Install OpenCV Python on Raspberry Pi

Step-wise illustration to set up OpenCV Python on Raspberry Pi 3.

Please comment below for any queries or suggestions.

[jesusbanda]

Very useful, I had been trying with many other tutorials and any of them were as clear and useful as this. Thanks

[giegie]

use this step 8 to speed up the process for make -j4
1. sudo nano /etc/dphys-swapfile
2. Change the value CONF_SWAPSIZE  variable to 2048
3. Ctrl + X, press Y and then enter
4. sudo /etc/init.d/dphys-swapfile restart

[zigazagateam]

Successfully installed. Brilliant job. Many thanks for sharing.

[mathanagopal]

I got Error ( make : *** makefile :163:all ) Error 2 when I use make -j4, how to fix this

[entity]

Ok im at the very end but it sais no such file or directory is this optional or required?

[anamarieesclito]

I'm in the last step of procedures, in step 10, but it said import error. Can someone help me with this please?😭

[christiangalang]

it does not reach 100% in make -j4 . It is only to 84%

[tanushreeb]

I followed all the steps properly, after make -j4 all the targets are built except for opencv_python3.
Is there something to be added anywhere? Please let me know

[lunapresentsstuff]

Hi, I got an error when I used the command "make -j4" -> make *** no targets specified and no makefile found. stop

[sujoychatterjee]

after this installation can i import cv2 to python in my pi? in the programming channel, not in terminal

[jaisantosh]

Hi can anybody tell me what did he press at 7:48 to 7:55?? I'm stuck

[rodrigofernandes]

I'm running this in my raspberry Pi Zero ( without connecting it with my PC ) and step 9 is taking a lot of time ( it progresses 1% in 1 hour... ). I'm already running only make and not make -j4 since the latter got stuck. Any tips to make this faster?

[animadoarts]

I have python already installed....
Should i start with the 5th step?

[richardshiawase]

Fatal error:gtk/gtk.h:no such file or directory during building make. I use the same version opencv as urs

[koine]

i can't compile and install opencv(step9) ->make -j4

[farukz.]

cmake command does not found do anybody knows why

[moaz_travel]

thank you so much for sharing, Its works good job

[khalilullah]

make: *** [Makefile:163: all] Error 2
Facing issue when run make -j4
Can you help me?

[nainac]

its been more than 3 hours and only 40%of make -j4 is done....
what should i do? please reply...

[mrreeguy]

Hello I have a question I am having an error that having lost directory