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imaje

A Clojure library designed to do image processing in functional style.

This includes:

  • immap
  • imreduce
  • imrender

All of those functions are build around samplers concept, which provides a simplified way for accessing pixels of the image. In general, this is just a function which gets two argument x and y position of pixel and return the value of that pixel.

Also, imaje provides basic wrapper around BufferedImage and ImageIO, so you can:

  • create new images
  • access pixel data
  • load/save

Installation

Add the following to your Leiningen :dependencies:

[imaje "0.1.0"]

Usage

The top level interface is in imaje.core.

   (use 'imaje.core)

For example, you can create and fill randomly an 640x480 image using imrender function:

(imrender (fn [x y] (rand-int 256)) 640 480)

or you can create image negative with immap:

(immap (fn [x y sampler] (- 256 (sampler x y))) img)

or build a histogram of image with imreduce function:

(imreduce (fn [accum x y sampler] (update-in accum [(sampler x y)] inc)) (vec (repeat 256 0)) img)

License

Copyright © 2013 Volodymyr Kysenko

Distributed under the Eclipse Public License, the same as Clojure.