Prerequisites

• Install GoCV, full instruction here:

go get -u -d gocv.io/x/gocv

$GOPATH may be not set, but the rest of the path is fine (search for the right path on your system):

cd $GOPATH/src/gocv.io/x/gocv

This takes a few minutes:

make install

• Ensure your terminal support 24-bit colors, you can use tools/ for testing

Usage

go build . && ./termcam 0

• Replace 0 with the index of your video device (usually, from 0 to 6), or with a full path to it

Features

• Picture size and quality adjust to your terminal size
• '▀' (Unicode 0x2580) is used to maximize vertical resolution, but any other symbol can be used (check in source code)

Limitations

• It's video rendering in terminal - entire screen is refilled 33 times a second, so it may be slow
• Looks like there's no good way to avoid extra line below the picture, otherwise scrolling happens
• Periodically I'm receiving empty frames from my devices (tested with two cameras): see error reading from webcam: empty frame. You may want to remove the line, which prints this error to avoid flickering. I've left it for diagnostic purposes.