本文整理汇总了Python中cv2.VideoCapture.open方法的典型用法代码示例。如果您正苦于以下问题：Python VideoCapture.open方法的具体用法？Python VideoCapture.open怎么用？Python VideoCapture.open使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类cv2.VideoCapture的用法示例。
在下文中一共展示了VideoCapture.open方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: Camera
# 需要导入模块: from cv2 import VideoCapture [as 别名]
# 或者: from cv2.VideoCapture import open [as 别名]
class Camera(object):
''' Communicate with the camera.
Class governing the communication with the camera.
Parameters
-----------
camera : int
the index of the camera, best taken from func lookForCameras,
from eyetracker.camera.capture
dic : dic{propID value}
to check corresponding propIDs check
opencv documentation under the term VideoCapture.
They will be set in the moment of object creation.
Defines
--------
self.camera : index of the camera
self.cap : capturing object
self.frame : returns a frame from camera
self.close : closes cap
self.reOpen : reopens cap
'''
def __init__(self, camera, dic=None):
self.camera = int(camera)
self.cap = VideoCapture(self.camera)
if dic:
for propID, value in dic.iteritems():
self.cap.set(propID, value)
first_frame = self.frame()
def frame(self):
''' Read frame from camera.
Returns
--------
frame : np.array
frame from camera
'''
if self.cap.isOpened:
return self.cap.read()[1]
else:
print 'Cap is not opened.'
return None
def set(self, **kwargs):
''' Set camera parameters.
Parameters
-----------
kwargs : {propID : value}
'''
for propID, value in kwargs.iteritems():
self.cap.set(propID, value)
def close(self):
''' Closes cap, you can reopen it with self.reOpen.
'''
self.cap.release()
def reOpen(self, cameraIndex):
''' Reopens cap.
'''
self.cap.open(self.camera)
first_frame = self.frame()