"numpy.float 64" tkinter 中的对象不可调用错误。我该如何解决这个错误？

Question

我正在尝试提取在 tkinter GUI 中放置在标签中的图像的蒙版区域像素坐标。然而，我第一次运行代码时，它工作正常，但是当我第二次运行时，它抛出了一个错误。这是我的代码，我还在下面添加了我的例外。感谢您阅读。祝你有美好的一天！

#Mask image and retrieve coordinates of the mask
from tkinter import *
import tkinter
import numpy as np
import cv2
import sys
import PIL.Image as imge
import PIL.ImageTk as imtk

curPth = sys.path[0]
imgPth = curPth+'/Img_GUI.png'
tmpPth = curPth+'/temp.png'

ev = None
thikness = 25



def click(event):
    global ev, back,  cropped, y,Y, x,X, mask, out
    if ev == None:
        ev = event
        return None

    im = cv2.imread(imgPth)
    mask = cv2.cvtColor(im.copy()*0, cv2.COLOR_BGR2GRAY)
    cv2.line(mask, pt1=(ev.x, ev.y), pt2=(event.x, event.y),
    color=(255, 0, 0), thickness=thikness)
    mask = cv2.threshold(mask, 127, 255, cv2.THRESH_BINARY)[1]
    out = im.copy()
    out[np.where(mask == 0)] = 255

    out = cv2.cvtColor(out, cv2.COLOR_BGR2RGB)
    back = imtk.PhotoImage(image=imge.fromarray(out))
    lbl.config(image=back)

    x, X = min(ev.x, event.x)-thikness//2, max(ev.x, event.x)+thikness//2
    y, Y = min(ev.y, event.y)-thikness//2, max(ev.y, event.y)+thikness//2
    cropped = mask[y:Y, x:X]

    print(cropped, cropped.shape)

    ev = event
    print(x, y, X, Y)


root = Tk()
back = PhotoImage(file=imgPth)
lbl = Label(root, image=back)
lbl.place(x=0, y=0)
root.bind('<Button-1>', lambda event: click(event))
root.mainloop()

我的错误是这样的

Exception in Tkinter callback
Traceback (most recent call last):
File "C:\Users\aravi\anaconda3\lib\tkinter\__init__.py", line 1883, in __call__
  return self.func(*args)
File "<ipython-input-7-e0e6e9918250>", line 53, in <lambda>
  root.bind('<Button-1>', lambda event: click(event))
File "<ipython-input-7-e0e6e9918250>", line 39, in click
  x, X = min(ev.x, event.x)-thikness//2, max(ev.x, event.x)+thikness//2
TypeError: 'numpy.float64' object is not callable

Answer 1

我的具体错误是由于我在 jupyter notebook 的另一个单元格中使用了最小值、最大值，导致这段代码混淆了从哪个最小值中选择，正如@acw1668 在评论中所说。但是，如本 article 中所述，如果未正确使用算术运算符，也会出现此错误。

"numpy.float 64" tkinter 中的对象不可调用错误。我该如何解决这个错误？

"numpy.float 64" object is not callable error in tkinter. How can I solve this error?

python

floating-point

events

numpy

tkinter