节点吉普 |模糊
简介: blur()函数是 Nodejs 中的内置函数| Jimp 使用模糊算法产生与高斯模糊相似的效果。
句法:
blur(r, cb())
范围:
- r - 此参数存储模糊的半径。
- cb – 这是编译完成时调用的可选参数。
输入图像:
设置环境:
npm init -y
安装依赖:
npm install jimp
示例 1:
javascript
// 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');
image.blur(5)
.write('blur1.png');
}
main();
console.log('Image Processing Completed');
javascript
// 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');
image.blur(2, function(err){
if (err) throw err;
})
.write('blur2.png');
}
main();
console.log('Image Processing Completed');
输出:
示例 2:使用 cb(可选参数)
javascript
// 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');
image.blur(2, function(err){
if (err) throw err;
})
.write('blur2.png');
}
main();
console.log('Image Processing Completed');
输出:
参考: https://www.npmjs.com/package/jimp