Node Jimp | Color grayscale
Introduction
The grayscale modifier is an inbuilt color modifier in Nodejs | Jimp which desaturate an image color into grayscale depending on a given amount, from 0 to 100.
Syntax:
image.color([
{ apply: 'grayscale', params: [value] }
]);
Parameter:
- value – This parameter stores the amount of grayscale to apply. It takes values from 0 – 100.
Input Images:
Example 1:
javascript
var Jimp = require( 'jimp' );
async function main() {
const image = await Jimp.read
image.color([{apply: 'grayscale' , params: [50]}])
.write( 'grayscale1.png' );
}
main();
console.log( "Image Processing Completed" );
|
Output:
Example 2: cb (optional parameters)
javascript
var Jimp = require( 'jimp' );
async function main() {
const image = await Jimp.read
image.color([{apply: 'grayscale' , params: [50]}], function (err){
if (err) throw err;
})
.write( 'grayscale2.png' );
}
main();
console.log( "Image Processing Completed" );
|
Output:
Reference: https://www.npmjs.com/package/jimp
Last Updated :
03 Jan, 2022
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