根据你的ROS2发行版(例如Humble),使用以下命令安装cv_bridge: bash sudo apt-get install ros-<ros2_distro>-cv-bridge 将<ros2_distro>替换为你的ROS2发行版名称,例如humble。 4. 配置环境以确保cv_bridge能够在ROS2环境中正常运行 安装完成后,你需要确保你的ROS2工作空间已经正确配置。通常...
官方文档里也说了“使用本模块,必须在 ROS 环境中配置并运行rosbridge”,但是他这句不是太明显!所以我一开始就忽略了… 前置条件:需要先在ros2的环境里,安装rosbridge,即使用命令: sudo apt-get install ros-<安装的ros版本>-rosbridge-server,例如 sudo apt-get install ros-humble-rosbridge-server 安装后,...
self.cv_bridge = CvBridge() # 创建一个图像转换对象,用于OpenCV图像与ROS的图像消息的互相转换 self.srv = self.create_service(GetObjectPosition, # 创建服务器对象(接口类型、服务名、服务器回调函数) 'get_target_position', self.object_position_callback) self.objectX = 0 self.objectY = 0 def obj...
cv\_bridge::toCvCopy()方法:参数是ROS下的sensor\_msgs/ImageConstPtr,和图像压缩类型(例如:sensor\_msgs::image\_encodings::RGB8)。其功能是实 现复制图像信息这样,得到副本,这样我们可以从副本的CvImage中提取cv::Mat类型的图像进行处理。 核心! cv\_bridge::toCvShare()方法:参数同上,但是这个函数只是共...
File"/opt/ros/humble/local/lib/python3.10/dist-packages/cv_bridge/core.py", line196,inimgmsg_to_cv2 raise CvBridgeError(e) cv_bridge.core.CvBridgeError: [8UC3] is not a color format. but [bgr8] is. The conversion does notmakesense ...
vision_opencv:安装 cv_bridge 和 image_geometry 的元包 为了将 ROS 2 与 OpenCV 一起使用,请参阅 cv_bridge 包中的详细信息。 程序适用于foxy/galactic/humble,windows/linux系统通用 在本教程中,将学习如何将 ROS 2 与流行的计算机视觉库OpenCV 接口的基础知识。 这些基础知识将提供在机器人应用程序中添加...
So I checked if the cv_bridge was installed, and it was installed. ros-humble-cv-bridge/jammy,now 3.2.1-1jammy.20230112.154415 amd64 [installed] Please let me know if anyone know about the problem. Expected behavior Actual behavior
from cv_bridge import CvBridge from sensor_msgs.msg import Image import cv2 class CameraPubNode(Node): def __init__(self, name): super().__init__(name) self.pub = self.create_publisher(Image, 'image_raw', 10) self.timer = self.create_timer(0.5, self.timer_callback) ...
current_frame=self.br.imgmsg_to_cv2(data,"bgr8")File"/opt/ros/humble/local/lib/python3.10/dist-packages/cv_bridge/core.py",line196,inimgmsg_to_cv2 raiseCvBridgeError(e)cv_bridge.core.CvBridgeError:[8UC3]is not a color format.but[bgr8]is.The conversion does not make sense ...
( Image,'image_raw', self.listener_callback,10) # 创建订阅者对象(消息类型、话题名、订阅者回调函数、队列长度) self.pub = self.create_publisher( ObjectPosition,"object_position",10) # 创建发布者对象(消息类型、话题名、队列长度) self.cv_bridge...