一、安装Python
下载安装到这个目录
G:\Python38-32
安装完成有这些工具，后面备用：
G:\Python38-32\Scripts\pyrcc5.exe
G:\Python38-32\Scripts\pyuic5.exe
二、PyQt环境配置
pip install PyQt5
pip install pyqt5-tools
建议使用国内源，进行快速安装：
pip install -i https://pypi.tuna.tsinghua.edu.cn/simple pyqt5
pip install -i https://pypi.tuna.tsinghua.edu.cn/simple pyqt5-tools
安装QT，安装到 E:\Qt5.12.6 目录下；
从这个目录下打开qtcreator.exe
E:\Qt5.12.6\Tools\QtCreator\bin
三、用QTCreator设计界面
Qt Designer 是通过拖拽的方式放置控件，并实时查看控件效果进行快速UI设计。
这里只需要 MainWindow.ui 文件
最终生成.ui文件（实质上是XML格式的文件），可以通过pyuic5工具转换成.py文件。
ui文件到 py文件：pyuic5.exe xxx.ui -o xxx.py
pyuic5.exe主要是把Qt Designer生成的.ui文件换成.py文件。
pyrcc5.exe主要是把编写的.qrc资源文件换成.py文件。
需要把按钮事件绑定到槽函数：
self.pushButton.clicked.connect(self.PropertyClicked)
完成后的代码如下
python
import sys
from PyQt5.QtWidgets import QApplication, QWidget, QLabel, QPushButton, QMainWindow
from PyQt5.QtWidgets import *
from PyQt5.QtCore import *
from PyQt5.QtGui import *
import mvsdk
from MainWindow import Ui_MainWindow
color = False
class MyWidget(QMainWindow, Ui_MainWindow):
def __init__(self, parent=None):
super(MyWidget, self).__init__(parent)
self.setupUi(self)
# 枚举相机
DevList = mvsdk.CameraEnumerateDevice()
nDev = len(DevList)
if nDev < 1:
print("No camera was found!")
return
for i, DevInfo in enumerate(DevList):
print("{}: {} {}".format(i, DevInfo.GetFriendlyName(), DevInfo.GetPortType()))
i = 0 if nDev == 1 else int(input("Select camera: "))
DevInfo = DevList[i]
print(DevInfo)
# 打开相机
global hCamera
# hCamera = 0
try:
hCamera = mvsdk.CameraInit(DevInfo, -1, -1)
except mvsdk.CameraException as e:
print("CameraInit Failed({}): {}".format(e.error_code, e.message))
QMessageBox.question(self, '本程序', '初始化相机失败！')
return
global cap
cap = mvsdk.CameraGetCapability(hCamera)
if cap.sIspCapacity.bMonoSensor:
mvsdk.CameraSetIspOutFormat(hCamera, mvsdk.CAMERA_MEDIA_TYPE_MONO8)
color = False
else:
mvsdk.CameraSetIspOutFormat(hCamera, mvsdk.CAMERA_MEDIA_TYPE_RGB8)
color = True
# 相机模式切换成连续采集
mvsdk.CameraSetTriggerMode(hCamera, 0)
# 自动曝光
# mvsdk.CameraSetAeState(hCamera, 1)
mvsdk.CameraCreateSettingPage(hCamera, 0, DevInfo.acFriendlyName, 0, 0, 0)
# 让SDK内部取图线程开始工作
mvsdk.CameraPlay(hCamera)
# Mindvision线程
self.MVthread = MindvisionThread()
self.MVthread.signal.connect(self.image_callback)
self.MVthread.start()
self.pushButton.clicked.connect(self.PropertyClicked)
#self.pushButton_9.clicked.connect(self.save_mindvision_image)
def stop_thread(self):
if self.MVthread is not None and self.MVthread.isRunning():
self.MVthread.stop()
def save_mindvision_image(self):
global hCamera
pRawData, FrameHead = mvsdk.CameraGetImageBuffer(hCamera, 2000)
mvsdk.CameraImageProcess(hCamera, pRawData, pFrameBuffer, FrameHead)
mvsdk.CameraReleaseImageBuffer(hCamera, pRawData)
mvsdk.CameraSaveImage(hCamera, "./pic.bmp", pFrameBuffer, FrameHead, mvsdk.FILE_BMP, 80)
def image_callback(self, image):
pixmap = QPixmap.fromImage(image)
# ratio = max(width / self.left_bottom_image.width(), height / self.left_bottom_image.height())
self.label.setAlignment(Qt.AlignCenter)
self.label.setScaledContents(True)
self.label.setPixmap(pixmap)
def PropertyClicked(self):
mvsdk.CameraShowSettingPage(hCamera, True);
# def initUI(self):
# # 创建标签
# label = QLabel('Hello, PyQt!')
# # 创建按钮
# button = QPushButton('Click me!')
# button.clicked.connect(self.buttonClicked)
# # 将标签和按钮添加到窗口中
# self.setCentralWidget(label)
# self.setWidget(button)
# def buttonClicked(self):
# # 在这里编写按钮被点击时要执行的代码
# print('Button clicked!')
# 程序退出
def closeEvent(self, event):
reply = QMessageBox.question(self, '本程序', '是否要退出？', QMessageBox.Yes | QMessageBox.No, QMessageBox.No)
if reply == QMessageBox.Yes:
global pFrameBuffer
event.accept()
self.stop_thread()
mvsdk.CameraUnInit(hCamera)
mvsdk.CameraAlignFree(pFrameBuffer)
sys.exit(0)
else:
event.ignore()
class MindvisionThread(QThread):
signal = pyqtSignal(QImage)
def __init__(self):
super(MindvisionThread, self).__init__()
self.is_running = True
# 计算RGB buffer所需的大小，这里直接按照相机的最大分辨率来分配
FrameBufferSize = cap.sResolutionRange.iWidthMax * cap.sResolutionRange.iHeightMax * 3
global pFrameBuffer
pFrameBuffer = mvsdk.CameraAlignMalloc(FrameBufferSize, 16)
def run(self):
while self.is_running:
global cap
global hCamera
global FrameHead
# 分配RGB buffer，用来存放ISP输出的图像
#global pFrameBuffer
#pFrameBuffer = mvsdk.CameraAlignMalloc(FrameBufferSize, 16)
try:
pRawData, FrameHead = mvsdk.CameraGetImageBuffer(hCamera, 2000)
mvsdk.CameraImageProcess(hCamera, pRawData, pFrameBuffer, FrameHead)
# Windows 上下帧翻转
mvsdk.CameraFlipFrameBuffer(pFrameBuffer, FrameHead, 1)
mvsdk.CameraReleaseImageBuffer(hCamera, pRawData)
# mvsdk.CameraSaveImage(hCamera, ".\\pic.bmp", pFrameBuffer, FrameHead, mvsdk.FILE_BMP, 80)
# break
#mat = QImage(pFrameBuffer, cap.sResolutionRange.iWidthMax, cap.sResolutionRange.iHeightMax, QImage.Format_RGB888 if True == color else QImage.Format_Indexed8 )
if FrameHead.uiMediaType==mvsdk.CAMERA_MEDIA_TYPE_MONO8:
#if(quit) break
img = QImage(pFrameBuffer, FrameHead.iWidth, FrameHead.iHeight, QImage.Format_Indexed8)
#img.setColorTable(grayColourTable);
#emit captured(img);
self.signal.emit(QImage(img))
else:
#if(quit) break
img = QImage(pFrameBuffer, FrameHead.iWidth, FrameHead.iHeight, QImage.Format_RGB888)
#emit captured(img);
self.signal.emit(QImage(img))
# self.signal.emit(QImage(mat))
n = self.getTrgNum()
# print( n )
except mvsdk.CameraException as e:
print("CameraGetImageBuffer failed({}): {}".format(e.error_code, e.message) )
def stop(self):
self.is_running = False
def getTrgNum(self):
global hCamera
c_Num = mvsdk.c_int()
mvsdk.CameraSpecialControl(hCamera, 0x1000, 0x1000050C, mvsdk.addressof(c_Num))
return c_Num.value
if __name__ == '__main__':
app = QApplication(sys.argv)
widget = MyWidget()
widget.show()
sys.exit(app.exec_())
python
# -*- coding: utf-8 -*-
# Form implementation generated from reading ui file 'MainWindow.ui'
#
# Created by: PyQt5 UI code generator 5.15.9
#
# WARNING: Any manual changes made to this file will be lost when pyuic5 is
# run again. Do not edit this file unless you know what you are doing.
from PyQt5 import QtCore, QtGui, QtWidgets
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(800, 600)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.pushButton = QtWidgets.QPushButton(self.centralwidget)
self.pushButton.setGeometry(QtCore.QRect(20, 20, 75, 23))
self.pushButton.setObjectName("pushButton")
self.pushButton_2 = QtWidgets.QPushButton(self.centralwidget)
self.pushButton_2.setGeometry(QtCore.QRect(120, 20, 75, 23))
self.pushButton_2.setObjectName("pushButton_2")
self.pushButton_3 = QtWidgets.QPushButton(self.centralwidget)
self.pushButton_3.setGeometry(QtCore.QRect(220, 20, 75, 23))
self.pushButton_3.setObjectName("pushButton_3")
self.label = QtWidgets.QLabel(self.centralwidget)
self.label.setGeometry(QtCore.QRect(20, 60, 551, 421))
self.label.setObjectName("label")
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 23))
self.menubar.setObjectName("menubar")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
self.pushButton.setText(_translate("MainWindow", "属性设置"))
self.pushButton_2.setText(_translate("MainWindow", "PushButton"))
self.pushButton_3.setText(_translate("MainWindow", "PushButton"))
self.label.setText(_translate("MainWindow", "TextLabel"))运行效果
(结束)