def __init__(self):
super(CameraMainWin, self).__init__()
self.setupUi(self)
#定义相机实例对象并设置捕获模式
self.camera = QCamera()
self.camera.setCaptureMode(QCamera.CaptureViewfinder)
self.cameraOpened = False # 设置相机打开状态为未打开
#设置取景器分辨率
viewFinderSettings = QCameraViewfinderSettings()
viewFinderSettings.setResolution(800, 600)
self.camera.setViewfinderSettings(viewFinderSettings)
#初始化取景器
self.viewCamera = QtMultimediaWidgets.QCameraViewfinder(self)
self.camera.setViewfinder(self.viewCamera)
self.camera.setCaptureMode(QCamera.CaptureStillImage)
self.camerLayout.addWidget(self.viewCamera) #取景器放置到预留的布局中
#设置图像捕获
self.capture = QCameraImageCapture(self.camera)
self.capture.setCaptureDestination(
QCameraImageCapture.CaptureToBuffer) #CaptureToBuffer
self.switchCamera: QPushButton
self.switchCamera.clicked.connect(self.SwitchCamera)
self.takePic.clicked.connect(self.TakePic)
self.capture.error.connect(lambda i, e, s: self.alert(s))
self.capture.imageAvailable.connect(self.saveImage)
self.capture.imageCaptured.connect(
lambda d, i: self.status.showMessage("Image %04d captured" % self.
save_seq))
def setDisplaySize(self, display_width_: int, display_height_: int):
self.mDisplayWidth = display_width_
self.mDisplayHeight = display_height_
viewFinderSettings = QCameraViewfinderSettings()
viewFinderSettings.setResolution(self.mDisplayWidth,
self.mDisplayHeight)
self.mCamera.setViewfinderSettings(viewFinderSettings)
def _on_camera_status_changed(self, status: QCamera.Status):
if self._ok_done:
# camera/scan is quitting, abort.
return
self.print_error('camera status changed to {}'.format(self._get_camera_status_name(status)))
if status == QCamera.LoadedStatus:
# Determine the optimal resolution and compute the crop rect
camera_resolutions = self.camera.supportedViewfinderResolutions()
try:
resolution, was_ideal = self._get_resolution(camera_resolutions, self.SCAN_SIZE)
except RuntimeError as e:
self._error_message = str(e)
self.reject()
return
self._set_resolution(resolution)
# Set the camera resolution
viewfinder_settings = QCameraViewfinderSettings()
viewfinder_settings.setResolution(resolution)
self.camera.setViewfinderSettings(viewfinder_settings)
# Counter for the QR scanner frame number
self.frame_id = 0
self.camera.start()
self.lowres_label.setVisible(not was_ideal) # if they have a low res camera, show the warning label.
elif status == QCamera.UnloadedStatus or status == QCamera.UnavailableStatus:
self._error_message = _("Cannot start QR scanner, camera is unavailable.")
self.reject()
elif status == QCamera.ActiveStatus:
self.open()
def _on_status_changed(self, status: QCamera.Status) -> None:
logger.debug("_on_camera_status_changed: %s", status)
if status == QCamera.LoadedStatus:
supported_resolutions = self.supportedViewfinderResolutions()
logger.info("Supported view finder resolutions: %s",
supported_resolutions)
if self._requested_viewfinder_resolution:
if self._requested_viewfinder_resolution in supported_resolutions:
logger.info(
"Setting resolution to %s",
self._requested_viewfinder_resolution,
)
requested_settings = QCameraViewfinderSettings()
requested_settings.setResolution(
self._requested_viewfinder_resolution)
self.setViewfinderSettings(requested_settings)
else:
raise ValueError(
"Requested viewfinder resolution %s, "
"but the only supported resolutions are %s",
", ".join(map(str, supported_resolutions)),
)
camera_resolution = self.viewfinderSettings().resolution()
logger.info("Using resolution: %s", camera_resolution)
def __init__(self, parent=QObject()):
super(Camera, self).__init__(parent)
# chooses the system default camera
self.cam = QCamera()
self.caminfo = QCameraInfo(self.cam)
self.camvfind = QCameraViewfinder()
self.camvfindset = QCameraViewfinderSettings()
self.recorder = QMediaRecorder(self.cam)
def __init__(self, parent = QObject()):
super(Camera, self).__init__(parent)
print("3")
self.cam = QCamera(QCameraInfo.defaultCamera()) #"/dev/video0".encode()
print("4")
self.caminfo = QCameraInfo(self.cam)
self.camvfind = QCameraViewfinder()
self.camvfindset = QCameraViewfinderSettings()
self.cammode = self.cam.CaptureMode(0)
self.camimgcap = QCameraImageCapture(self.cam)
def __init__(self):
"""
初始化
:return: null
"""
# 超类初始化
super().__init__()
# UI初始化
self.ui = Ui_mainWidget()
self.ui.setupUi(self)
self.grabKeyboard()
self.setMouseTracking(True)
self.setWindowFlags(Qt.FramelessWindowHint)
self.setWindowIcon(QIcon('OCR.ico'))
# 初始化相机
self.camera = QCamera()
self.imageCapture = QCameraImageCapture(self.camera)
self.viewsetting = QCameraViewfinderSettings()
self.initimplement()
# 初始化标题栏
self.initTitleBar()
# 初始化系统托盘
self.tray = QSystemTrayIcon()
self.tray.setIcon(QIcon('OCR.ico'))
self.initTray()
# OCR识别部分
self.OCR = ocr()
self.OCR.setappid('1257206643')
self.OCR.setsecretid('AKIDFTddWEg9Ncsz0sE7oOpBNOExdDdeCUJ3')
self.OCR.setsecretkey('FQitsgUND8yfrZK0RrBMOJB5tWhCm5Ol')
# 初始化登录部分
self.logWidget = QWidget()
self.logui = Ui_Form()
self.logui.setupUi(self.logWidget)
self.logWidget.setWindowFlags(Qt.FramelessWindowHint)
self.logWidget.setWindowModality(Qt.ApplicationModal)
self.logui.close_btn.clicked.connect(self.logWidget.close)
# 初始化变量
self.mousePressd = False
self.mousePoint = None
self.result = {}
self.isFirst = False
self.ocrType = ocrType.ocr_general # 默认为印刷体识别
# 初始化字定义信号连接
self.processFinished.connect(self.updateOCRInfo)
self.ui.btn_login.clicked.connect(self.logWidget.show)
self.ui.comboBox_choose.currentIndexChanged.connect(self.changeocrType)
def openCamera(self):
if not self.mCameraOpened:
self.mCamera.start()
viewFinderSettings = QCameraViewfinderSettings()
rate_range = self.mCamera.supportedViewfinderFrameRateRanges()
if rate_range:
viewFinderSettings.setMinimumFrameRate(
rate_range[0].minimumFrameRate)
viewFinderSettings.setMaximumFrameRate(
rate_range[0].maximumFrameRate)
else:
viewFinderSettings.setMinimumFrameRate(1)
viewFinderSettings.setMaximumFrameRate(self.mRate)
self.mTimerImageGrab.start(1000 / self.mRate)
self.mCameraOpened = True
def __init__(self):
super(CameraMainWin, self).__init__()
self.setupUi(self)
#定义相机实例对象并设置捕获模式
self.camera = QCamera()
self.camera.setCaptureMode(QCamera.CaptureViewfinder)
self.cameraOpened = False # 设置相机打开状态为未打开
#设置取景器分辨率
viewFinderSettings = QCameraViewfinderSettings()
viewFinderSettings.setResolution(800, 600)
self.camera.setViewfinderSettings(viewFinderSettings)
#初始化取景器
self.viewCamera = QtMultimediaWidgets.QCameraViewfinder(self)
self.camera.setViewfinder(self.viewCamera)
self.camerLayout.addWidget(self.viewCamera) #取景器放置到预留的布局中
#设置图像捕获
self.capImg = QCameraImageCapture(self.camera)
self.capImg.setCaptureDestination(
QCameraImageCapture.CaptureToFile) #CaptureToBuffer
from PyQt5.QtMultimedia import QCamera, QCameraViewfinderSettings camera = QCamera() viewfinder = QCameraViewfinderSettings() camera.setViewfinder(viewfinder) viewfinder.show() camera.start()