感謝Taimur Islam的提問。感謝eyllanesc的精彩回答，我對你的代碼進行了一些修改。我使用PtQt = 4 Python = 2.7并且我沒有使用opencvimport?sys

import?numpy?as?npimport?flycapture2?as?fc2from?PyQt4.QtCore?import?(QThread,?Qt,?pyqtSignal)from?PyQt4.QtGui?import?(QPixmap,?QImage,?QApplication,?QWidget,?QLabel)class?Thread(QThread):

changePixmap?=?pyqtSignal(QImage)

def?__init__(self,?parent=None):

QThread.__init__(self,?parent=parent)

self.cameraSettings()

def?run(self):

while?True:

im?=?fc2.Image()

self.c.retrieve_buffer(im)

a?=?np.array(im)

rawImage?=?QImage(a.data,?a.shape[1],?a.shape[0],?QImage.Format_Indexed8)

self.changePixmap.emit(rawImage)

def?cameraSettings(self):

print(fc2.get_library_version())

self.c?=?fc2.Context()

numberCam?=?self.c.get_num_of_cameras()

print(numberCam)

self.c.connect(*self.c.get_camera_from_index(0))

print(self.c.get_camera_info())

m,?f?=?self.c.get_video_mode_and_frame_rate()

print(m,?f)

print(self.c.get_property_info(fc2.FRAME_RATE))

p?=?self.c.get_property(fc2.FRAME_RATE)

print(p)

self.c.set_property(**p)

self.c.start_capture()class?App(QWidget):

def?__init__(self):

super(App,self).__init__()

self.title?=?'PyQt4?Video'

self.left?=?100

self.top?=?100

self.width?=?640

self.height?=?480

self.initUI()

def?initUI(self):

self.setWindowTitle(self.title)

self.setGeometry(self.left,?self.top,?self.width,?self.height)

self.resize(800,?600)

#?create?a?label

self.label?=?QLabel(self)

self.label.move(0,?0)

self.label.resize(640,?480)

th?=?Thread(self)

th.changePixmap.connect(lambda?p:?self.setPixMap(p))

th.start()

def?setPixMap(self,?p):

p?=?QPixmap.fromImage(p)

p?=?p.scaled(640,?480,?Qt.KeepAspectRatio)

self.label.setPixmap(p)if?__name__?==?'__main__':

app?=?QApplication(sys.argv)

ex?=?App()

ex.show()

sys.exit(app.exec_())

總結

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