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I searched this topic before but still I couldnt find the answer. I'm trying a guide on Object Detection using tensorflow on Raspberry Pi. I'm currently using Raspberry Pi3. So I followed a guide and this is the place I got stuck, I stuck at installing opencv-python, no matter what I try it always comes out with

Could not find a version that satisfies the requirement opencv-python

The Raspbian Version I'm currently on is Raspbian Buster 10/7/2019 Python 2.7 Python 3.7.3

I'm not sure whether if it's the version of tensorflow/python is making me unable to install opencv-python. The current version of tensorflow on my RPi is 1.13.

I tried removing python 3.7 and installed python 3.5, but that led me to boot loop so I had to reinstall Raspbian again. I tried 

sudo pip3 install opencv-contrib-python
pip3 install opencv-python
pip install opencv-python

None of them succeeded

Before installing opencv-python i need to install some dependencies, these codes run successfully ,

sudo apt-get install libjpeg-dev libtiff5-dev libjasper-dev libpng12-dev
sudo apt-get install libavcodec-dev libavformat-dev libswscale-dev libv4l-dev
sudo apt-get install libxvidcore-dev libx264-dev
sudo apt-get install qt4-dev-tools

pip3 install opencv-python (this is where I failed)

ERROR: Could not find a version that satisfies the requirement opencv-python(fromversion:)

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4
  • Tried pip3 install python-opencv? Commented Aug 1, 2019 at 15:51
  • @Jammy Dodger Is it the same? Commented Aug 1, 2019 at 15:56
  • @Jammy no i havent tried, is it the same? Commented Aug 1, 2019 at 15:56
  • I've heard it mentioned, and I believe it's the same Commented Aug 1, 2019 at 16:01

3 Answers 3

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Try upgrading your pip:

pip install --upgrade pip
pip install opencv-python

If that doesn't work, you may have to download the open-cv source code directly and use that instead: https://github.com/skvark/opencv-python. You will have to compile and install the source yourself.

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I'll try now and provide update. But I dont know how to install from source, from the link you provided... Could you help me with that?
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I could install OpenCV for buster on a 3B using apt:

sudo apt-get install python3-opencv

Depending on what you're doing you might need these other packages:

sudo apt-get install libcblas-dev libhdf5-dev libhdf5-serial-dev libatlas-base-dev libjasper-dev libqtgui4 libqt4-test
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0

Try this:

pip3 install --upgrade setuptools pip
pip3 install opencv-python

I hope it works out.

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Im not sure if it is because the Raspbian i installed is Raspbian Buster, and not Stretch which caused this failure. Nevertheless I installed thru source file...

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