質問編集履歴
6
追記
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# 追記2
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teamikl様からのコメントの指摘をもとに変更
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- リサイズ時に消えてしまう。
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```Python
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@@ -254,6 +248,10 @@
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import cv2
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import queue
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import threading
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import tkinter as tk
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@@ -272,10 +270,18 @@
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self.data_queue = queue.Queue()
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self.win = win
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self.win.title("Camera")
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self.thread = threading.Thread(target=self.get_queue)
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self.thread.start()
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self.disp_center(self.win, 720, 480)
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self.win.protocol("WM_DELETE_WINDOW", self.close)
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def disp_center(self, win, wx=400, wy=300):
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#win.resizable(0, 0)
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def close(self):
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self.data_queue.put(["close", None])
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self.thread.join()
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self.win.destroy()
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self.vcap.release()
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def create_view(self):
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self.win.rowconfigure(0, weight=1)
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_, fr
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_, frm = self.vcap.read()
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frame = cv2.cvtColor(fr
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self.frame = cv2.cvtColor(frm, cv2.COLOR_BGR2RGB)
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self.photo = ImageTk.PhotoImage(image = Image.fromarray(frame))
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self.photo = ImageTk.PhotoImage(image = Image.fromarray(self.frame))
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#self.canvas.update()
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cv_w = self.canvas.winfo_reqwidth()
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cv_h = self.canvas.winfo_reqheight()
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self.img_id = self.canvas.create_image(cv_w // 2, cv_h // 2, image=self.photo)
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self.img_id = self.canvas.create_image(cv_w // 2, cv_h // 2, image=self.photo, anchor="center")
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def pushed_button(self):
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_, frame = self.vcap.read()
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self.data_queue.put(["snapshot", None])
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print(frame)
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cv2.imwrite( "Desktop/frame-" + datetime.now().strftime("%Y-%d-%m-%H-%M-%S") + ".jpg",
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cv2.cvtColor( frame, cv2.COLOR_BGR2RGB ) )
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@@ -418,11 +430,11 @@
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def update_by_timer(self):
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_, fr
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_, frm = self.vcap.read()
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frame = cv2.cvtColor(fr
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self.frame = cv2.cvtColor(frm, cv2.COLOR_BGR2RGB)
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self.photo = ImageTk.PhotoImage(image = Image.fromarray(frame))
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self.photo = ImageTk.PhotoImage(image = Image.fromarray(self.frame))
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self.canvas.itemconfig(self.img_id, image=self.photo)
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def update_by_resize(self, e):
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_, frame = self.vcap.read()
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frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
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self.photo = ImageTk.PhotoImage(image = Image.fromarray(frame))
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self.canvas.itemconfig(self.img_id, image=self.photo)
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self.canvas.itemconfig(self.img_id, image=self.photo, anchor="center")
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cv_w = self.canvas.winfo_
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cv_w = self.canvas.winfo_width()
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cv_h = self.canvas.winfo_
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cv_h = self.canvas.winfo_height()
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print(datetime.now())
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print(cv_w, cv_h)
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self.canvas.
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self.canvas.coords(self.img_id, cv_w // 2, cv_h // 2)
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def get_queue(self):
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while True:
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msg, data = self.data_queue.get()
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if msg == "snapshot":
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self.snapshot()
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elif msg == "close":
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break
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else:
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print("Undefined msg")
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def snapshot(self):
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filename = "C:/Users/user01/Desktop/img/frame-" + datetime.now().strftime("%Y-%d-%m-%H-%M-%S_%f") + ".jpg"
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cv2.imwrite( filename,
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cv2.cvtColor( self.frame, cv2.COLOR_BGR2RGB ) )
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print(filename)
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def main():
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win = tk.Tk()
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5
文法修正
test
CHANGED
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File without changes
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test
CHANGED
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@@ -236,7 +236,11 @@
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# 追記2
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- ウィンドウが720x480の時、映像が右寄りに描画
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-
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- リサイズ時に消えてしまう。
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4
文法修正
test
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test
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# 追記2
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映像が
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映像が右寄りに描画、リサイズ時に消えてしまう。
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3
追記
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映像が右下寄りに描画されてしまう。
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# 追記2
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映像が左寄りに描画、リサイズ時に消えてしまう。
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```Python
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from datetime import datetime
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from PIL import Image, ImageTk
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import cv2
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import tkinter as tk
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class App:
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def __init__(self, win):
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video_source = 0
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self.vcap = cv2.VideoCapture(video_source)
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self.width = self.vcap.get(cv2.CAP_PROP_FRAME_WIDTH)
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self.height = self.vcap.get(cv2.CAP_PROP_FRAME_HEIGHT)
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self.win = win
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self.win.title("Camera")
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self.disp_center(self.win, 720, 480)
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self.win.protocol("WM_DELETE_WINDOW", self.close)
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self.create_view()
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self.bind_event()
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self.update_by_timer()
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def disp_center(self, win, wx=400, wy=300):
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#win.resizable(0, 0)
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dx = win.winfo_screenwidth()
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dy = win.winfo_screenheight()
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win_size = str(wx) + "x" + str(wy) + \
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"+" + str(int(dx/2 - wx/2)) + "+" + str(int(dy/2 - wy/2))
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win.geometry(win_size)
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def close(self):
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self.win.destroy()
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self.vcap.release()
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def create_view(self):
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self.win.rowconfigure(0, weight=1)
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self.win.columnconfigure(0, weight=1)
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self.frame = tk.Frame(self.win, relief="sunken", bd=1)
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self.frame.grid(row=0, column=0, sticky="nsew")
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self.frame.rowconfigure(0, weight=1)
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self.frame.columnconfigure(0, weight=1)
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self.canvas = tk.Canvas(self.frame)
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self.canvas.grid(row=0, column=0, sticky="nsew", padx=10, pady=10)
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335
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_, frame = self.vcap.read()
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337
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frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
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338
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339
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self.photo = ImageTk.PhotoImage(image = Image.fromarray(frame))
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340
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341
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cv_w = self.canvas.winfo_reqwidth()
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342
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343
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cv_h = self.canvas.winfo_reqheight()
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344
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345
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self.img_id = self.canvas.create_image(cv_w // 2, cv_h // 2, image=self.photo)
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346
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347
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348
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"""
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350
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351
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self.canvas.update()
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352
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353
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cv_w = self.canvas.winfo_width()
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354
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355
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cv_h = self.canvas.winfo_height()
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356
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357
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358
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359
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rec_id = self.canvas.create_rectangle(0, 0, cv_w, cv_h, fill="black")
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360
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+
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361
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362
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363
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364
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365
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# 長方形の座標取得
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366
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367
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rec_pos = self.canvas.coords(rec_id)
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368
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+
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369
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# テキストを描画（位置は適当）
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370
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+
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371
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text_id = self.canvas.create_text(0, 0, text="NO SIGNAL", font=("", 20), fill="white")
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372
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+
|
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373
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+
# テキストのサイズ取得
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374
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+
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375
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+
text_size = self.canvas.bbox(text_id)
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|
376
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+
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377
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+
# テキストの座標移動
|
|
378
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+
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379
|
+
rc_x = rec_pos[2] / 2
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380
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+
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381
|
+
rc_y = rec_pos[2] / 3
|
|
382
|
+
|
|
383
|
+
tc_y = text_size[3] / 2
|
|
384
|
+
|
|
385
|
+
self.canvas.move(text_id, rc_x - (rec_pos[0] / 2), rc_y - tc_y)
|
|
386
|
+
|
|
387
|
+
"""
|
|
388
|
+
|
|
389
|
+
|
|
390
|
+
|
|
391
|
+
self.button = tk.Button(self.win, text="Snapshot", command=self.pushed_button)
|
|
392
|
+
|
|
393
|
+
self.button.grid(row=1, column=0, sticky="", pady=10)
|
|
394
|
+
|
|
395
|
+
|
|
396
|
+
|
|
397
|
+
|
|
398
|
+
|
|
399
|
+
def pushed_button(self):
|
|
400
|
+
|
|
401
|
+
_, frame = self.vcap.read()
|
|
402
|
+
|
|
403
|
+
frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
|
|
404
|
+
|
|
405
|
+
print(frame)
|
|
406
|
+
|
|
407
|
+
cv2.imwrite( "Desktop/frame-" + datetime.now().strftime("%Y-%d-%m-%H-%M-%S") + ".jpg",
|
|
408
|
+
|
|
409
|
+
cv2.cvtColor( frame, cv2.COLOR_BGR2RGB ) )
|
|
410
|
+
|
|
411
|
+
|
|
412
|
+
|
|
413
|
+
|
|
414
|
+
|
|
415
|
+
def update_by_timer(self):
|
|
416
|
+
|
|
417
|
+
_, frame = self.vcap.read()
|
|
418
|
+
|
|
419
|
+
frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
|
|
420
|
+
|
|
421
|
+
self.photo = ImageTk.PhotoImage(image = Image.fromarray(frame))
|
|
422
|
+
|
|
423
|
+
self.canvas.itemconfig(self.img_id, image=self.photo)
|
|
424
|
+
|
|
425
|
+
self.canvas.after(15, self.update_by_timer)
|
|
426
|
+
|
|
427
|
+
|
|
428
|
+
|
|
429
|
+
|
|
430
|
+
|
|
431
|
+
def update_by_resize(self, e):
|
|
432
|
+
|
|
433
|
+
_, frame = self.vcap.read()
|
|
434
|
+
|
|
435
|
+
frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
|
|
436
|
+
|
|
437
|
+
self.photo = ImageTk.PhotoImage(image = Image.fromarray(frame))
|
|
438
|
+
|
|
439
|
+
self.canvas.itemconfig(self.img_id, image=self.photo)
|
|
440
|
+
|
|
441
|
+
cv_w = self.canvas.winfo_reqwidth()
|
|
442
|
+
|
|
443
|
+
cv_h = self.canvas.winfo_reqheight()
|
|
444
|
+
|
|
445
|
+
self.canvas.move(self.img_id, cv_w // 2, cv_h // 2)
|
|
446
|
+
|
|
447
|
+
|
|
448
|
+
|
|
449
|
+
|
|
450
|
+
|
|
451
|
+
def bind_event(self):
|
|
452
|
+
|
|
453
|
+
self.canvas.bind("<Configure>", self.update_by_resize)
|
|
454
|
+
|
|
455
|
+
|
|
456
|
+
|
|
457
|
+
|
|
458
|
+
|
|
459
|
+
def main():
|
|
460
|
+
|
|
461
|
+
win = tk.Tk()
|
|
462
|
+
|
|
463
|
+
App(win)
|
|
464
|
+
|
|
465
|
+
win.mainloop()
|
|
466
|
+
|
|
467
|
+
|
|
468
|
+
|
|
469
|
+
if __name__ == "__main__":
|
|
470
|
+
|
|
471
|
+
main()
|
|
472
|
+
|
|
473
|
+
```
|
2
画像追加
test
CHANGED
|
File without changes
|
test
CHANGED
|
@@ -223,3 +223,11 @@
|
|
|
223
223
|
|
|
224
224
|
|
|
225
225
|
- [パソコンに接続したカメラの映像をGUIに表示する。](https://qiita.com/kotai2003/items/3d31528d56059c848458)
|
|
226
|
+
|
|
227
|
+
|
|
228
|
+
|
|
229
|
+
# 追記
|
|
230
|
+
|
|
231
|
+
映像が右下寄りに描画されてしまう。
|
|
232
|
+
|
|
233
|
+
|
1
文法修正
test
CHANGED
|
@@ -1 +1 @@
|
|
|
1
|
-
Python3 Tkinter カメラ映像の
|
|
1
|
+
Python3 Tkinter カメラ映像の描画位置と、カメラとの接続が途切れた場合の処理について
|
test
CHANGED
|
@@ -6,15 +6,15 @@
|
|
|
6
6
|
|
|
7
7
|
|
|
8
8
|
|
|
9
|
-
-
|
|
9
|
+
- 描画位置をcanvasの中央にしたいが左上に表示されてしまっている
|
|
10
10
|
|
|
11
11
|
- カメラの接続が物理的に切れた場合などの処理をどうすればいいかわからない
|
|
12
12
|
|
|
13
13
|
|
|
14
14
|
|
|
15
|
-
|
|
15
|
+
描画位置については、おそらくcreate_image()の座標設定だと思いますが、指定する座標の求め方がわかりません。
|
|
16
|
-
|
|
16
|
+
|
|
17
|
-
解像度/2をすればよいのでしょうか？
|
|
17
|
+
カメラの解像度を求めて、解像度/2をすればよいのでしょうか？
|
|
18
18
|
|
|
19
19
|
|
|
20
20
|
|