博客

2 Node.js轻量级跨平台图像编解码库

images

npm 地址


https://www.npmjs.com/package/node-images

var images = require("images");
 
images("input.jpg")                     //Load image from file 
                                        //加载图像文件
    .size(400)                          //Geometric scaling the image to 400 pixels width
                                        //等比缩放图像到400像素宽
    .draw(images("logo.png"), 10, 10)   //Drawn logo at coordinates (10,10)
                                        //在(10,10)处绘制Logo
    .save("output.jpg", {               //Save the image to a file,whih quality 50
        quality : 50                    //保存图片到文件,图片质量为50
    });

2 GraphicsMagick和ImageMagick用于node

gm

先要安装

GraphicsMagick

或

ImageMagick

安装后如果报错类似 Could not execute GraphicsMagick/ImageMagick: gm “convert” “./1.jpg” “-resiz 建议重启电脑再试试

var fs = require('fs')
  , gm = require('gm');
 
// resize and remove EXIF profile data
gm('/path/to/my/img.jpg')
.resize(240, 240)
.noProfile()
.write('/path/to/resize.png', function (err) {
  if (!err) console.log('done');
});

https://www.npmjs.com/package/gm

node gm github

nodejs gm官方文档