Introduction

Starting with release 2.0, OpenCV has a new Python interface. This replaces the previous SWIG-based Python interface .

Some highlights of the new bindings:

• single import of all of OpenCV using import cv
• OpenCV functions no longer have the “cv” prefix
• simple types like CvRect and CvScalar use Python tuples
• sharing of Image storage, so image transport between OpenCV and other systems (e.g. numpy and ROS) is very efficient
• complete documentation for the Python functions

This cookbook section contains a few illustrative examples of OpenCV Python code.

• Cookbook
  • Convert an image
  • Resize an image
  • Compute the Laplacian
  • Using GoodFeaturesToTrack
  • Using GetSubRect
  • Using CreateMat, and accessing an element
  • ROS image message to OpenCV
  • PIL Image to OpenCV
  • OpenCV to PIL Image
  • NumPy and OpenCV
  • OpenCV to pygame
  • OpenCV and OpenEXR