44 lines
862 B
Markdown
44 lines
862 B
Markdown
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bmp-js
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======
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A pure javascript Bmp encoder and decoder for node.js
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Supports all bits decoding(1,4,8,16,24,32) and encoding with 24bit.
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##Install
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$ npm install bmp-js
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How to use?
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---
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###Decode BMP
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```js
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var bmp = require("bmp-js");
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var bmpBuffer = fs.readFileSync('bit24.bmp');
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var bmpData = bmp.decode(bmpBuffer);
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```
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`bmpData` has all properties includes:
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1. fileSize,reserved,offset
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2. headerSize,width,height,planes,bitPP,compress,rawSize,hr,vr,colors,importantColors
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3. palette
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4. data-------byte array order by ABGR ABGR ABGR,4 bytes per pixel
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###Encode RGB
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```js
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var bmp = require("bmp-js");
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//bmpData={data:Buffer,width:Number,height:Height}
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var rawData = bmp.encode(bmpData);//default no compression,write rawData to .bmp file
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```
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License
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---
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U can use on free with [MIT License](https://github.com/shaozilee/bmp-js/blob/master/LICENSE)
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