install deps

https://www.npmjs.com/package/opencv4nodejs#how-to-install https://www.npmjs.com/package/gm#getting-started

brew install imagemagick
brew install graphicsmagick
brew install imagemagick --with-webp
npm install gm

use to blur face on image via cli

node face_detection.js <path_to_image>

result

before:

after:

before:

after: