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image-filter-grayscale
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Readme
Small library to apply a grayscale transformation to a image relying on image-filter-core
handle the transformation and distribute work with webworkers.
Other related modules:
npm install image-filter-grayscale --save
It applies a grayscale transformation to a base64 image. If you want a more complete library, please check image-filters that wraps this and other libraries to provide a more complete suite of image filters.
This library consumes ImageData and outputs ImageData in a Promise. You can use image-filter-core
to convert from ImageData to dataURL.
JS file:
var imageGrayscale = require('image-grayscale');
var nWorkers = 4;
imageGrayscale(IMAGE_DATA, 4);
var element = document.getElementById('#dummy-image');
var canvas = document.createElement('canvas');
var context = canvas.getContext('2d');
context.drawImage(element, 0, 0 );
var imageData = context.getImageData(0, 0, element.width, element.height);
var element = document.createElement('img');
element.setAttribute('src', options.url);
//...repeat process from the previous answer
var imageFilterCore = require('image-filter-core');
var nWorkers = 4;
imageGrayscale(IMAGE_DATA, nWorkers)
.then(function (result) {
// result === ImageData object
var image = document.createElement('img');
image.setAttribute('src', imageFilterCore.convertImageDataToCanvasURL(imageData));
target.appendChild(image);
});
FAQs
Small library to apply a grayscale transformation to a image
The npm package image-filter-grayscale receives a total of 2 weekly downloads. As such, image-filter-grayscale popularity was classified as not popular.
We found that image-filter-grayscale demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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