Python，使用CV:：imwrite从打开的CV保存图像-错误消息权限被拒绝[警告：0]

这是代码

第一部分是电报。第二部分日志记录和目录文件夹创建。使用CAFFE对图像进行第三部分检测。之后，我们用不同的区域标记图片。 然后我们将数据导出到MySQL。 在它之后，第208行是imwrite（你也可以看到我在我的个人目录中尝试过，但是我在那里有一个特殊的字符（C:/Users/César/），我不确定这是否是关键

import numpy as np
import argparse
import cv2
import time
import mysql.connector
import json
from datetime import datetime
from influxdb import InfluxDBClient
import ast
import os
import logging
from telegram.ext import Updater, CommandHandler, MessageHandler, Filters
import threading 

# ---------------------
# TELEGRAM Handlers
def people_total(update, context):
    update.message.reply_text('Total number of people present in store:' + str(total))

def zone_risk(update, context):
    update.message.reply_text('Risky zones due to people presence'+ label2)

def echo(update, context):
    """Echo the user message."""
    update.message.reply_text('Total number of people is:'+ label)
    # update.message.reply_text(update.message.text)

def pic(update, context):
    chat_id = update.message.chat_id        # get the recipient´s ID
    #context.bot.sendPhoto(chat_id=chat_id, photo=open(path, 'rb'))
    context.bot.sendPhoto(chat_id=chat_id, photo=open('./hall.jpg', 'rb'))

def main_telegram():
    """Start the bot."""
    # Create the Updater and pass it your bot's token.
    # Make sure to set use_context=True to use the new context based callbacks
    # Post version 12 this will no longer be necessary
    updater = Updater("xxxxx", use_context=True)

    # Get the dispatcher to register handlers
    dp = updater.dispatcher

    # on different commands - answer in Telegram
    dp.add_handler(CommandHandler("people", people_total))
    dp.add_handler(CommandHandler("risk", zone_risk))
    dp.add_handler(CommandHandler("picture", pic))

    # on noncommand i.e message - echo the message on Telegram
    dp.add_handler(MessageHandler(Filters.text & ~Filters.command, echo))

   
    # Start the Bot
    updater.start_polling()

    # Run the bot until you press Ctrl-C or the process receives SIGINT,
    # SIGTERM or SIGABRT. This should be used most of the time, since
    # start_polling() is non-blocking and will stop the bot gracefully.
#    updater.idle()
# ---------------------
# TELEGRAM Enable logging
logging.basicConfig(format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
                    level=logging.INFO)

logger = logging.getLogger(__name__)
# ---------------------
# THREADING
# threading.Thread(target=main_telegram).start() 
telegram_thread = threading.Thread(target=main_telegram, args=())
telegram_thread.start() # starts main telegram program in a separate thread
# ---------------------
# import pandas as pd

# INFLUXDB
# client = InfluxDBClient('xxxx', xx, 'xx', 'xxx', 'xxxx')
# client.create_database('TRIALDB') # Problems with DB creation
# ---------------------
# SUB-DIRECTORY CREATION
working_path = os.getcwd()
# sub_directory = "Image"
# path = os.path.join(working_path, sub_directory) 
path = working_path
os.makedirs(path, exist_ok = True)
print(path)
# ---------------------
# CAFFE construct the argument parse and parse the arguments
ap = argparse.ArgumentParser()
ap.add_argument("-i", "--image", required=True,
     help="path to input image")
ap.add_argument("-p", "--prototxt", required=True,
     help="path to Caffe 'deploy' prototxt file")
ap.add_argument("-m", "--model", required=True,
     help="path to Caffe pre-trained model")
ap.add_argument("-c", "--confidence", type=float, default=0.2,
     help="minimum probability to filter weak detections")
args = vars(ap.parse_args())
CLASSES = ["background", "aeroplane", "bicycle", "bird", "boat",
     "bottle", "bus", "car", "cat", "chair", "cow", "diningtable",
     "dog", "horse", "motorbike", "person", "pottedplant", "sheep",
     "sofa", "train", "tvmonitor"]
COLORS = np.random.uniform(0, 255, size=(len(CLASSES), 3))
print("[INFO] loading model…")
image = cv2.imread(args["image"])
net = cv2.dnn.readNetFromCaffe(args["prototxt"], args["model"])
(h, w) = image.shape[:2]
blob = cv2.dnn.blobFromImage(cv2.resize(image, (300, 300)), 0.007843, (300, 300), 127.5)
print("[INFO] computing object detections…")
print(blob.shape)
net.setInput(blob)
detections = net.forward()
# ---------------------
# RECTANGLE LISTS DEFINITION BASED ON APPLE.JPG + ZONE COUNTER CREATION
StartXlist = [1,230,580,30,275,460,155,295,415,200,300,390]
StartYlist = [265,265,265,120,120,120,68,68,68,40,40,40]
EndXlist = [90,430,640,210,380,620,240,355,510,255,355,465]
EndYlist = [420,420,420,220,220,220,110,110,110,65,65,65]
PeopleinZone=[0,0,0,0,0,0,0,0,0,0,0,0]
LimitpeopleZone= [3,3,3,3,3,3,3,3,3,3,3,3]
Risk = ["NO","NO","NO","NO","NO","NO","NO","NO","NO","NO","NO","NO"]
# ---------------------
for r in range(0,12):
      cv2.rectangle(image, (StartXlist[r], StartYlist[r]), (EndXlist[r], EndYlist[r]),         (0,255,255), 2) # Black color in BGR
      y = StartYlist[r] - 15 if StartYlist[r] - 15 > 15 else StartYlist[r] + 15     
      cv2.putText(image,'Zone'+str(r+1), (StartXlist[r], y),cv2.FONT_HERSHEY_SIMPLEX, 0.5, (0,255,255), 2)

for i in np.arange(0, detections.shape[2]):
     confidence = detections[0, 0, i, 2]
         
     if confidence > args["confidence"]:
            idx = int(detections[0, 0, i, 1])
            box = detections[0, 0, i, 3:7] * np.array([w, h, w, h])
            (startX, startY, endX, endY) = box.astype("int")      
            # label = '{}"class": {}, "confidence": {:.4f}, "startX": {}, "startY": {}, "EndX": {},  "EndY": {},  "Timestamp": {}{}'.format(chr(123),chr(34)+CLASSES[idx]+chr(34), confidence,startX,startY,endX,endY,chr(34)+str(datetime.now())+chr(34),chr(125)) 
            # label = json.dumps({'class': CLASSES[idx],"confidence": str(round(confidence * 100, 1)) + "%","startX": str(startX),"startY": str(startY),"EndX": str(endX),"EndY": str(endY),"Timestamp": datetime.now().strftime("%d/%m/%Y, %H:%M")})
            # print("[INFO] {}".format(label))
            # print(label3)
            # var person = { "name": "John", "age": 31, "city": "New York" }; JSON FORMAT FOUND
            
            ## Create table
            # val1 = json.loads(label3)
            # print(*val1)
          
            # df = pd.DataFrame(val1, index=list(range(1)))
            # print(df)
            ##
            if CLASSES[idx] == "person":
               for j in range(0,12):
                     dx= min(EndXlist[j],endX)-max(StartXlist[j],startX)
                     dy= min(EndYlist[j],endY)-max(StartYlist[j],startY)
                     if (dx>=0) and (dy>=0):
                          PeopleinZone[j]+= 1
                     # print("Zone"+str(j+1)+" dx: "+str(dx)+"dy: "+str(dy))
                     # print(PeopleinZone)
                     
print(PeopleinZone)            
# ---------------------
# MYSQL
mydb = mysql.connector.connect( host="xx", user="xx", password="xx")
# Check if connection was successful
if (mydb):
     # Carry out normal procedure
     print ("Connection successful")
else:
     # Terminate
     print ("Connection unsuccessful")
mycursor = mydb.cursor()
dbname="TFM40"
mySql_Create_db = "CREATE DATABASE IF NOT EXISTS "+dbname
mycursor.execute(mySql_Create_db)
mysql_use_db = "USE "+dbname
mycursor.execute(mysql_use_db)
x = datetime.now()
tablename="T"+str(x.year)+str(x.month)+str(x.day)
# mySql_Create_Table = "CREATE TABLE IF NOT EXISTS "+tablename +"(id int AUTO_INCREMENT PRIMARY KEY, Classification varchar(250), Confidence varchar(250), StartX varchar(250), StartY varchar(250), EndX varchar(250), EndY varchar(250), Timestamp varchar(250))"
mySql_Create_Table2 = "CREATE TABLE IF NOT EXISTS "+tablename +"(id int AUTO_INCREMENT PRIMARY KEY, Camera varchar(250), Zone1 float,  Zone2 float, Zone3 float, Zone4 float, Zone5 float, Zone6 float, Zone7 float, Zone8 float, Zone9 float, Zone10 float, Zone11 float, Zone12 float, Timestamp timestamp)"
print(mySql_Create_Table2)
mycursor.execute (mySql_Create_Table2)
# sql_insert = "INSERT INTO "+dbname+"."+tablename+" (Classification,Confidence,startX,startY,EndX,EndY,Timestamp) VALUES (%s,%s,%s,%s,%s,%s,%s)"
sql_insert2 = "INSERT INTO "+dbname+"."+tablename+" (Camera, Zone1, Zone2, Zone3, Zone4, Zone5, Zone6, Zone7, Zone8, Zone9, Zone10, Zone11, Zone12, Timestamp) VALUES (%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s,%s)"
# val = (str(CLASSES[idx]),str(round(confidence * 100, 1)),str(startX),str(startY),str(endX),str(endY),str(x))
val2 = ('hall',PeopleinZone[0],PeopleinZone[1],PeopleinZone[2],PeopleinZone[3],PeopleinZone[4],PeopleinZone[5],PeopleinZone[6],PeopleinZone[7],PeopleinZone[8],PeopleinZone[9],PeopleinZone[10],PeopleinZone[11],str(x))
# mycursor.execute(sql_insert,(val))
mycursor.execute(sql_insert2,(val2))
# mycursor.execute(sql_insert,(val,)) WORKS BUT IT IS FOR TUPLES
mydb.commit()
           
           
            
           # python main.py --prototxt MobileNetSSD_deploy.prototxt --model MobileNetSSD_deploy.caffemodel --image EXECUTION
            
           # cursor.close()



            # mydb.close()
            
            # INFLUXDB

            # client = InfluxDBClient(host, port, user, password, dbname)
            # client = InfluxDBClient('vps656540.ovh.net', 3306, 'master26', 'master26_', 'TRIALDB')
            # client.create_database('TRIALDB') 
            #DRAW SQUARE 
            #cv2.rectangle(image, (startX, startY), (endX, endY),         COLORS[idx], 2)  DEFINE OBJECTS DETECTED SQUARE   
            
            #y = startY - 15 if startY - 15 > 15 else startY + 15  VERTICAL POSITION OF CLASS TITLE    
            #cv2.putText(image, label, (startX, y),cv2.FONT_HERSHEY_SIMPLEX, 0.5, COLORS[idx], 2) TITLE INSERTION INTO IMAGE
cv2.imshow("Output", image)
#cv2.imwrite('C:/Users/César/Pictures/hall.jpg', image)
cv2.imwrite(os.path.join(path, '/hall.jpg'), image)
print(os.path.join(path, 'hall.jpg'))
cv2.waitKey(10000) # video (cambiamos un 0 por un 1)
# --------------------------------------------------------------------------------------------------------------------------
# TELEGRAM
# label = '{}"Camera": {}, "Zone1": {}, "Zone2": {}, "Zone3": {}, "Zone4": {}, "Zone5": {}, "Zone6": {}, "Zone7": {}, "Zone8": {}, "Zone9": {}, "Zone10": {},"Zone11": {},"Zone12": {}, "Timestamp": {}{}'.format(chr(123),chr(34)+'hall'+chr(34), PeopleinZone[0],PeopleinZone[1],PeopleinZone[2],PeopleinZone[3],PeopleinZone[4],PeopleinZone[5],PeopleinZone[6],PeopleinZone[7],PeopleinZone[8],PeopleinZone[9],PeopleinZone[10],PeopleinZone[11],chr(34)+str(datetime.now())+chr(34),chr(125)) 
# QUESTION & ANSWER 1
total=0
maximum=0
for z in range(0,12):
     total += PeopleinZone[z]
     maximum += LimitpeopleZone[z]
     if PeopleinZone[z]>= LimitpeopleZone[z]:
          Risk[z] ='YES'
     else:
          Risk[z] ='NO'
label = json.dumps({"Total people" : total, "Remaining people to reach limit" : (maximum - total),"Timestamp": datetime.now().strftime("%d/%m/%Y, %H:%M")})
print(label)
# ---------------------
# QUESTION & ANSWER 2
# label2 = json.dumps({"Camera": "hall", "Zone1": PeopleinZone[0],"Zone2": PeopleinZone[1],"Zone3": PeopleinZone[2],"Zone4": PeopleinZone[3],"Zone5": PeopleinZone[4],"Zone6": PeopleinZone[5],"Zone7": PeopleinZone[6],"Zone8": PeopleinZone[7],"Zone9": PeopleinZone[8],"Zone10": PeopleinZone[9],"Zone11": PeopleinZone[10],"Zone12": PeopleinZone[11],"Timestamp": datetime.now().strftime("%d/%m/%Y, %H:%M")})
label2 = json.dumps({"Camera": "hall", "Zone1 Risk": Risk[0],"Zone2 Risk": Risk[1],"Zone3 Risk": Risk[2],"Zone4 Risk": Risk[3],"Zone5 Risk": Risk[4],"Zone6 Risk": Risk[5],"Zone7 Risk": Risk[6],"Zone8 Risk": Risk[7],"Zone9 Risk": Risk[8],"Zone10 Risk": Risk[9],"Zone11 Risk": Risk[10],"Zone12 Risk": Risk[11],"Timestamp": datetime.now().strftime("%d/%m/%Y, %H:%M")})
print(label2)

telegram_thread.join()
# ---------------------s
# 

当我尝试从OpenCV使用imwrite保存图像时，我收到以下错误消息：

[ WARN:0] global C:\Users\appveyor\AppData\Local\Temp\1\pip-req-build-k8sx3e60\opencv\modules\imgcodecs\src\loadsave.cpp (710) cv::imwrite_ imwrite_('C:\hall.jpg'): can't open file for writing: permission denied

这发生在别人身上了吗

---

谢谢，

尝试写入您的主文件夹，例如：

C:\Users\Cesar\hall.png

我已经尝试过了。这很奇怪，因为它没有给出错误，但没有保存图片。请共享代码snippet