearrang the color channel
b,g,r = cv2.split(img)
img = cv2.merge((r,g,b))
# A root window for displaying objects
root = Tkinter.Tk()
# Convert the Image object into a TkPhoto object
im = Image.fromarray(img)
imgtk = ImageTk.PhotoImage(image=im)
# Put it in the display window
Tkinter.Label(root, image=imgtk).pack()
root.mainloop() # Start the GUI
回答by lony
For Python3 I had to modify @Ha Dang answer:
对于 Python3，我必须修改 @Ha Dang 答案：
from tkinter import *
from PIL import Image, ImageTk
import cv2
import numpy as np
image_name = 'bla.jpg'
image = cv2.imread(image_name)
#Rearrang the color channel
b,g,r = cv2.split(image)
img = cv2.merge((r,g,b))
# A root window for displaying objects
root = Tk()
# Convert the Image object into a TkPhoto object
im = Image.fromarray(img)
imgtk = ImageTk.PhotoImage(image=im)
# Put it in the display window
Label(root, image=imgtk).pack()
root.mainloop() # Start the GUI
Requirements were:
要求是：
pip3
pip3
numpy==1.13.1
opencv-python==3.3.0.9
Pillow==4.2.1
brew
酿造
python3
tcl-tk
回答by Jop Knoppers
For me both answers above did not work but where close. The following code did the trick for me (I also want to use place instead of pack):
对我来说，上面的两个答案都不起作用，但很接近。以下代码对我有用（我也想使用 place 而不是 pack）：
image = cv2.cvtColor(self.image, cv2.COLOR_BGR2RGB)
image = ImageTk.PhotoImage(image=Image.fromarray(image))
label_image = Label(self.detection, image=image)
label_image.image = image
label_image.place(x=0, y=0, anchor="w")
