This is a small package for node.js to allow the analysis of image data in a Buffer, and return mime-type, and image dimensions for the data.
It is designed to be fast, completely written in javascript.
Currently it supports Png, Jpeg, Gif and Swf(uncompressed, deflate and LZMA) analysis.
To install imageinfo into your project, use npm install imageinfo, then it's simply a matter of calling it with the buffer object containing your image, like this:
var imageinfo = require('imageinfo'),
fs = require('fs');
fs.readFile('testimage', function(err, data) {
if (err) throw err;
imageinfo(data, function (info) {
console.log("Data is type:", info.mimeType);
console.log("Size:", data.length, "bytes");
console.log("Dimensions:", info.width, "x", info.height);
});
});
Project code is released under CC0 license:
