节点吉普 |颜色 蓝色
简介: xor修饰符是 Nodejs Jimp 中内置的颜色修饰符,它按给定数量修改给定图像的蓝色分量。
句法:
image.color([
{ apply: 'green', params: value }
]);
范围:
- value:此参数存储要修改图像蓝色的量。
输入图像:
示例 1:
// npm install --save jimp
// import jimp library to the environment
var Jimp = require('jimp');
// User-Defined Function to read the images
async function main() {
const image = await Jimp.read(
'https://media.geeksforgeeks.org/wp-content/uploads/20190328185307/gfg28.png');
// color function having blue modifier
image.color([{apply:'blue', params: [73]}])
.write('blue1.png');
}
main();
console.log("Image Processing Completed");
输出:
示例 2:cb(可选参数)
// npm install --save jimp
// import jimp library to the environment
var Jimp = require('jimp');
// User-Defined Function to read the images
async function main() {
const image = await Jimp.read(
'https://media.geeksforgeeks.org/wp-content/uploads/20190328185333/gfg111.png');
// color function having blue modifier
image.color([{apply:'blue', params: ['50']}], function(err){
if (err) throw err;
})
.write('blue2.png');
}
main();
console.log("Image Processing Completed");
输出:
参考: https://www.npmjs.com/package/jimp