[Tkinter] Overlay Still Image on Webcam Video

[Yoriz]

You could try adding a self.overlay_img = None to the init

class App:
    def __init__(self, video_source=0):
        self.overlay_img = None

Changing overlay to

    def overlay(self):
        file = filedialog.askopenfile(
            mode='rb', defaultextension='.png',title="Choose Overlay Image", filetypes=[("PNG Files", '*.png')])
        if file:
            self.overlay_img = ImageTk.PhotoImage(file=file)

and update to

    def update(self):
        isTrue, frame = self.vid.getFrame()
 
        if isTrue:
            self.photo = ImageTk.PhotoImage(image=Image.fromarray(frame))
            self.canvas.tag_lower(self.photo)
            self.canvas.create_image(0, 0, image=self.photo, anchor=NW)

        if self.overlay_img:
            self.canvas.tag_raise(self.overlay_img)
            self.canvas.create_image(0, 0, image=self.overlay_img, anchor=NW)
 
        self.window.after(15, self.update)