Apr-03-2017, 10:58 PM
Hey, all.
So here's my problem:
I need a GUI to get a live webcam stream from openCV (or just open a video file), pass it to the Tkinter GUI window, and add some buttons and stuff to it.
when I run the code and play the video, the video plays with proper FPS (same speed as just opening it with winows media player), however, the video window is small.
It's very important that i get the video to full screen dimentions, perhaps a tad less so I can still see the GUI button.
If i try to resize the video for full screen, by adding
self.current_image= self.current_image.resize([2560,1440],PIL.Image.ANTIALIAS), my FPS drop and video is playing very slowly.
going with self.root.attributes("-fullscreen",True) , the window just goes full screen but the video size itself is same. so that's no good either.
How can I fill the screen with the video while keeping proper FPS? is it a code error or just slow processing?
here is the code: thanks evryone
So here's my problem:
I need a GUI to get a live webcam stream from openCV (or just open a video file), pass it to the Tkinter GUI window, and add some buttons and stuff to it.
when I run the code and play the video, the video plays with proper FPS (same speed as just opening it with winows media player), however, the video window is small.
It's very important that i get the video to full screen dimentions, perhaps a tad less so I can still see the GUI button.
If i try to resize the video for full screen, by adding
self.current_image= self.current_image.resize([2560,1440],PIL.Image.ANTIALIAS), my FPS drop and video is playing very slowly.
going with self.root.attributes("-fullscreen",True) , the window just goes full screen but the video size itself is same. so that's no good either.
How can I fill the screen with the video while keeping proper FPS? is it a code error or just slow processing?
here is the code: thanks evryone
import PIL from PIL import Image, ImageTk import Tkinter as tk import argparse import datetime import cv2 import os class Application: def __init__(self, output_path = "./"): """ Initialize application which uses OpenCV + Tkinter. It displays a video stream in a Tkinter window and stores current snapshot on disk """ self.vs = cv2.VideoCapture('Kaabil Hoon (Kaabil) Hrithik Roshan (2K Ultra HD 1440p)-(HDLoft.Com).mp4') # capture video frames, 0 is your default video camera self.output_path = output_path # store output path self.current_image = None # current image from the camera self.root = tk.Tk() # initialize root window self.root.title("PyImageSearch PhotoBooth") # set window title # self.destructor function gets fired when the window is closed self.root.protocol('WM_DELETE_WINDOW', self.destructor) self.panel = tk.Label(self.root) # initialize image panel self.panel.pack(padx=10, pady=10) self.root.config(cursor="arrow") # create a button, that when pressed, will take the current frame and save it to file btn = tk.Button(self.root, text="Snapshot!", command=self.take_snapshot) btn.pack(fill="both", expand=True, padx=10, pady=10) # start a self.video_loop that constantly pools the video sensor # for the most recently read frame self.video_loop() def video_loop(self): """ Get frame from the video stream and show it in Tkinter """ ok, frame = self.vs.read() # read frame from video stream # frame = cv2.resize(frame, (1500,1000)) if ok: # frame captured without any errors key = cv2.waitKey(1000) cv2image = cv2.cvtColor(frame, cv2.COLOR_BGR2RGBA) # convert colors from BGR to RGBA self.current_image = Image.fromarray(cv2image) # convert image for PIL #self.current_image= self.current_image.resize([1280,1024],PIL.Image.ANTIALIAS) imgtk = ImageTk.PhotoImage(image=self.current_image) # convert image for tkinter self.panel.imgtk = imgtk # anchor imgtk so it does not be deleted by garbage-collector self.panel.config(image=imgtk) # show the image #self.root.attributes("-fullscreen",True) self.root.after(1, self.video_loop) # call the same function after 30 milliseconds def take_snapshot(self): """ Take snapshot and save it to the file """ ts = datetime.datetime.now() # grab the current timestamp filename = "{}.jpg".format(ts.strftime("%Y-%m-%d_%H-%M-%S")) # construct filename p = os.path.join(self.output_path, filename) # construct output path self.current_image.save(p, "JPEG") # save image as jpeg file print("[INFO] saved {}".format(filename)) def destructor(self): """ Destroy the root object and release all resources """ print("[INFO] closing...") self.root.destroy() self.vs.release() # release web camera cv2.destroyAllWindows() # it is not mandatory in this application # construct the argument parse and parse the arguments ap = argparse.ArgumentParser() ap.add_argument("-o", "--output", default="./", help="path to output directory to store snapshots (default: current folder") args = vars(ap.parse_args()) # start the app print("[INFO] starting...") pba = Application(args["output"]) pba.root.mainloop()