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hand_detection.py

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+import SimpleCV as s
+import math as m
+import random
+c=s.Camera()
+d=s.Display()
+i1=c.getImage().pixelize()
+avgX=0
+absX=0
+ballPos=[320,240]
+ballSpeedX=10+random.randint(0,5)
+ballSpeedY=10+random.randint(0,5)
+print ballPos
+ballRadius=10
+while True:
+    i2=c.getImage().pixelize()
+    i3=(i2-i1)+(i1-i2)
+    i1=i2
+    i3=i3.binarize(50).erode(3).dilate(3)
+    i3=i3.invert().flipHorizontal()
+    f=i3.findBlobs(minsize=200,threshval=50)
+    if f:
+        totalSum=0
+        areaSum=0
+        for temp in f:
+            areaSum+=temp.area()
+            totalSum+=temp.area()*temp.x
+        if areaSum!=0:
+            avgX=totalSum/areaSum
+        f.draw(width=3)
+    else:
+        print("None")
+    x_diff=(avgX-absX)
+    if m.copysign(x_diff,1)>=40:
+        absX+=m.copysign(40,x_diff)
+    else:
+        absX=avgX
+    #i3.drawText(text="Avg. X="+str(avgX),x=avgX,color=s.Color.AQUAMARINE)
+    i3.drawRectangle(absX-50,50,100,20)
+    print ballPos
+    if ballPos[0]-ballRadius<150:
+        ballSpeedX=-ballSpeedX
+    if ballPos[0]+ballRadius>640-150:
+        ballSpeedX=-ballSpeedX
+    if ballPos[1]+ballRadius>480:
+        ballSpeedY=-ballSpeedY
+    if (ballPos[0] in range(int(absX)-50,int(absX)+50)) and ((ballPos[1]-ballRadius) in range(50,70)):
+        ballSpeedY=-ballSpeedY
+    elif ballPos[1]-ballRadius<0:
+        print("Quitting "+str(ballPos))
+        quit()
+    ballPos[0]+=ballSpeedX
+    ballPos[1]+=ballSpeedY
+    i3.drawCircle(tuple(ballPos),ballRadius,color=s.Color.AQUAMARINE)
+    #print(absX)
+    i3.save(d)