Rotates a 2D ndarray

npm install image-rotate
6 downloads in the last week
17 downloads in the last month


Rotates and translates a 2D ndarray.


npm install image-rotate


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

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

//Rotate the image
require("image-rotate")(result, lena, Math.PI / 6.0)

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



Rotates an image by theta radians about the point iX,iY in the source image and translated to the point oX,oY in the output image.

  • output is an array that gets the output of rotating the image
  • input is the image which is rotated
  • theta is the amount to rotate by in radians
  • iX,iY is the point to rotate about (default center of input)
  • oX,oY is the image of the point to rotate about in output image (default center of output)

Returns output


(c) 2013 Mikola Lysenko. MIT License

npm loves you