节点 Jimp |颜色旋转
简介 旋转修改器是 Nodejs | Jimp 中的内置颜色修改器,它将图像的色调旋转到给定的量,从-360 到 360。旋转到 0,360,-360 不会执行任何功能,因为它会将色调设置回以前的颜色。 语法:
image.color([
{ apply: 'spin', params: [value] }
]);
参数:
- 值–该参数存储要应用的色调旋转量。它的取值范围是-360 到 360。
输入图像:
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 spin modifier
image.color([{apply:'spin', params: [50]}])
.write('spin1.png');
}
main();
console.log("Image Processing Completed");
输出: 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 spin modifier
image.color([{apply:'spin', params: [50]}], function(err){
if (err) throw err;
})
.write('spin2.png');
}
main();
console.log("Image Processing Completed");
输出: 参考:https://www.npmjs.com/package/jimp
版权属于:月萌API www.moonapi.com,转载请注明出处