python tkinter 打开摄像头并解决闪烁问题（python基础教程）

python tkinter 打开摄像头并解决闪烁问题（python基础教程）

from tkinter import *from PIL import Image,ImageTkfrom tkinter import ttkimport osimport platformimport cv2import threading capture = cv2.VideoCapture(0) def loopCapture(): global capture global imgCanvas global win # imgpath = "./" # image = "50618close.jpg" abc=None while(True): _,frame= capture.read() # cv2.imshow("org",frame) cov= cv2.cvtColor(frame,cv2.COLOR_RGB2BGR) #初始图像是RGB格式，转换成BGR即可正常显示了 img =Image.fromarray(cov) img =ImageTk.PhotoImage(img) imgCanvas.create_image(0,0,anchor='nw',image=img) abc = None abc = img # 解决摄像头图像闪烁的问题.. def toggle_fullscreen(self, event=None): win.attributes("-fullscreen", True) def end_fullscreen(self, event=None): win.attributes("-fullscreen", False) def createUI(): global imgCanvas global win global frame1 global tree global label_speed win = Tk() win.title("***系统") # win.geometry("1920x1080") sysstr = platform.system() w = win.winfo_screenwidth() h = win.winfo_screenheight() win.geometry("%dx%d" %(w,h)) # win.attributes("-topmost",True) # win.attributes('-fullscreen', True) win.configure(bg="#fff") win.bind("", toggle_fullscreen) win.bind("", end_fullscreen) imgCanvas = Canvas(win,height=int(h * 0.8),width=w ) imgCanvas.pack(side='top', fill='x') win.mainloop() t=threading.Thread(target=loopCapture)t.setDaemon(True)t.start()createUI()

解决摄像头图像闪烁的问题 主要起作用的就是 abc = img 这句话, 变量名其实无所谓的. 只要加这么一句话就可以了.

这句话的作用应该是起到了图片对象延迟销毁的作用.

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