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@apiotrowski312/image-loader

v1.0.1

Published

Load an image (or batch of images) and put them in Canvas for you. Pretty useful for machine learning with NodeJS and TensorFlow.

Downloads

2

Readme

@apiotrowski312/image-loader

Load an image (or batch of images) and put them in Canvas for you. Pretty useful for machine learning with NodeJS and TensorFlow. Should work fine with any node thanks to @babel/polyfil.

Installation

This is a Node.js module available through the npm registry. It can be installed using the npm or yarn command line tools.

npm install @apiotrowski312/image-loader --save

Usage

This module assumes that, you have all images in one directory. All of the images with the same naming convention (for creating labels).

Basic use

import LoadImages from '../src/index';

const imageLoader = new LoadImages('./images', { one: 'first', two: 'second'}, {silent: true, batchSize: 10});
const loadOneImage = imageLoader.loadLabelAndImage();
const loadBatchOfImages = imageLoader.loadBatchSizeImages();

Detailed options

new LoadImages(PATH, LABELS, OPTIONS);
  • PATH - path as a string
  • LABELS - Object, with key - value pairs. Each label should match your labelRegExp option.

For example, if you have a directory with images named like (and you didn't change labelRegExp):

one.1.jpg, one.2.jpg, two.jpg, two.xxx.qqq.png,

then your labels key should look simmilar to following example. Values can be different, following example would work well with TensorFlowJS.

const labels = {
  one: [1, 0],
  two: [0, 1],
}
  • OPTIONS

| KEY | DEFAULT | DESCRIPTION | | :-: | :-: | :-: | | shuffle | true | shuffle order of loading images if true | | shufflePhrase | 'phrase' | shuffle phrase for shuffle-seed | | batchSize | 10 | how much images do you want load in one batch| | trainSize | 100 | how much images do you want load to the script | | labelRegExp | RegExp(/[^.]*/) | regexp for matching labels from img filenames | | extentionsRegExp| RegExp(/\.(jpg|png|jpeg)$/) | regexp for matching images extentions (any other extention won't be loaded) | | silentMode | true | if true then there will be no console.logs(). Usesfull for debugging. |

Tests

npm install
npm test

Dependencies

Dev Dependencies

To Do

  • [ ] add JSDoc (or simmilar)
  • [ ] remove trainSize option
  • [ ] change throwing Errors to something else (maybe return undefined?)

License

MIT