我正在尝试将实时图像写入Kinect在Ubuntu中获取的视频文件中。请参阅下面的示例代码：
***admin_panel.jsp***
<h1>Admin Panel</h1>
<h3>${Name}</h3>
<h3>${Email}</h3>
<h3>${Phone}</h3>
<h3>${textarea}</h3>
代码运行顺畅，终端没有显示任何错误。但是，它不会生成任何视频文件，即使我使用#!/usr/bin/env python
import roslib
roslib.load_manifest('ros_package_name')
import rospy
import cv2
from sensor_msgs.msg import Image
from cv_bridge import CvBridge, CvBridgeError
class image_converter(object):
def __init__(self, topic_name, file_name, fps=20):
self.fps = fps
self.file_name = file_name
self.bridge = CvBridge()
self.image_sub = rospy.Subscriber(topic_name, Image, self.callback)
self.video_writer = None
def callback(self,data):
try:
cv_image = self.bridge.imgmsg_to_cv2(data, 'bgr8')
except CvBridgeError as e:
print e
if self.video_writer is None:
rows, cols, _ = cv_image.shape
self.video_writer = cv2.VideoWriter(self.file_name, -1, self.fps, (cols, rows))
self.video_writer.write(cv_image)
def clean_shutdown(self):
if self.video_writer is not None:
self.video_writer.release()
print 'Saving video file', self.file_name
def __del__(self):
self.clean_shutdown()
def main():
ic = image_converter('/kinect2/qhd/image_color_rect','video.avi')
rospy.init_node('save_video', anonymous=True)
rospy.on_shutdown(ic.clean_shutdown)
rospy.spin()
终止它。
答案 0 :(得分：1)
使用编解码器保存视频。 Motion Jpeg几乎总是有效！
fourcc = cv2.VideoWriter_fourcc(*'MJPG')
self.video_writer = cv2.VideoWriter(file_name, fourcc, fps, frame_size)
然后是故事的其余部分。