eye-boof is a small library of image processing algorithms completely based on BoofCV. eye-boof aims to provide a much smaller set of functionalities than BoofCV, focused on simplicity and the most general algorithms. For applications beyond that, it's strongly recommended to use BoofCV directly.
Most of times we need to work with images that already exist, like files in the internet. To load a file from a URL, we can write something like this:
(require '[eye-boof.core :refer :all]
'[eye-boof.visualization :refer [show-image]])
(def color-img (-> "http://png-3.vector.me/files/images/8/0/807142/realistic_vector_eye_thumb.jpg"
(java.net.URL.)
(load-image->planar-u8)))
;; Visualize the image:
(show-image color-img)
color-img
;; #object[boofcv.struct.image.Planar 0x2762ce07 "boofcv.struct.image.Planar@2762ce07"]
Note that a Planar data structure is returned, which is the common data structure
to store the pixel intensities of color images. To know how many color channels this
image holds, we can type
(num-of-bands color-img)
;; 3what probably means a RGB image. To take a grayscale version of the image, we can take one of the color bands, like the Red:
(band! color-img 0)
;; #object[boofcv.struct.image.GrayU8 0x77ca00df "boofcv.struct.image.GrayU8@77ca00df"]
Other way of doing this is loading the image as a gray image (the intensities of each channel are averaged together):
(-> "http://png-3.vector.me/files/images/8/0/807142/realistic_vector_eye_thumb.jpg"
(java.net.URL.)
(load-image->gray-u8))
;; #object[boofcv.struct.image.GrayU8 0x77ca00df "boofcv.struct.image.GrayU8@77ca00df"]To save an image into a disk file, we can use the function save-image!
from the eye-boof.io namespace. The string path of the file tells the format
representation of the image, like jpg or png for example. The supported
formats are the same supported by javax.imageio.ImageIO, the underlying class
to read/write image files.
(save-image! color-img "color_eye.jpg")
;; nilAdditional examples and documentation can be found in the wiki pages.
Copyright © 2013 Andre Boechat
Distributed under the Eclipse Public License, the same as Clojure.