实现basler进行抓拍显示

序

为了实现输入条码后，basler相机自动拍照

实现思路

就是简单的拍照，主要就是指定哪个相机拍照是个问题

代码实现

偷懒写了一个配置文件，直接从这里读取参数

GUIs

    import os
    import sqlite3
    import tkinter as tk
    from PIL import Image, ImageTk
    from camera import getTime, getSavePath, getDate, cameraMain
    from readTxts import readAll
    # 取得输入框的值并清空输入框
    def handle_enter(event):
        text = entry.get()
        print(text)
        entry.delete(0, 'end')
        img_show()
        try:
            sqlPath = readAll()[0][0]
            connect = sqlite3.connect(sqlPath)
            cur = connect.cursor()
            cur.execute(
                f'INSERT INTO THERE_SCAN (SCANTIME,ITEMCODE,SCANDATE) VALUES ("{getTime()}","{text}","{getDate()}")')
            connect.commit()
            cur.close()
            connect.close()

        except Exception as e:
            print('Error：数据库错误')
            print(e)
            errorShow('数据库错误', 'red')


    def load_img(index, item):
        # 打开图片。
        # resize()：示例图片太大，这里缩小一些。
        img = Image.open(item).resize((400, 300))

        # 引用：添加一个Label，用来存储图片。使用PanedWindow也行。
        panel = tk.Label(master=window)
        panel.photo = ImageTk.PhotoImage(img)  # 将原本的变量photo改为panel.photo

        # 图片用Label来显示，参数master改不改为panel都行，这里就不改了。
        # 注意：参数image改为panel.photo
        # tk.Label(master=window, image=panel.photo).grid(row=1 + index // 2, column=index % 2)
        tk.Label(master=window, image=panel.photo).place(x=100 + 800 * index // 2, y=50 + 800 * index % 2)


    # 展示图片
    def img_show():
        try:
            cameraMain()
            paths = getSavePath() + '\\' + getDate() + '\\' + getTime() + '\\'
            image_files = [f for f in os.listdir(paths) if os.path.isfile(os.path.join(paths, f))]
            img_list = []
            for imgs in image_files:
                img_list.append(imgs)

            for index, item in enumerate(img_list):
                load_img(index, paths + item)  # 执行函数
            errorShow('OK', 'green')

        except Exception as e:
            print(e)
            errorShow('相机未连接，或者相机IP未配置正确,配置正确后请重试', 'red')


    def errorShow(errors, color):
        showTxt = getTime()+" : "+errors
        showText.config(text=showTxt, bg=color)
        showText.place(x=300, y=10)


    if __name__ == '__main__':
        window = tk.Tk()
        # 设置弹出窗口的大小
        window.geometry("1000x800")
        # 设置左上角图标
        window.iconphoto(False, tk.PhotoImage(file='anll.png'))
        window.title("扫码过站照片采集")
        # 添加一个标签和一个文本框
        label = tk.Label(window, text="请输入条码：")
        entry = tk.Entry(window)
        Timeshow = tk.Label(window)
        showText = tk.Label(window)
        # label.grid(row=0, column=0)
        # entry.grid(row=0, column=1)

        label.place(x=10, y=10)
        entry.place(x=100, y=10)
        # 设置焦点
        entry.focus_set()

        # 按回车就输入值
        entry.bind("<Return>", handle_enter)

        # 进入事件循环
        window.mainloop()

basler

from pypylon import pylon
import cv2


# conecting to the first available camera
# camera = pylon.InstantCamera(pylon.TlFactory.GetInstance().CreateFirstDevice())

def savePhoto(ip_address, saveFile):
    info = pylon.DeviceInfo()
    info.SetPropertyValue('IpAddress', ip_address)
    camera = pylon.InstantCamera(pylon.TlFactory.GetInstance().CreateFirstDevice(info))
    # camera = pylon.InstantCamera(pylon.TlFactory.GetInstance().CreateFirstDevice())
    # Grabing Continusely (video) with minimal delay
    camera.StartGrabbing(pylon.GrabStrategy_LatestImageOnly)
    converter = pylon.ImageFormatConverter()
    # converting to opencv bgr format
    converter.OutputPixelFormat = pylon.PixelType_BGR8packed
    converter.OutputBitAlignment = pylon.OutputBitAlignment_MsbAligned

    grabResult = camera.RetrieveResult(1000, pylon.TimeoutHandling_ThrowException)
    if grabResult.GrabSucceeded():
        # Access the image data
        image = converter.Convert(grabResult)
        img = image.GetArray()
        # cv2.namedWindow('title', cv2.WINDOW_NORMAL)
        # cv2.imshow('title', img)
        # cv2.imwrite(r'F:\Desktop\1\123.jpg', img)
        cv2.imencode('.jpg', img)[1].tofile(saveFile)
    grabResult.Release()
    # Releasing the resource
    camera.StopGrabbing()
    cv2.destroyAllWindows()

camera

#!/usr/bin/env python
# coding=utf-8
import datetime
import os

import cv2 as cv

from basler import savePhoto
from readTxts import readAll

now = datetime.datetime.now()

# 格式化日期和时间
formatted_date = now.strftime("%Y%m%d")
formatted_time = now.strftime("%H%M%S")
SavePath = readAll()[1][0]


def getSavePath():
    return SavePath


def setTime():
    global now
    now = datetime.datetime.now()
    global formatted_date
    formatted_date = now.strftime("%Y-%m-%d")
    global formatted_time
    formatted_time = now.strftime("%Hh%Mm%Ss")


def getDate():
    return formatted_date


def getTime():
    return formatted_time


# 路径不存在就生成
def fileOrNone(File_Path):
    if not os.path.exists(File_Path):
        os.makedirs(File_Path)


# 本机拍照保存
def show_in_cv(camera_id):
    # 获取当前日期和时间
    setTime()
    DayPaths = SavePath + '\\' + f'{formatted_date}'
    fileOrNone(DayPaths)
    datePaths = DayPaths + '\\' + f'{formatted_time}'
    fileOrNone(datePaths)

    # 本机拍照代码
    cap = cv.VideoCapture(camera_id, cv.CAP_DSHOW)
    # cap.set(cv.CAP_PROP_FRAME_WIDTH, 960)
    # cap.set(cv.CAP_PROP_FRAME_HEIGHT, 540)
    # cap.set(cv.CAP_PROP_FPS, 30)
    suc, frame = cap.read()

    # 纯英文路径保存方法
    # cv.imwrite(f'{datePaths}\{camera_id}.jpg', frame)

    # 中文路径保存方法
    cv.imencode('.jpg', frame)[1].tofile(f'{datePaths}'+'\\'+f'{camera_id}.jpg')
    # 弹窗展示功能
    # cv.imshow("preview camera", frame)
    # cv.waitKey(30)


def cameraMain():
    # cameras = list_video_devices()
    # print(f'\n\n===========================\ncamera_list: {cameras}')
    # print(cameras)
    # idx = 1
    # camera_id = cameras[idx][0]
    # camera_name = cameras[idx][1]
    # print(f'\n\n===========================\npreview camera: camera_id={camera_id} camera_name={camera_name}')
    # show_in_cv(camera_id)

    # cameras = list_video_devices()
    # print(cameras)
    # for idx in cameras:
    #     camera_id = idx[0]
    #     camera_name = idx[1]
    #     print(camera_name)
    #     show_in_cv(camera_id)
    setTime()
    DayPaths = SavePath + '\\' + f'{formatted_date}'
    fileOrNone(DayPaths)
    datePaths = DayPaths + '\\' + f'{formatted_time}'
    fileOrNone(datePaths)

    ip_address = readAll()[3][0]
    ipList = ip_address.split(',')
    for index, ip in enumerate(ipList):
        cameras = ip
        print(ip)
        saveFilePhoto = f'{datePaths}' + '\\' + f'{index}.jpg'
        savePhoto(cameras, saveFilePhoto)

readTxts

    def listToStr(strList):
    strs = ""
    if len(strList) > 0:
        for i in strList:
            strs = strs + i
            if i != strList[-1]:
                strs = strs + "\\"
    return strs


# 读取同一行文字的时候
def sameLine(txt_Path, needWord):
    with open(txt_Path, encoding='utf-8') as file:
        words = needWord
        returnWord = []
        for line in file.readlines():
            if line.strip().startswith(words):
                returnWord.append(line.strip().replace(words, ""))
    if len(returnWord) == 0:
        returnWord.append("无")
    return returnWord


def readAll():
    try:
        txt_Path = r'F:\Desktop\3期摄像头扫码拍照留像\扫码过站照片采集配置.txt'
        result_list = [sameLine(txt_Path, "数据库保存路径="), sameLine(txt_Path, "照片保存总路径="),
                       sameLine(txt_Path, "默认图片文件夹路径="), sameLine(txt_Path, "相机IP=")]

        return result_list

    except Exception as e:
        print("Error:0 文件读取错误")
        print(e)


if __name__ == '__main__':
    print(readAll())