def getAverageSquare(image, center=(8,8)): """ Return the average color of a square of size 17x17 Return (maxint, maxint, maxint) if un-appropriate color found """ total = (0,0,0) x,y = center count = 0 tablePixelCount = 0 for r in range(x-8, x+9): for c in range(y-8, y+9): if ((r-x)**2+(c-y)**2 <= 8**2): # if the pixel is in circle curColor = image.getpixel((r,c)) # print curColor, col_diff(curColor, WHITE), col_diff(curColor, BLACK) if (is_table(curColor)): tablePixelCount += 1 if (tablePixelCount > 10): # if too much of the pixels are table then it's not a ball return (maxint, maxint, maxint) if (same(curColor, WHITE, 50) or same(curColor, BLACK, 20)): # exclude the label on each ball continue total = addColor(total, curColor) count += 1 if (count < 20): return (maxint, maxint, maxint) avgColor = (total[0]/count, total[1]/count, total[2]/count) return avgColor
def getBallPositions(image):
import time
width, height = image.size
change_color_three_balls(image, 0, image.size[0]-1, 0, image.size[1]-1)
founds = {}
foundPositions = []
step = 5
start_time = time.time()
timedOut = False
# find the white ball!
foundWhiteBall = False
for y in range(TABLE_TOP-5, TABLE_BOTTOM+5, 1):
if foundWhiteBall:
break
for x in range(TABLE_LEFT-5, TABLE_RIGHT+5, 1):
point = (x, y)
color = image.getpixel(point)
if same(BALLS_COLOR[0], color, 40):
is_center_point = True
for x1 in range(x - 5, x + 5):
if not same(BALLS_COLOR[0], image.getpixel((x1, y)), 80):
is_center_point = False
for y1 in range(y - 5, y + 5):
if not same(BALLS_COLOR[0], image.getpixel((x, y1)), 80):
is_center_point = False
if is_center_point:
foundPositions.append([0, point])
foundWhiteBall = True
print 'ball', 0, 'is centered at', point
break
for y in range(TABLE_TOP, TABLE_BOTTOM, step):
if timedOut:
break
for x in range(TABLE_LEFT, TABLE_RIGHT, step):
if time.time() - start_time > 4 and len(founds) > 0:
timedOut = True
break
color = image.getpixel( (x,y))
if (is_table(color) or is_hole((x,y))):
continue
posInFounds = map(lambda x: x[0], founds.values())
if not notInFoundBalls((x,y), posInFounds):
continue
nearestBallIndex = whichBall(color)
nearestBallColor = BALLS_COLOR[nearestBallIndex]
if nearestBallIndex == 1:
print("Probably ball 1 found!")
# BALL 0 IS DIFFERENT FROM THE REST!
if nearestBallIndex == 0:
continue
total = [0,0]
count = 0
for x1 in range(x-17, x+18):
for y1 in range(y-17, y+18):
c1 = image.getpixel((x1,y1))
if same(nearestBallColor, c1, 30) and not is_table(c1) and not is_hole((x1,y1)):
total[0] += x1
total[1] += y1
count += 1
if nearestBallIndex == 8 and count < 70:
continue
if nearestBallIndex == 7 and count < 70:
continue
if count == 0:
continue
ballCenter = total[0]/count, total[1]/count
founds[nearestBallIndex] = (ballCenter, count)
# add non-white balls to found position
for index in founds.keys():
foundPositions.append([index, founds[index][0]])
print 'ball', index, 'is centered at', founds[index][0]
return foundPositions
print 'BALLS_COLOR[' + str(i) + '] =', getAverageSquare(image)
i += 1
else:
image = Image.open('Balls/' + argv[1] + '.png')
# w, h = image.size
# change_color_three_balls(image, 0, w, 0, h)
change_color_three_balls(image)
positions = getBallPositions(image)
elif (len(argv) == 3):
filename = argv[2]
image = Image.open('Balls/' + filename + '.png')
if (argv[1] == 'filter_table'):
output = ImageDraw.Draw(image)
w, h = image.size
for x in range(0, w):
for y in range(0, h):
if is_table(image.getpixel((x,y))):
output.point((x,y), None)
image.save('Balls/' + filename + ' filtered.png')
elif (argv[1] == 'changeColor'):
w, h = image.size
# change_color_three_balls(image, 0, w, 0, h)
change_color_three_balls(image)
image.save('Balls/' + filename + ' changed.png')
else:
fp = Image.open('Balls/pic1.png')
# change_color_three_balls(image)
positions = getBallPositions(fp)
print "Done!"
