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import cv

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import opencv

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import Tkinter as tk
from PIL import Image, ImageTk
import time
import cv

TITLE = "Capture Cam"
UPDATE_TIME = 50
WIDTH = 640
HEIGHT = 480
TIME_FORMAT = "%m\%d\%Y_%H:%M:%S"
IMAGE_EXT = ".jpeg"
SAVE_IMAGE_TEXT = "cam_"

class Cam(tk.Label):
    def __init__(self, root, width, height):
        tk.Label.__init__(self, root)
        self.width = width
        self.height = height
        self.root = root
        self.camera = cv.CaptureFromCAM(1)
    
    def run(self):
        self.image = Image.fromstring("RGB", (self.width, self.height), 
            cv.QueryFrame(self.camera).tostring(), "raw", "BGR" )
        self.tk_image = ImageTk.PhotoImage(image = self.image)
        self.config(image = self.tk_image)
        self.root.after(UPDATE_TIME, self.run)
       
    def save_image(self):
        self.image.save("%s%s%s%s" %("/home/kaytec/Dokumente/images/", 
            SAVE_IMAGE_TEXT, time.strftime(TIME_FORMAT), IMAGE_EXT))

if __name__ == '__main__':
    root = tk.Tk()
    cam = Cam(root, WIDTH, HEIGHT)
    cam.pack()
    cam.run()
    tk.Button(root, text = "Save Image", command = cam.save_image).pack()
    root.title(TITLE)
    root.mainloop()