def do_effect(self, painting):
"""Process an image so that it is made up of circles.
This method processes an image so that it is made up of circles
of a supplied radius, on top of a given background colour.
The color of the circles correspond to the pixel that would have
been at its centre.
Arguments:
painting -- the painting.Painting that the effect should be applied to
"""
distance_between_centres = self.diameter + self.gap
# Half of distance so that circles fully visible on top and left edges
first_centre = distance_between_centres/2
canvas = painting.copy()
canvas.clear_image(self.background)
for x in range(first_centre, painting.width, distance_between_centres):
for y in range(first_centre, painting.height, distance_between_centres):
centre = point.Point(x, y)
centre_color = painting.get_pixel_color(centre)
circle = shape.Circle(centre, self.radius, centre_color)
circle.draw(canvas)
painting.img = canvas
def do_effect(self, painting):
"""Process an image so that it is made up of circles.
This method processes an image so that it is made up of circles
of a supplied radius, on top of a given background colour.
The color of the circles correspond to the pixel that would have
been at its centre.
Arguments:
painting -- the painting.Painting that the effect should be applied to
"""
distance_between_centres = self.diameter + self.gap
# Half of distance so that circles fully visible on top and left edges
first_centre = distance_between_centres / 2
canvas = painting.copy()
canvas.clear_image(self.background)
for x in range(first_centre, painting.width, distance_between_centres):
for y in range(first_centre, painting.height,
distance_between_centres):
centre = point.Point(x, y)
centre_color = painting.get_pixel_color(centre)
circle = shape.Circle(centre, self.radius, centre_color)
circle.draw(canvas)
painting.img = canvas
def do_effect(self, painting):
"""Process an image so that its pixels are shuffled.
This method processes an image so that the pixels of the
image are shuffled with nearby pixels.
Arguments:
painting -- the painting.Painting that the effect should be applied to
"""
original_painting = painting.copy()
for x in range(0, painting.width, self.shuffle_step):
for y in range(0, painting.height, self.shuffle_step):
current_coordinate = point.Point(x, y)
squaresize = self.__get_random_squaresize()
pixel_square = original_painting.get_square(
current_coordinate, squaresize, squaresize)
shuffled_pixel_square = pixel_square
random.shuffle(shuffled_pixel_square)
for pixel in pixel_square:
new_pixel_color = original_painting.get_pixel_color(pixel)
pixel_to_be_replaced = shuffled_pixel_square.pop()
painting.set_pixel_color(pixel_to_be_replaced,
new_pixel_color)
def do_effect(self, painting):
"""Process an image so that its pixels are shuffled.
This method processes an image so that the pixels of the
image are shuffled with nearby pixels.
Arguments:
painting -- the painting.Painting that the effect should be applied to
"""
original_painting = painting.copy()
for x in range(0, painting.width, self.shuffle_step):
for y in range(0, painting.height, self.shuffle_step):
current_coordinate = point.Point(x, y)
squaresize = self.__get_random_squaresize()
pixel_square = original_painting.get_square(current_coordinate,
squaresize, squaresize)
shuffled_pixel_square = pixel_square
random.shuffle(shuffled_pixel_square)
for pixel in pixel_square:
new_pixel_color = original_painting.get_pixel_color(pixel)
pixel_to_be_replaced = shuffled_pixel_square.pop()
painting.set_pixel_color(pixel_to_be_replaced, new_pixel_color)
