実現したいこと
pythonでWebsocketでjpgデータを受信してtkinter canvasに表示したい
クライアント側はUSBカメラOpenCVで毎秒、画像バイト数、jpeg画像(base64)で送信しています
サーバ側は受信したらjpeg画像をバイナリにしcanvasに表示する
前提
Websocketでデータ受信してファイルmyfile.jpgに出力しています
ファイルは正常に画像表示できています。
tk_image = ImageTk.PhotoImage(img1)
で以下のエラーメッセージが発生していると思われます。
この辺、分かる方がいれば教えてください。
発生している問題・エラーメッセージ
エラーメッセージ Exception occurred during processing of request from ('127.0.0.1', 53064) Traceback (most recent call last): File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.10_3.10.3056.0_x64__qbz5n2kfra8p0\lib\socketserver.py", line 683, in process_request_thread self.finish_request(request, client_address) File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.10_3.10.3056.0_x64__qbz5n2kfra8p0\lib\socketserver.py", line 360, in finish_request self.RequestHandlerClass(request, client_address, self) File "C:\Users\Arail\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\websocket_server\websocket_server.py", line 271, in __init__ StreamRequestHandler.__init__(self, socket, addr, server) File "C:\Program Files\WindowsApps\PythonSoftwareFoundation.Python.3.10_3.10.3056.0_x64__qbz5n2kfra8p0\lib\socketserver.py", line 747, in __init__ self.handle() File "C:\Users\Arail\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\websocket_server\websocket_server.py", line 284, in handle self.read_next_message() File "C:\Users\Arail\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\websocket_server\websocket_server.py", line 341, in read_next_message opcode_handler(self, message_bytes.decode('utf8')) File "C:\Users\Arail\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\websocket_server\websocket_server.py", line 163, in _message_received_ self.message_received(self.handler_to_client(handler), self, msg) File "E:\linux関係\TinkerBoard\pg\websocket\server2.py", line 78, in on_recieve tk_image = ImageTk.PhotoImage(img1) File "C:\Users\Arail\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\PIL\ImageTk.py", line 108, in __init__ mode = Image.getmodebase(mode) File "C:\Users\Arail\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\PIL\Image.py", line 267, in getmodebase return ImageMode.getmode(mode).basemode File "C:\Users\Arail\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\PIL\ImageMode.py", line 74, in getmode return _modes[mode] TypeError: unhashable type: 'numpy.ndarray' ---------------------------------------- Exception ignored in: <function PhotoImage.__del__ at 0x0000025706A58CA0> Traceback (most recent call last): File "C:\Users\Arail\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\PIL\ImageTk.py", line 118, in __del__ name = self.__photo.name AttributeError: 'PhotoImage' object has no attribute '_PhotoImage__photo'
該当のソースコード
python
1import tkinter as tk 2import threading 3import base64 4import io 5import numpy as np 6from PIL import Image 7from PIL import ImageTk 8from datetime import datetime 9from websocket_server import WebsocketServer 10 11class Application(tk.Frame):12 thread1 = None13 server = None14 15 def __init__(self,master):16 super().__init__(master)17 18 try:19 self.master.geometry("1024x720")20 self.master.title("WebsocketServer")21 #Frame_Camera22 self.frame_cam = tk.Frame(self.master, relief= tk.FLAT)23 self.frame_cam.place(x = 2, y = 2)24 self.frame_cam.configure(width = 640, height = 480)25 #Canvas26 self.canvas1 = tk.Canvas(self.frame_cam, bg='#000000')27 self.canvas1.configure( width= 640, height=480)28 self.canvas1.place( x=1, y=2 )29 # Close30 self.btn_close = tk.Button( self.master, text='閉じる')31 self.btn_close.configure(command=self.press_close_button )32 self.btn_close.place( x=750, y=50, width=250, height=100 )33 34 self.thread1 = threading.Thread(target = self.thread1)35 self.thread1.daemon = True36 self.thread1.start() 37 38 except Exception as e:39 print('=== エラー内容 __init__() ===')40 print('type:' + str(type(e)))41 print('e自身:' + str(e))42 43 def press_close_button(self):44 self.master.destroy()45 #websocketを終了させる46 #self.server.shutdown_gracefully()47 #self.server.shutdown_abruptly()48 self.server.shutdown()49 exit(-1)50 51 52 def thread1(self):53 try:54 self.server = WebsocketServer(port=8765, host='127.0.0.1')55 self.server.set_fn_new_client(self.new_client)56 self.server.set_fn_message_received(self.on_recieve)57 self.server.run_forever()58 59 except Exception as e:60 print('=== エラー内容 thread1() ===')61 print('type:' + str(type(e)))62 print('e自身:' + str(e))63 64 65 def new_client(self, client, server):66 server.send_message_to_all(datetime.now().isoformat() + ": new client joined!")67 68 def on_recieve(self, client, server, message):69 flen = message[:6]70 picb = base64.b64decode(message[6:])71 img1 = np.frombuffer(picb,dtype=np.uint8)72 f = open('myfile.jpg', 'wb')73 f.write(img1)74 f.close()75 tk_image = ImageTk.PhotoImage(img1)76 self.canvas1.create_image(0,0, image = tk_image)77 print(client["address"][0]+":" + str(client["address"][1]) + "から受信 : " + flen)78 79 80if __name__ == "__main__":81 root = tk.Tk()82 app = Application(master = root)83 app.mainloop()
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