同时显示TkInter和OpenCV窗口 [英] Displaying TkInter and OpenCV windows on the same time

问题描述

我正在努力扩展

I am working to extend this solution given to me previously.

用户可以使用鼠标在TkInter Canvas小部件上随机绘制，然后在OpenCV窗口上绘制具有相同像素坐标的相同曲线.

The user can draw randomly using the mouse on a TkInter Canvas widget, after that, the same curves with the same pixels coordinates are drawn on the OpenCV window.

我想修改该解决方案，以便必须同时显示TkInter画布和OpenCV窗口:每次用户在TkInter上完成绘制一条曲线时，它都会立即在OpenCV窗口上重新绘制.

I want to modify that solution so that the TkInter Canvas and the OpenCV window must be shown in the same time: each time the suer finishes drawing one curve on TkInter it is immediately redrawn on the OpenCV window.

有没有办法实现这个目标?

Is there a way to fulfill this goal ?

在此先感谢您的帮助.

推荐答案

可以说，这比以后在OpenCV中绘制所有线要容易得多.

This is arguably even easier to do than to draw all lines in OpenCV later.

我将使MaClasse类仅生成空白图像，打开一个窗口并在启动时显示它，并为其提供一种绘制单行并再次显示图像的方法，然后可以创建一个 Test中的>对象，并且每次在Tkinter中绘制一条线时都在OpenCV中绘制一条线.这样，您甚至不需要保存所有绘制的线条(可以完全删除self.liste).

I'd make the MaClasse class only make a blank image, open a window and show it on initiation, and give it a method to draw a single line and show the image again.Then you can create a MaClasse object in Test and draw a line in OpenCV each time you draw a line in Tkinter. Then you won't even need to save all lines you've drawn (you can completely remove self.liste).

from Tkinter import *
import numpy as np
import cv2

class Test:
    def __init__(self):
        self.b1="up"
        self.xold=None
        self.yold=None
        self.liste=[]
        self.maclasse = MaClasse()
    def test(self,obj):
        self.drawingArea=Canvas(obj)
        self.drawingArea.pack() 
        self.drawingArea.bind("<Motion>",self.motion)
        self.drawingArea.bind("<ButtonPress-1>",self.b1down)
        self.drawingArea.bind("<ButtonRelease-1>",self.b1up)
    def b1down(self,event):
        self.b1="down"
    def b1up(self,event):
        self.b1="up"
        self.xold=None
        self.yold=None
        self.liste.append((self.xold,self.yold))
    def motion(self,event):
        if self.b1=="down":
            if self.xold is not None and self.yold is not None:
                event.widget.create_line(self.xold,self.yold,event.x,event.y,fill="red",width=3,smooth=TRUE)
                self.maclasse.dessiner_ligne(self.xold,self.yold,event.x,event.y)
            self.xold=event.x
            self.yold=event.y
            self.liste.append((self.xold,self.yold))

class MaClasse:
    def __init__(self):   
        self.s=600,600,3
        self.ma=np.zeros(self.s,dtype=np.uint8)
        cv2.namedWindow("OpenCV",cv2.WINDOW_AUTOSIZE)
        cv2.imshow("OpenCV",self.ma)

    def dessiner_ligne(self, xold, yold, x, y):
        cv2.line(self.ma,(xold, yold),(x,y),[255,255,255],2)
        cv2.imshow("OpenCV",self.ma)

if __name__=="__main__":
    root = Tk()
    root.wm_title("Test")
    v = Test()
    v.test(root)
    root.mainloop()

---

由于以上使用Tkinter窗口和OpenCV窗口的代码对您不起作用，因此您也可以在Tkinter顶级窗口中显示OpenCV图像.

---

Since the above code using a Tkinter window and a OpenCV window does not work for you, you could also show the OpenCV image in a Tkinter Toplevel window.

from Tkinter import *
import numpy as np
import cv2
import Image, ImageTk

class Test:
    def __init__(self, parent):
        self.parent = parent
        self.b1="up"
        self.xold=None
        self.yold=None
        self.liste=[]
        self.maclasse = MaClasse(self.parent)
    def test(self):
        self.drawingArea=Canvas(self.parent)
        self.drawingArea.pack() 
        self.drawingArea.bind("<Motion>",self.motion)
        self.drawingArea.bind("<ButtonPress-1>",self.b1down)
        self.drawingArea.bind("<ButtonRelease-1>",self.b1up)
    def b1down(self,event):
        self.b1="down"
    def b1up(self,event):
        self.b1="up"
        self.xold=None
        self.yold=None
        self.liste.append((self.xold,self.yold))
    def motion(self,event):
        if self.b1=="down":
            if self.xold is not None and self.yold is not None:
                event.widget.create_line(self.xold,self.yold,event.x,event.y,fill="red",width=3,smooth=TRUE)
                self.maclasse.dessiner_ligne(self.xold,self.yold,event.x,event.y)
            self.xold=event.x
            self.yold=event.y
            self.liste.append((self.xold,self.yold))

class MaClasse:
    def __init__(self, parent):   
        self.s=600,600,3
        self.ma=np.zeros(self.s,dtype=np.uint8)
        self.top = Toplevel(parent)
        self.top.wm_title("OpenCV Image")
        self.label = Label(self.top)
        self.label.pack()
        self.show_image()

    def dessiner_ligne(self, xold, yold, x, y):
        cv2.line(self.ma,(xold, yold),(x,y),[255,255,255],2)
        self.show_image()

    def show_image(self):
        self.im = Image.fromarray(self.ma)
        self.imgtk = ImageTk.PhotoImage(image=self.im)
        self.label.config(image=self.imgtk)


if __name__=="__main__":
    root = Tk()
    root.wm_title("Test")
    v = Test(root)
    v.test()
    root.mainloop()

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