class QmyMainWindow(QMainWindow):
def __init__(self, parent=None):
super().__init__(parent) #调用父类构造函数，创建窗体
self.ui = Ui_MainWindow() #创建UI对象
self.ui.setupUi(self) #构造UI界面
self.__LabCameraState = QLabel("摄像头state:")
self.__LabCameraState.setMinimumWidth(150)
self.ui.statusBar.addWidget(self.__LabCameraState)
self.__LabImageID = QLabel("图片文件ID:")
self.__LabImageID.setMinimumWidth(100)
self.ui.statusBar.addWidget(self.__LabImageID)
self.__LabImageFile = QLabel("") #保存的图片文件名
## self.ui.statusBar.addWidget(self.__LabImageFile)
self.ui.statusBar.addPermanentWidget(self.__LabImageFile)
self.camera = None #QCamera对象
cameras = QCameraInfo.availableCameras() #list[QCameraInfo]
if len(cameras) > 0:
self.__iniCamera() #初始化摄像头
self.__iniImageCapture() #初始化静态画图
self.camera.start()
## ==============自定义功能函数========================
def __iniCamera(self): ##创建 QCamera对象
camInfo = QCameraInfo.defaultCamera() #获取缺省摄像头,QCameraInfo
self.ui.comboCamera.addItem(camInfo.description()) #摄像头描述
self.ui.comboCamera.setCurrentIndex(0)
self.camera = QCamera(camInfo) #创建摄像头对象
self.camera.setViewfinder(self.ui.viewFinder) #设置取景框预览
## camera.setCaptureMode(QCamera.CaptureViewfinder) #预览
self.camera.setCaptureMode(QCamera.CaptureStillImage) #设置为抓图
## camera.setCaptureMode(QCamera.CaptureVideo)
mode = QCamera.CaptureStillImage
supported = self.camera.isCaptureModeSupported(mode)
self.ui.checkStillImage.setChecked(supported) #支持拍照
supported = self.camera.isCaptureModeSupported(QCamera.CaptureVideo)
self.ui.checkVideo.setChecked(supported) #支持视频录制
supported = self.camera.exposure().isAvailable()
self.ui.checkExposure.setChecked(supported) #支持曝光补偿
supported = self.camera.focus().isAvailable()
self.ui.checkFocus.setChecked(supported) #支持变焦
self.camera.stateChanged.connect(self.do_cameraStateChanged)
def __iniImageCapture(self): ##创建 QCameraImageCapture对象
self.capturer = QCameraImageCapture(self.camera)
settings = QImageEncoderSettings() #拍照设置
settings.setCodec("image/jpeg") #设置抓图图形编码
settings.setResolution(640, 480) #分辨率
settings.setQuality(QMultimedia.HighQuality) #图片质量
self.capturer.setEncodingSettings(settings)
self.capturer.setBufferFormat(QVideoFrame.Format_Jpeg) #缓冲区格式
if self.ui.chkBoxSaveToFile.isChecked():
dest = QCameraImageCapture.CaptureToFile #保存到文件
else:
dest = QCameraImageCapture.CaptureToBuffer #保存到缓冲区
self.capturer.setCaptureDestination(dest) #保存目标
self.capturer.readyForCaptureChanged.connect(self.do_imageReady)
self.capturer.imageCaptured.connect(self.do_imageCaptured)
self.capturer.imageSaved.connect(self.do_imageSaved)
## ==============event处理函数==========================
## ==========由connectSlotsByName()自动连接的槽函数============
@pyqtSlot(bool) ##设置保存方式
def on_chkBoxSaveToFile_clicked(self, checked):
if checked:
dest = QCameraImageCapture.CaptureToFile #保存到文件
else:
dest = QCameraImageCapture.CaptureToBuffer #保存到缓冲区
self.capturer.setCaptureDestination(dest) #保存目标
@pyqtSlot() ##拍照
def on_actCapture_triggered(self):
QSound.play("shutter.wav") #播放快门音效
self.camera.searchAndLock() #快门半按下时锁定摄像头参数
self.capturer.capture() #拍照
self.camera.unlock() #快门按钮释放时解除锁定
@pyqtSlot() ##打开摄像头
def on_actStartCamera_triggered(self):
self.camera.start()
@pyqtSlot() ##关闭摄像头
def on_actStopCamera_triggered(self):
self.camera.stop()
## =============自定义槽函数===============================
def do_cameraStateChanged(self, state): ##摄像头状态变化
if (state == QCamera.UnloadedState):
self.__LabCameraState.setText("摄像头state: UnloadedState")
elif (state == QCamera.LoadedState):
self.__LabCameraState.setText("摄像头state: LoadedState")
elif (state == QCamera.ActiveState):
self.__LabCameraState.setText("摄像头state: ActiveState")
self.ui.actStartCamera.setEnabled(state != QCamera.ActiveState)
self.ui.actStopCamera.setEnabled(state == QCamera.ActiveState)
def do_imageReady(self, ready): ##是否可以拍照了
self.ui.actCapture.setEnabled(ready)
def do_imageCaptured(self, imageID, preview): ##图片被抓取到内存
#preview是 QImage
H = self.ui.LabImage.height()
W = self.ui.LabImage.width()
scaledImage = preview.scaled(W, H, Qt.KeepAspectRatio,
Qt.SmoothTransformation)
self.ui.LabImage.setPixmap(QPixmap.fromImage(scaledImage))
self.__LabImageID.setText("图片文件ID:%d" % imageID)
self.__LabImageFile.setText("图片保存为： ")
def do_imageSaved(self, imageID, fileName): ##图片被保存
self.__LabImageID.setText("图片文件ID:%d" % imageID)
self.__LabImageFile.setText("图片保存为： " + fileName)
class QmyCamerawindow(QMainWindow):
def __initCamera(self):
camInfo = QCameraInfo.defaultCamera()
self.camera = QCamera(camInfo)
self.camera2 = QCamera(camInfo)
self.camera.setViewfinder(self._ui.widget)
self.camera2.setViewfinder(self._ui.widget_2)
self.camera.setCaptureMode(
QCamera.CaptureStillImage) #captureviewfinder
self.camera2.setCaptureMode(QCamera.CaptureStillImage)
def _initImageCapture(self):
self.capture = QCameraImageCapture(self.camera)
self.capture2 = QCameraImageCapture(self.camera2)
setting = QImageEncoderSettings()
setting.setCodec("image/jpeg")
self.capture.setEncodingSettings(setting)
self.capture.setBufferFormat(QVideoFrame.Format_Jpeg)
self.capture.setCaptureDestination(QCameraImageCapture.CaptureToBuffer)
self.capture.readyForCaptureChanged.connect(self.do_imageReady)
self.capture.imageCaptured.connect(self.do_imageCaptured)
self.capture2.setEncodingSettings(setting)
self.capture2.setBufferFormat(QVideoFrame.Format_Jpeg)
self.capture2.setCaptureDestination(
QCameraImageCapture.CaptureToBuffer)
self.capture2.readyForCaptureChanged.connect(self.do_imageReady)
self.capture2.imageCaptured.connect(self.do_imageCaptured2)
# self.capture.setCaptureDestination(QCameraImageCapture.CaptureToFile)
def do_imageReady(self, ready):
self._ui.actionActCaputure.setEnabled(ready)
def do_imageCaptured2(self, image_id, preview):
self.getpicname2()
preview.save(self.picname2)
cv2.waitKey(500)
resultid = useract.find_one(self.facealbum_token, self.picname2)
print(resultid)
cv2.waitKey(500)
data = sqlact.search_sql("student", resultid)
print(data)
self._ui.plainTextEdit_3.setPlainText(data[0][1])
self._ui.plainTextEdit_4.setPlainText(data[0][2])
self._ui.plainTextEdit_5.setPlainText(str(data[0][3]))
# print(preview)
def do_imageCaptured(self, image_id, preview):
H = self._ui.label_2.height()
W = self._ui.label_2.width()
scaledImage = preview.scaled(W, H, Qt.KeepAspectRatio,
Qt.SmoothTransformation)
self._ui.label_2.setPixmap(QPixmap.fromImage(scaledImage))
self.getpicname()
preview.save(self.picname)
# useract.add_newone("student",name)
def on_actionActCaputure_triggered(self):
# QSound.play("shutter.wav")
self.camera.searchAndLock()
self.capture.capture()
self.camera.unlock()
# FName = fr"E:\iddatabasepic\cap{time.strftime('%Y%m%d%H%M%S', time.localtime())}"
# self.flag += 1
# self.capture.capture(FName)
# print(f"捕获图像保存到文件：{FName}.jpg")
def on_actionActStartCamera_triggered(self):
self.camera.start()
self.flag = 1
def on_actionActCloseCamrera_triggered(self):
self.camera.stop()
self.flag = 0
def on_actionActExit_triggered(self):
self.camera.stop()
self.close()
def gettext(self):
self.text = self._ui.plainTextEdit.toPlainText()
self.text2 = self._ui.plainTextEdit_2.toPlainText()
useract.add_newone("student", self.text, self.text2,
self.facealbum_token, self.picname)
def getpicname(self): #获取图片名
self.picname = fr"E:\iddatabasepic\cap{time.strftime('%Y%m%d%H%M%S', time.localtime())}" + ".jpg"
# print(self.text)
def getpicname2(self): #获取图片名
self.picname2 = fr"E:\iddatabasepic\capnew{time.strftime('%Y%m%d%H%M%S', time.localtime())}" + ".jpg"
def tabshift1(self):
# print(self.tabWidget.currentIndex())
# print("hello")
self._ui.tabWidget.setCurrentIndex(0)
if self.flag2 == 1:
self.camera2.stop()
self.flag2 = 0
def tabshift2(self):
self._ui.tabWidget.setCurrentIndex(1)
if self.flag == 1:
self.camera.stop()
self.flag = 0
self.flag2 = 1
useract.group_all(self.facealbum_token)
self.camera2.start()
def tabshift3(self):
self._ui.tabWidget.setCurrentIndex(2)
if self.flag == 1:
self.camera.stop()
self.flag = 0
if self.flag2 == 1:
self.camera2.stop()
self.flag2 = 0
def searchcap(self):
self.camera2.searchAndLock()
self.capture2.capture()
self.camera2.unlock()
def dataview(self):
view = sqlact.search_all_sql("student")
self._ui.plainTextEdit_7.setPlainText(",".join(
[str(t) for i in view for t in i]))
def __init__(self, parent=None):
super().__init__(parent)
self._ui = Ui_MainWindowcamera()
self.flag = 1
self.flag2 = 0
self._ui.setupUi(self)
self.camera = None
self.picname2 = ""
self.picname = ""
self.facealbum_token = "1577420387-3990379c-dcc2-4fe8-ae47-bf37a299118d"
self._ui.btnget.clicked.connect(self.gettext)
self._ui.addnew.clicked.connect(self.tabshift1)
self._ui.searchinfo.clicked.connect(self.tabshift2)
self._ui.pushButton_3.clicked.connect(self.tabshift3)
self._ui.btncap.clicked.connect(self.searchcap)
self._ui.btndata.clicked.connect(self.dataview)
cameras = QCameraInfo.availableCameras()
if len(cameras) > 0:
self.__initCamera()
self._initImageCapture()
self.camera.start()
