################################################################################################### 
# Procedure to detect the puck light spots.
################################################################################################### 


img.backgroundEnabled=False
led_ctrl1.write(0.0)
led_ctrl2.write(0.0)
time.sleep(0.1)
img.waitNext(100)

background = average_frames(5)

#img.backgroundImage=background.bufferedImage
#img.captureBackground(1,0)
#show_panel(img.backgroundImage)
#img.backgroundEnabled = True

led_ctrl1.write(0.40)
led_ctrl2.write(0.40)
time.sleep(0.1)
img.waitNext(100)
image = average_frames(5)

led_ctrl1.write(0.0)
led_ctrl2.write(0.0)

op_image(image, background, "subtract", float_result=True, in_place=True)


renderer = show_panel(image.getBufferedImage())
renderer.clearOverlays()

invert(image)
auto_threshold(image, method = "MaxEntropy") #Tested ok:  MaxEntropy, Triangle, Yen
#binary_open(aux)
(r,output) =  analyse_particles(image, 150,1000, 
        fill_holes = True, exclude_edges = False, print_table=False,
        output_image = "outlines", minCirc = 0.3
        , maxCirc = 1.0)

points = ""
npoints = 0
x=[]
y=[]
for row in range (r.counter):
    if in_roi(r.getValue("XM",row), r.getValue("YM",row)):
        #x, y = int(r.getValue("XM", row))+roi[0], int(r.getValue("YM", row))+roi[1]
        x.append(int(r.getValue("XM", row)))
        y.append(int(r.getValue("YM", row)))
        points = points + " (" + str(x[-1]) + ", "  + str(y[-1]) + ")"
        npoints = npoints + 1
        renderer.addOverlay(Crosshairs(Pen(java.awt.Color.MAGENTA),  java.awt.Point(x[-1],y[-1]), java.awt.Dimension(15,15)))

print str(npoints) + " - " + points   
print r

print x
print y

offset = int(math.sqrt(1000)/2)
cv = (min(x)-offset, min(y)-offset, max(x)+offset, max(y)+offset)
renderer.addOverlay(Rect(Pen(java.awt.Color.MAGENTA),  java.awt.Point(cv[0], cv[1]), java.awt.Dimension(cv[2]-cv[0],cv[3]-cv[1])))
#show_panel(output.getBufferedImage())

#img.backgroundEnabled=False