All Questions
8 questions
14votes
2answers
25kviews
Using OpenCV with RasPiCam and python
Has any one been able to get OpenCV to directly play video from the RasPiCam board using python? I've seen some projects involving workarounds, but what I'm interested in is being able to use the ...
- 243
1vote
2answers
3kviews
Can't install Opencv on raspberry pi 4
I'm using the raspberry pi 4 (pip version: pip 22.3.1, python version: 3.9.2) on visual studio code and whenever I enter the command pip install opencv-python in the terminal, after 40 mins I get the ...
10votes
3answers
20kviews
ERROR: Environment '/home/pi/.virtualenvs/cv' does not contain an activate script
I am trying to install opencv 4 on my raspberry pi 4 using these instructions from this website but I have come across an error when I run the command mkvirtualenv cv -p python3. The error is found ...
- 189
8votes
2answers
30kviews
installing OpenCV 3.0 on raspberry pi b+
Is it possible to install OpenCV 3.0, opencv python on Raspberry pi b+? How to install and are there any precompiled binaries available ?
- 335
4votes
1answer
2kviews
How to cross-compile OpenCV and copy python bindings?
I want to install dlib and OpenCV on Raspberry Pi 2. As you know, if I try to compile those on the Pi directly, then a) It takes a lot of time (3-4 hours for dlib and then 2 for OpenCV) and b) It is ...
- 211
2votes
1answer
11kviews
how to increase fps for raspberry pi for object detection
I'm having low fps for real-time object detection on my raspberry pi I trained the yolo-darkflow object detection on my own data set using my laptop running windows 10. When I tested the model for ...
- 21
2votes
2answers
3kviews
trying to run 6 USB cameras simultaneously on a single Raspberry Pi 3B+ with add-on 4 port USB hub with external power
We are trying to simultaneously run 6 cameras on a Raspberry Pi 3B+ with an add-on 4 port USB hub that has an external power supply. The cameras are set at 15 FPS with a colour image size of 640 X 480....
1vote
1answer
6kviews
Access numpy array in openCV
Using the documentation here here, the code import time import picamera import picamera.array import cv2 with picamera.PiCamera() as camera: camera.start_preview() time.sleep(2) with ...
