annotate src/clojureDemo/FaceDetect.clj @ 17:962e223bab0d

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author Robert McIntyre <rlm@mit.edu>
date Sun, 29 Aug 2010 23:44:55 -0400
parents 6d9bdaf919f7
children
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rlm@1 1 (ns clojureDemo.FaceDetect
rlm@1 2 (:import (javax.swing JFrame JLabel Timer)
rlm@1 3 (java.awt.event ActionListener KeyAdapter)
rlm@1 4 (java.awt Canvas Image Color)
rlm@1 5 (java.awt.image MemoryImageSource)
rlm@1 6 (hypermedia.video OpenCV)))
rlm@1 7
rlm@1 8 ;this will not work with the current setup;
rlm@1 9 ;it's just here as a reference for how to access
rlm@1 10 ;cameras.
rlm@1 11
rlm@1 12 (def frame-rate (int 1000/30))
rlm@1 13 (def width 640)
rlm@1 14 (def height 480)
rlm@1 15
rlm@1 16 (defn vision []
rlm@1 17 (doto (OpenCV.)
rlm@1 18 (.capture width height)
rlm@1 19 (.cascade OpenCV/CASCADE_FRONTALFACE_ALT)
rlm@1 20 ))
rlm@1 21
rlm@1 22 (defn capture-image [vis]
rlm@1 23 (.read vis)
rlm@1 24 (let [mis (MemoryImageSource. (.width vis) (.height vis)
rlm@1 25 (.pixels vis) 0 (.width vis))]
rlm@1 26 (.createImage (Canvas.) mis)))
rlm@1 27
rlm@1 28 (defn detect-face [vis]
rlm@1 29 (.detect vis 1.2 2 OpenCV/HAAR_DO_CANNY_PRUNING 20 20))
rlm@1 30
rlm@1 31 (defn capture-action [vis panel image faces]
rlm@1 32 (proxy [ActionListener] []
rlm@1 33 (actionPerformed
rlm@1 34 [e]
rlm@1 35 (dosync (ref-set image (capture-image vis))
rlm@1 36 (ref-set faces (detect-face vis)))
rlm@1 37 (.repaint panel))))
rlm@1 38
rlm@1 39 (defn panel [image faces]
rlm@1 40 (proxy [JLabel] []
rlm@1 41 (paint
rlm@1 42 [g]
rlm@1 43 (.drawImage g @image 0 0 nil)
rlm@1 44 (.setColor g Color/red)
rlm@1 45 (doseq [square @faces]
rlm@1 46 (.drawRect g
rlm@1 47 (.x square) (.y square)
rlm@1 48 (.width square) (.height square))))))
rlm@1 49
rlm@1 50 (defn key-listener [vis timer]
rlm@1 51 (proxy [KeyAdapter] []
rlm@1 52 (keyReleased
rlm@1 53 [e]
rlm@1 54 (.stop timer)
rlm@1 55 (.dispose vis))))
rlm@1 56
rlm@1 57 (defn main []
rlm@1 58 (let [vis (vision)
rlm@1 59 image (ref (capture-image vis))
rlm@1 60 faces (ref (detect-face vis))
rlm@1 61 panel (panel image faces)
rlm@1 62 timer (Timer. frame-rate (capture-action vis panel image faces))]
rlm@1 63 (.start timer)
rlm@1 64 (doto (JFrame.)
rlm@1 65 (.add panel)
rlm@1 66 (.addKeyListener (key-listener vis timer))
rlm@1 67 (.setSize width height)
rlm@1 68 (.show))))
rlm@1 69
rlm@1 70