Mercurial > lasercutter

     1 (ns clojureDemo.FaceDetect

     2   (:import (javax.swing JFrame JLabel Timer)

     3 	   (java.awt.event ActionListener KeyAdapter)

     4 	   (java.awt Canvas Image Color)

     5 	   (java.awt.image MemoryImageSource)

     6 	   (hypermedia.video OpenCV)))

     7 

     8 ;this will not work with the current setup;

     9 ;it's just here as a reference for how to access

    10 ;cameras.

    11 

    12 (def frame-rate (int 1000/30))

    13 (def width 640)

    14 (def height 480)

    15 

    16 (defn vision []

    17   (doto (OpenCV.)

    18     (.capture width height)

    19     (.cascade OpenCV/CASCADE_FRONTALFACE_ALT)

    20 ))

    21 

    22 (defn capture-image [vis]

    23   (.read vis)

    24   (let [mis (MemoryImageSource. (.width vis) (.height vis)

    25 				(.pixels vis) 0 (.width vis))]

    26     (.createImage (Canvas.) mis)))

    27 

    28 (defn detect-face [vis]

    29   (.detect vis 1.2 2 OpenCV/HAAR_DO_CANNY_PRUNING 20 20))

    30 

    31 (defn capture-action [vis panel image faces]

    32   (proxy [ActionListener] []

    33     (actionPerformed

    34      [e]

    35      (dosync (ref-set image (capture-image vis))

    36 	     (ref-set faces (detect-face vis)))

    37      (.repaint panel))))

    38 

    39 (defn panel [image faces]

    40   (proxy [JLabel] [] 

    41     (paint

    42      [g]

    43      (.drawImage g @image 0 0 nil)

    44      (.setColor g Color/red)

    45      (doseq [square @faces]

    46        (.drawRect g

    47 		  (.x square) (.y square)

    48 		  (.width square) (.height square))))))

    49 

    50 (defn key-listener [vis timer]

    51   (proxy [KeyAdapter] [] 

    52     (keyReleased 

    53      [e]

    54      (.stop timer)

    55      (.dispose vis))))

    56 

    57 (defn main []

    58   (let [vis   (vision)

    59 	image (ref (capture-image vis))

    60 	faces (ref (detect-face vis))

    61 	panel (panel image faces)

    62 	timer (Timer. frame-rate (capture-action vis panel image faces))]

    63     (.start timer)

    64     (doto (JFrame.)

    65       (.add panel)

    66       (.addKeyListener (key-listener vis timer))

    67       (.setSize width height)

    68       (.show))))

    69 

    70
author	Robert McIntyre <rlm@mit.edu>
date	Fri, 20 Aug 2010 00:32:44 -0400
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