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11

How to install opencv 2.9 for python?

rated 0 times [ 11] [ 0] / answers: 1 / hits: 65176 / 1 Year ago, tue, march 7, 2023, 1:15:52

I have been having the exact same problem as described in this post
and someone in the answers suggested that you upgrade to opencv version 2.9. I was wondering how do that? I installed the version I have now by doing

sudo apt-get install python-opencv

Also, how can I check what version I'm running now? I'm on Ubuntu 13.10

EDIT:

After girardengo answer I know I'm on version 2.4.5 Thank you for that!

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answered 1 Year ago oleard · Accepted Answer

Before installing the development version of OpenCV, I'd suggest to use this code to set the capture size (from the link you posted I assume you're using python):

import cv2



cap = cv2.VideoCapture(device_no)

cap.set(cv2.cv.CV_CAP_PROP_FRAME_WIDTH, width)

cap.set(cv2.cv.CV_CAP_PROP_FRAME_HEIGHT, height)

To install the development version of opencv (3.0.0-dev today) please follow the steps below:

cd $HOME

mkdir opencv_src

cd opencv_src/

git clone https://github.com/Itseez/opencv.git

cd opencv/

mkdir release

cd release/

cmake -D CMAKE_BUILD_TYPE=RELEASE -D CMAKE_INSTALL_PREFIX=/usr/local ..

make

sudo make install