haar-loader

Allows wepback to import haar cascade xml (as produced by opencv_traincascade) as a JS module compatible with the haar-detect package (and https://github.com/mtschirs/js-objectdetect from which it is forked). The logic for the conversion was taken from this gist.

usage

// webpack config (provided you have no other XML files)
... 
  module: {
    rules: [
      {test: /\.xml$/, use: 'haar-loader'},
      ...

// inline
import classifier from "haar!cascade.xml";

footnotes

Webpack best practice says that loaders should do one thing only, and this kinda does two, parse XML, convert data to a classifier. Perhaps I should have used the xml-loader in a chain, but that seems excessive to require it of the users. This loader has a very specific use-case.