RaspberryPI OpenCV installation problem in HTTP responce (Awaiting response) 404 Not Found. - Raspberry Pi Forums

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i have problem in installing opencv on rpi. have problem in grabbing repository github.com. @ first tried only
didnot work me , found stackoverflw , added following, error same both.
pi@raspberrypi:/ $ cd ~
pi@raspberrypi:~ $ wget -o opencv_contrib.zip https://github.com/itseez/opencv_contrib/archive/3.1.0 --header "referer:www.github.com"
--2017-10-17 11:10:33-- https://github.com/itseez/opencv_contrib/archive/3.1.0
resolving github.com (github.com)... 192.30.253.113, 192.30.253.112
connecting github.com (github.com)|192.30.253.113|:443... connected.
http request sent, awaiting response... 404 not found
2017-10-17 11:10:33 error 404: not found.



raspberrypi



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