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README.md

bmp-js

A pure javascript Bmp encoder and decoder for node.js

Supports all bits decoding(1,4,8,16,24,32) and encoding with 24bit.

##Install

$ npm install bmp-js

How to use?

###Decode BMP
```js
var bmp = require("bmp-js");
var bmpBuffer = fs.readFileSync('bit24.bmp');
var bmpData = bmp.decode(bmpBuffer);

`bmpData` has all properties includes:

1. fileSize,reserved,offset

2. headerSize,width,height,planes,bitPP,compress,rawSize,hr,vr,colors,importantColors

3. palette

4. data-------byte array order by ABGR ABGR ABGR,4 bytes per pixel


###Encode RGB
```js
var bmp = require("bmp-js");
//bmpData={data:Buffer,width:Number,height:Height}
var rawData = bmp.encode(bmpData);//default no compression,write rawData to .bmp file

License

U can use on free with MIT License