Creating a gui instead figure - python-3.x

Question

First time posting here.
I need to create GUI that will upload video from my webcam and zoom in specific part of the video.
My code works for zooming but instead a Gui, it creates a figure.
import matplotlib.pyplot as plt
import matplotlib.animation as animation
import tkinter as tk
from tkinter import *
from tkinter import ttk
import cv2
boxSize = 150
enlargeBy = 3
def getBoxCoordinates(cap, size):
width = cap.get(3)
height = cap.get(4)
x1 = int(width / 2) - int(size / 2)
y1 = int(height / 2) - int(size / 2)
x2 = int(width / 2) + int(size / 2)
y2 = int(height / 2) + int(size / 2)
return [(x1, y1), (x2, y2)]
def getBox(cap, boxSize, frame, enlargeBy):
[(x1, y1), (x2, y2)] = getBoxCoordinates(cap, boxSize);
# Get pixels in box
box_img = frame[y1 + 1:y2, x1 + 1:x2] # +1 cuz it excludes initial
pixel interval
return cv2.resize(box_img, None, fx=enlargeBy, fy=enlargeBy,
interpolation=cv2.INTER_LINEAR) # different
interpolation methods
cap = cv2.VideoCapture(0);
ret, frame = cap.read()
figWidth = 20
figHeight = 8
fig = plt.Figure(figsize=(figWidth, figHeight))
enlarged = getBox(cap, boxSize, frame, enlargeBy)
[(x1, y1), (x2, y2)] = getBoxCoordinates(cap, boxSize);
#cv2.rectangle(frame, (x1, y1), (x2, y2), (0, 0, 255), lineType=1)
video_plot = plt.subplot2grid((figHeight, figWidth), (0, 0), colspan=4,
rowspan=4)
video_plot.axis('off')
video_plot.set_title("Camera feed")
video = video_plot.imshow(cv2.cvtColor(frame, cv2.COLOR_BGR2RGB))
rectangle = plt.Rectangle((x1,y1), x2-x1, y2-y1, edgecolor="gold",
fill=False)
video_plot.add_patch(rectangle)
def updatefig(i):
ret, frame = cap.read()
video.set_data(cv2.cvtColor(frame, cv2.COLOR_BGR2RGB))
return [video]
ani = animation.FuncAnimation(fig, updatefig, interval=20, frames=200,
blit=True)
plt.tight_layout()
plt.show()
cv2.destroyAllWindows()
plt.show()