cv-bridge

library1.13.0.post0pypypiunverified

CvBridge converts between ROS Image messages and OpenCV images. Current version is 1.13.0.post0. Release cadence follows ROS distributions.

ai-ml

pip install cv-bridge

package ↗homepage ↗

INSTALL

IMPORT

SIG · CV-BRIDGE

cv-bridge

ai-mlpythonv1.13.0.post0

harness data pending

Install & Compatibility

Where this runs

No compatibility data collected yet for this library.

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

CvBridge

✓ from cv_bridge import CvBridge

✗ from cv_bridge import CvBridge

Basic usage of CvBridge to convert between ROS Image messages and OpenCV images.

import cv2 from cv_bridge import CvBridge from sensor_msgs.msg import Image bridge = CvBridge() # Convert a ROS Image message to OpenCV image cv_image = bridge.imgmsg_to_cv2(image_message, desired_encoding='bgr8') # Convert back image_message = bridge.cv2_to_imgmsg(cv_image, encoding='bgr8')

Debug

Known issues

gotchaForgetting to specify `desired_encoding` results in default encoding which may not match expected format. Always specify encoding explicitly.

fix

Use `desired_encoding='bgr8'` (or appropriate encoding) in `imgmsg_to_cv2`.

affects: all

gotchaOpenCV uses BGR channel order, but most other libraries use RGB. Converting to/from ROS Image without specifying encoding can swap channels.

fix

Always set encoding to 'bgr8' for OpenCV compatibility.

affects: all

deprecatedThe `cv_bridge.boost.cv_bridge_boost` module is deprecated and may be removed in future versions.

fix

Use `from cv_bridge import CvBridge` instead of importing boost submodules.

affects: >=1.13.0

Upgrade

Version history

1.13.0.post0latest on PyPI · released Jan 31, 2024

Audit

Dependencies

opencv-pythonrequiredRequired for OpenCV image operations.

Agent activity

15 hits · last 30 days

node

OpenAI (training)

Resources

packagehttps://pypi.org/project/cv-bridge/ ↗

homepagehttp://www.ros.org/wiki/cv_bridge ↗