luminance

luminance
=========
Converts an RGB image into a grayscale luminance image. This is built on the ndarray library.

Example

``javascript
//Load up a test image
var lena = require("lena")

//Convert to grayscale
var grayscale_lena = require("luminance")(lena)

//Write the resulting png to stdout
require("save-pixels")(grayscale_lena, "png").pipe(process.stdout)
`

Which creates the following image:

Install

npm install luminance



API

`javascript
var luminance = require("luminance")
`

$3

Returns A gray scale version of img

$3

Returns A gray scale version of img, the result is stored in result`

$3

Returns A gray scale image with red, green and blue channels in the given ndarrays

$3

Returns A luminance image of red/green/blue with result stored in result.

Credits

(c) 2013 Mikola Lysenko. MIT License