以下代码在tkinter窗口中播放给定的视频文件:
from tkinter import *
from PIL import ImageTk, Image
import cv2
root = Tk()
main_label = Label(root)
main_label.grid()
# Capture from camera
cap = cv2.VideoCapture("video.mp4")
# function for video streaming
def video_stream():
ret, frame = cap.read()
cv2image = cv2.cvtColor(frame, cv2.COLOR_BGR2RGBA)
img = Image.fromarray(cv2image)
tk_img = ImageTk.PhotoImage(image=img)
main_label.configure(image=tk_img)
main_label.tk_img = tk_img
main_label.after(20, video_stream)
video_stream()
root.mainloop()
我的问题是如何调整以500 x 500分辨率播放的视频的大小?
首先,我想提一个可能的问题。
始终检查frame
退货是否。否则您的应用程序将崩溃。
ret, frame = cap.read()
if ret:
cv2image = cv2.cvtColor(frame, cv2.COLOR_BGR2RGBA)
现在resize
你的框架
# function for video streaming
ret, frame = cap.read()
if ret:
cv2image = cv2.cvtColor(frame, cv2.COLOR_BGR2RGBA)
cv2image = cv2.resize(cv2image, (500, 500))
正确的代码:
from tkinter import *
from PIL import ImageTk, Image
import cv2
root = Tk()
main_label = Label(root)
main_label.grid()
# Capture from camera
cap = cv2.VideoCapture("video.mp4")
# function for video streaming
def video_stream():
ret, frame = cap.read()
if ret:
cv2image = cv2.cvtColor(frame, cv2.COLOR_BGR2RGBA)
cv2image = cv2.resize(cv2image, (500, 500))
img = Image.fromarray(cv2image)
tk_img = ImageTk.PhotoImage(image=img)
main_label.configure(image=tk_img)
main_label.tk_img = tk_img
main_label.after(20, video_stream)
video_stream()
root.mainloop()
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