def main():
mouseDown = False
pygame.init()
screen = makeWindow((600, 400))
maxParticlesSlider = Slider(100, 1, 450, 10, 100, "maxParticles")
gravityXSlider = Slider(0.5, -0.5, 450, 50, 100, "gravityX")
gravityXSlider.t = 0.5
gravityYSlider = Slider(0.5, -0.5, 450, 90, 100, "gravityY")
gravityYSlider.t = 0.5
frictionSlider = Slider(1, 0, 450, 130, 100, "friction")
minSizeSlider = Slider(20, 5, 450, 170, 100, "minSize")
thetaSlider = Slider(360, 0, 450, 210, 100, "theta")
velocitySlider = Slider(10, 0.5, 450, 250, 100, "velocity")
emitter = Emitter(1, 15, 20, 5, 0.15, Particle, [200, 200])
walls = []
walls.append(Wall([10, 390], [390, 390], True))
walls.append(Wall([10, 10], [10, 390], True))
walls.append(Wall([10, 10], [390, 10], False))
walls.append(Wall([390, 390], [390, 10], True))
walls.append(Wall([200, 390], [390, 200], True))
running = True
while running:
screen.fill((0, 0, 0))
emitter.update(round(maxParticlesSlider.getValue()), round(minSizeSlider.getValue()), round(thetaSlider.getValue()), velocitySlider.getValue())
for particleI in emitter.particles:
particleI.update(walls, (gravityXSlider.getValue(), gravityYSlider.getValue()), frictionSlider.getValue())
pygame.draw.circle(screen, (255, 255, 255), (particleI.position.x, particleI.position.y), particleI.size, 1)
for wall in walls:
pygame.draw.line(screen, (255, 255, 255), (wall.start.x, wall.start.y), (wall.end.x, wall.end.y), 1)
for wall in walls:
pygame.draw.line(screen, (255, 0, 0), (wall.start.x, wall.start.y), (wall.start.x + wall.normal.x * 10, wall.start.y + wall.normal.y * 10), 1)
maxParticlesSlider.drawSlider(screen)
gravityXSlider.drawSlider(screen)
gravityYSlider.drawSlider(screen)
frictionSlider.drawSlider(screen)
minSizeSlider.drawSlider(screen)
thetaSlider.drawSlider(screen)
velocitySlider.drawSlider(screen)
if mouseDown:
pos = pygame.mouse.get_pos()
maxParticlesSlider.setT(pos[0], pos[1])
gravityXSlider.setT(pos[0], pos[1])
gravityYSlider.setT(pos[0], pos[1])
frictionSlider.setT(pos[0], pos[1])
minSizeSlider.setT(pos[0], pos[1])
thetaSlider.setT(pos[0], pos[1])
velocitySlider.setT(pos[0], pos[1])
pygame.display.update()
for event in pygame.event.get():
if event.type == pygame.QUIT:
running = False
if event.type == pygame.MOUSEBUTTONDOWN:
mouseDown = True
if event.type == pygame.MOUSEBUTTONUP:
mouseDown = False
time.sleep(0.0166)
class App(tk.Frame):
UPDATE_DELAY = 15
BRIGHT_RGB = cv2.COLOR_BGR2RGB
BRIGHT_HSV = cv2.COLOR_BGR2HSV
def __init__(self, parent, *args, **kwargs):
tk.Frame.__init__(self, parent, *args, **kwargs)
self.parent = parent
self.defaultVideoCapture = VideoCapture(0)
self.webcamCanvas = Canvas(self.parent, self.defaultVideoCapture)
self.maskCanvas = Canvas(self.parent, self.defaultVideoCapture)
self.lowHueSlider = Slider(self.parent, "Low Hue", 10, 0, 180)
self.highHueSlider = Slider(self.parent, "High Hue", 25, 0, 180)
self.lowSaturationSlider = Slider(self.parent, "Low Saturation", 100,
0, 255)
self.highSaturationSlider = Slider(self.parent, "High Saturation", 255,
0, 255)
self.lowValueSlider = Slider(self.parent, "Low Value", 20, 0, 255)
self.highValueSlider = Slider(self.parent, "High Value", 255, 0, 255)
self.button = tk.Button(self.parent,
text="Get histogram",
fg="blue",
command=self.drawHSVHHistogram)
self.button.pack(anchor=tk.CENTER)
self.updateFrame()
def updateFrame(self):
isFrameRead, frame = self.defaultVideoCapture.getFrame(self.BRIGHT_RGB)
if isFrameRead:
self.webcamCanvasPhoto = PIL.ImageTk.PhotoImage(
image=PIL.Image.fromarray(frame))
self.webcamCanvas.createImage(0, 0, self.webcamCanvasPhoto, tk.NW)
self.updateMask(frame)
self.parent.after(self.UPDATE_DELAY, self.updateFrame)
def drawHSVHHistogram(self):
isFrameRead, frame = self.defaultVideoCapture.getFrame(self.BRIGHT_RGB)
pixelColors = frame.reshape(
(np.shape(frame)[0] * np.shape(frame)[1], 3))
norm = colors.Normalize(vmin=-1., vmax=1.)
norm.autoscale(pixelColors)
pixelColors = norm(pixelColors).tolist()
hsvFrame = cv2.cvtColor(frame, cv2.COLOR_RGB2HSV)
h, s, v = cv2.split(hsvFrame)
fig = plt.figure()
axis = fig.add_subplot(1, 1, 1, projection="3d")
axis.scatter(h.flatten(),
s.flatten(),
v.flatten(),
facecolors=pixelColors,
marker=".")
axis.set_xlabel("Hue")
axis.set_ylabel("Saturation")
axis.set_zlabel("Value")
plt.show()
def updateMask(self, frame):
isMaskFrameRead, maskFrame = self.defaultVideoCapture.getFrame(
self.BRIGHT_HSV)
lowHue = self.lowHueSlider.getValue()
highHue = self.highHueSlider.getValue()
lowSaturation = self.lowSaturationSlider.getValue()
highSaturation = self.highSaturationSlider.getValue()
lowValue = self.lowValueSlider.getValue()
highValue = self.highValueSlider.getValue()
lower_hsv = np.array([lowHue, lowSaturation, lowValue])
higher_hsv = np.array([highHue, highSaturation, highValue])
hsv = cv2.cvtColor(frame, cv2.COLOR_BGR2HSV)
mask = cv2.inRange(hsv, lower_hsv, higher_hsv)
frame = cv2.bitwise_and(frame, frame, mask=mask)
#contour features
self.drawContours(frame)
self.maskCanvasPhoto = PIL.ImageTk.PhotoImage(
image=PIL.Image.fromarray(frame))
self.maskCanvas.createImage(0, 0, self.maskCanvasPhoto, tk.NW)
def drawContours(self, frame):
grayImg = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
retValue, threshImg = cv2.threshold(grayImg, 91, 255,
cv2.THRESH_BINARY)
contours = cv2.findContours(threshImg, cv2.RETR_TREE,
cv2.CHAIN_APPROX_SIMPLE)[-2]
for c in contours:
cv2.drawContours(frame, [c], 0, (255, 0, 0), 2)
