ndarray-warp
============
Inverse image warping operations for ndarrays.

Example
=======

``javascript
//Load input image
var lena = require("luminance")(require("lena"))

//Allocate storage for result
var result = require("zeros")([512, 512])

//Apply warp
require("ndarray-warp")(result, lena, function(out, inp) {
var dx = inp[0] - 256
var dy = inp[1] - 256
var r = Math.sqrt(dx dx + dy dy)
var theta = Math.atan2(dy, dx)

out[0] = 0.9 r Math.cos(theta + 0.01 * r) + 256
out[1] = 0.7 r Math.sin(theta + 0.01 * r) + 256
})

//Save the result to stdout
require("save-pixels")(result, "png").pipe(process.stdout)
`

Which produces the following image:

Install
=======

npm install ndarray-warp



$3

Applies an inverse warp to an image

* output is an ndarray image that gets the result of applying the warp
* input is an ndarray iamge that is warped
* map(result, coord) is a mapping from the coordinates of out image to input image.

+ result gets the resulting coordinate in input
+ coord is the coordinate in output`

Credits

(c) 2013 Mikola Lysenko. MIT License