0.2.2 • Published 3 years ago
image-utilites v0.2.2
Image Utilites
Utilites for working with Blob of image.
Installation
npm i image-utilites
yarn add image-utilites
Playground
https://shevsky.github.io/image-utilites/
ImageColorTypeReader
Can detect is image is grayscale or colored.
import { ImageColorTypeReader } from 'image-utilites';
const imageColorTypeReader = new ImageColorTypeReader();
imageColorTypeReader.read(file).then(colorType => console.log(colorType)); // Don't forget to catch errors!Configuration
ImageColorTypeReader constructor takes a config object.
| Name | Description | Type | Default value |
|---|---|---|---|
| grayscaleThreshold | By default, reader determines is an image is grayscale if red === green === blue. This parameter allows to set the max difference between colors to assume that image is grayscale. | number (0-255) | 0 |
| minifySize | When reader starting to work it will resize source image to width and height not longer that passed value in order to reduce a pixels count. | number | 300 |
Result
ImageColorTypeReader returns a promise that resolves grayscale or colored (enum IMAGE_COLOR_TYPE).
MimeTypeReader
Can provide mime type of image.
import { MimeTypeReader } from 'image-utilites';
MimeTypeReader.read(file).then(mimeType => console.log(mimeType)); // Don't forget to catch errors!Result
MimeTypeReader returns a promise that resolves image/gif, image/jpeg, application/pdf, image/png, image/webp (enum MIME_TYPE).