788 lines
24 KiB
Python
788 lines
24 KiB
Python
import itertools
|
|
import random
|
|
import sys
|
|
from copy import deepcopy
|
|
from enum import Enum
|
|
from functools import lru_cache, partial
|
|
from math import sqrt
|
|
from typing import Tuple, Iterable, List
|
|
|
|
import blend_modes
|
|
import numpy as np
|
|
import pytest
|
|
from PIL import Image, ImageDraw, ImageEnhance
|
|
from PIL.Image import Transpose
|
|
from loguru import logger
|
|
|
|
from cv_analysis.utils.conversion import normalize_image_format_to_array, normalize_image_format_to_pil
|
|
from cv_analysis.utils.image_operations import blur, sharpen, overlay, superimpose, compute_pasting_coordinates
|
|
from cv_analysis.utils.merging import merge_related_rectangles
|
|
from cv_analysis.utils.postprocessing import remove_overlapping, remove_included
|
|
from cv_analysis.utils.spacial import area
|
|
from synthesis.partitioner.two_column import TwoColumnPagePartitioner
|
|
from synthesis.random import rnd, possibly, probably
|
|
from synthesis.segment.content_rectangle import ContentRectangle
|
|
from synthesis.segment.plot import pick_colormap, RandomPlot
|
|
from cv_analysis.utils.geometric import is_square_like
|
|
from synthesis.segment.random_content_rectangle import RandomContentRectangle
|
|
from synthesis.segment.text_block import TextBlock
|
|
from synthesis.text.text_block_generator.caption import CaptionGenerator
|
|
from synthesis.text.font import pick_random_font_available_on_system
|
|
from synthesis.text.text import generate_random_words, generate_random_number
|
|
|
|
logger.remove()
|
|
logger.add(sys.stderr, level="INFO")
|
|
|
|
|
|
from funcy import (
|
|
juxt,
|
|
compose,
|
|
identity,
|
|
lmap,
|
|
lsplit,
|
|
lfilter,
|
|
repeatedly,
|
|
mapcat,
|
|
chunks,
|
|
)
|
|
|
|
from cv_analysis.locations import TEST_PAGE_TEXTURES_DIR
|
|
|
|
from cv_analysis.utils.display import show_image
|
|
from cv_analysis.utils.rectangle import Rectangle
|
|
|
|
|
|
@pytest.fixture(
|
|
params=[
|
|
# "rough_grain",
|
|
# "plain",
|
|
# "digital",
|
|
"crumpled",
|
|
]
|
|
)
|
|
def base_texture(request, size):
|
|
texture = Image.open(TEST_PAGE_TEXTURES_DIR / (request.param + ".jpg"))
|
|
texture = texture.resize(size)
|
|
# texture.putalpha(255) # ISSUE 1!!!
|
|
return texture
|
|
|
|
|
|
@pytest.fixture(
|
|
params=[
|
|
"portrait",
|
|
# "landscape",
|
|
]
|
|
)
|
|
def orientation(request):
|
|
return request.param
|
|
|
|
|
|
@pytest.fixture(
|
|
params=[
|
|
# 30,
|
|
100,
|
|
]
|
|
)
|
|
def dpi(request):
|
|
return request.param
|
|
|
|
|
|
@pytest.fixture(
|
|
params=[
|
|
# "brown",
|
|
# "sepia",
|
|
# "gray",
|
|
"white",
|
|
# "light_red",
|
|
# "light_blue",
|
|
]
|
|
)
|
|
def color_name(request):
|
|
return request.param
|
|
|
|
|
|
@pytest.fixture(
|
|
params=[
|
|
# "smooth",
|
|
# "coarse",
|
|
"neutral",
|
|
]
|
|
)
|
|
def texture_name(request):
|
|
return request.param
|
|
|
|
|
|
@pytest.fixture(
|
|
params=[
|
|
# 30,
|
|
70,
|
|
# 150,
|
|
]
|
|
)
|
|
def color_intensity(request):
|
|
return request.param
|
|
|
|
|
|
def random_flip(image):
|
|
if rnd.choice([True, False]):
|
|
image = image.transpose(Transpose.FLIP_LEFT_RIGHT)
|
|
if rnd.choice([True, False]):
|
|
image = image.transpose(Transpose.FLIP_TOP_BOTTOM)
|
|
return image
|
|
|
|
|
|
@pytest.fixture
|
|
def color(color_name):
|
|
return {
|
|
"brown": "#7d6c5b",
|
|
"sepia": "#b8af88",
|
|
"gray": "#9c9c9c",
|
|
"white": "#ffffff",
|
|
"light_red": "#d68c8b",
|
|
"light_blue": "#8bd6d6",
|
|
}[color_name]
|
|
|
|
|
|
@pytest.fixture
|
|
def texture_fn(texture_name, size):
|
|
if texture_name == "smooth":
|
|
fn = blur
|
|
elif texture_name == "coarse":
|
|
fn = compose(overlay, juxt(blur, sharpen))
|
|
else:
|
|
fn = identity
|
|
|
|
return normalize_image_function(fn)
|
|
|
|
|
|
def normalize_image_function(func):
|
|
def inner(image):
|
|
image = normalize_image_format_to_array(image)
|
|
image = func(image)
|
|
image = normalize_image_format_to_pil(image)
|
|
return image
|
|
|
|
return inner
|
|
|
|
|
|
@pytest.fixture
|
|
def texture(tinted_blank_page, base_texture):
|
|
texture = superimpose(base_texture, tinted_blank_page)
|
|
return texture
|
|
|
|
|
|
@pytest.fixture
|
|
def tinted_blank_page(size, color, color_intensity):
|
|
tinted_page = Image.new("RGBA", size, color)
|
|
tinted_page.putalpha(color_intensity)
|
|
return tinted_page
|
|
|
|
|
|
@pytest.fixture
|
|
def blank_page(size, color, color_intensity):
|
|
page = Image.new("RGBA", size, color=(255, 255, 255, 0))
|
|
return page
|
|
|
|
|
|
@pytest.fixture
|
|
def size(dpi, orientation):
|
|
if orientation == "portrait":
|
|
size = (8.5 * dpi, 11 * dpi)
|
|
elif orientation == "landscape":
|
|
size = (11 * dpi, 8.5 * dpi)
|
|
else:
|
|
raise ValueError(f"Unknown orientation: {orientation}")
|
|
size = tuple(map(int, size))
|
|
return size
|
|
|
|
|
|
class ContentGenerator:
|
|
def __init__(self):
|
|
self.constrain_layouts = True
|
|
|
|
def __call__(self, boxes: List[Rectangle]) -> Image:
|
|
rnd.shuffle(boxes)
|
|
|
|
figure_boxes, text_boxes = lsplit(is_square_like, boxes)
|
|
|
|
if self.constrain_layouts:
|
|
figure_boxes = merge_related_rectangles(figure_boxes)
|
|
figure_boxes = lfilter(is_square_like, figure_boxes)
|
|
text_boxes = merge_related_rectangles(text_boxes)
|
|
|
|
boxes = list(
|
|
itertools.chain(
|
|
map(generate_random_text_block, every_nth(2, text_boxes)),
|
|
*zipmap(generate_recursive_random_table_with_caption, every_nth(2, text_boxes[1:])),
|
|
*zipmap(generate_recursive_random_table_with_caption, every_nth(2, figure_boxes)),
|
|
*zipmap(generate_random_plot_with_caption, every_nth(2, figure_boxes[1:])),
|
|
)
|
|
)
|
|
|
|
if self.constrain_layouts:
|
|
boxes = remove_included(boxes)
|
|
boxes = remove_overlapping(boxes)
|
|
|
|
return boxes
|
|
|
|
|
|
def zipmap(fn, boxes, n=2):
|
|
rets = lmap(list, zip(*map(fn, boxes)))
|
|
yield from repeatedly(lambda: [], n) if len(rets) < n else rets
|
|
|
|
|
|
def every_nth(n, iterable):
|
|
return itertools.islice(iterable, 0, None, n)
|
|
|
|
|
|
def generate_random_plot_with_caption(rectangle: Rectangle):
|
|
plot_box, caption_box = split_into_figure_and_caption(rectangle)
|
|
plot_box = generate_random_plot(plot_box)
|
|
caption_box = generate_random_image_caption(caption_box)
|
|
return plot_box, caption_box
|
|
|
|
|
|
# TODO: deduplicate with generate_random_table_with_caption
|
|
def generate_recursive_random_table_with_caption(rectangle: Rectangle):
|
|
table_box, caption_box = split_into_figure_and_caption(rectangle)
|
|
table_box = generate_recursive_random_table(table_box, double_rule=probably())
|
|
caption_box = generate_random_table_caption(caption_box)
|
|
return table_box, caption_box
|
|
|
|
|
|
def split_into_figure_and_caption(rectangle: Rectangle):
|
|
gap_percentage = rnd.uniform(0, 0.03)
|
|
split_point = rnd.uniform(0.5, 0.9)
|
|
figure_box = Rectangle(
|
|
rectangle.x1, rectangle.y1, rectangle.x2, rectangle.y1 + rectangle.height * (split_point - gap_percentage / 2)
|
|
)
|
|
caption_box = Rectangle(
|
|
rectangle.x1, rectangle.y1 + rectangle.height * (split_point + gap_percentage / 2), rectangle.x2, rectangle.y2
|
|
)
|
|
return figure_box, caption_box
|
|
|
|
|
|
def generate_random_plot(rectangle: Rectangle) -> ContentRectangle:
|
|
block = RandomPlot(*rectangle.coords)
|
|
block.content = rectangle.content if isinstance(rectangle, ContentRectangle) else None # TODO: Refactor
|
|
block.generate_random_plot(rectangle)
|
|
return block
|
|
|
|
|
|
def generate_recursive_random_table(rectangle: Rectangle, **kwargs) -> ContentRectangle:
|
|
block = RecursiveRandomTable(*rectangle.coords, **kwargs)
|
|
if isinstance(rectangle, RecursiveRandomTable):
|
|
block.content = rectangle.content if rectangle.content else None # TODO: Refactor
|
|
block.generate_random_table()
|
|
return block
|
|
|
|
|
|
class Size(Enum):
|
|
SMALL = 120
|
|
MEDIUM = 180
|
|
LARGE = 300
|
|
|
|
|
|
def get_size_class(rectangle: Rectangle):
|
|
size = get_size(rectangle)
|
|
if size < Size.SMALL.value:
|
|
return Size.SMALL
|
|
elif size < Size.LARGE.value:
|
|
return Size.MEDIUM
|
|
else:
|
|
return Size.LARGE
|
|
|
|
|
|
def get_size(rectangle: Rectangle):
|
|
size = sqrt(area(rectangle))
|
|
return size
|
|
|
|
|
|
def get_random_color_complementing_color_map(colormap):
|
|
def color_complement(r, g, b):
|
|
"""Reference: https://stackoverflow.com/a/40234924"""
|
|
|
|
def hilo(a, b, c):
|
|
if c < b:
|
|
b, c = c, b
|
|
if b < a:
|
|
a, b = b, a
|
|
if c < b:
|
|
b, c = c, b
|
|
return a + c
|
|
|
|
k = hilo(r, g, b)
|
|
return tuple(k - u for u in (r, g, b))
|
|
|
|
color = colormap(0.2)[:3]
|
|
color = [int(255 * v) for v in color]
|
|
color = color_complement(*color)
|
|
return color
|
|
|
|
|
|
@lru_cache(maxsize=None)
|
|
def get_random_background_color():
|
|
return tuple([*get_random_color_complementing_color_map(pick_colormap()), rnd.randint(100, 210)])
|
|
|
|
|
|
class RecursiveRandomTable(RandomContentRectangle):
|
|
def __init__(self, x1, y1, x2, y2, border_width=1, layout: str = None, double_rule=False):
|
|
"""A table with a random number of rows and columns, and random content in each cell.
|
|
|
|
Args:
|
|
x1: x-coordinate of the top-left corner
|
|
y1: y-coordinate of the top-left corner
|
|
x2: x-coordinate of the bottom-right corner
|
|
y2: y-coordinate of the bottom-right corner
|
|
border_width: width of the table border
|
|
layout: layout of the table, either "horizontal", "vertical", "closed", or "open"
|
|
double_rule: whether to use double rules as the top and bottom rules
|
|
"""
|
|
|
|
assert layout in [None, "horizontal", "vertical", "closed", "open"]
|
|
|
|
super().__init__(x1, y1, x2, y2)
|
|
|
|
self.double_rule = double_rule
|
|
self.double_rule_width = (3 * border_width) if self.double_rule else 0
|
|
|
|
self.n_columns = rnd.randint(1, max(self.width // 100, 1))
|
|
self.n_rows = rnd.randint(1, max((self.height - 2 * self.double_rule_width) // rnd.randint(17, 100), 1))
|
|
self.cell_size = (self.width / self.n_columns, (self.height - 2 * self.double_rule_width) / self.n_rows)
|
|
|
|
self.content = Image.new("RGBA", (self.width, self.height), (255, 255, 255, 0))
|
|
|
|
self.background_color = get_random_background_color()
|
|
|
|
logger.info(f"Background color: {self.background_color}")
|
|
|
|
self.layout = layout or self.pick_random_layout()
|
|
logger.debug(f"Layout: {self.layout}")
|
|
|
|
def pick_random_layout(self):
|
|
|
|
if self.n_columns == 1 and self.n_rows == 1:
|
|
layout = "closed"
|
|
elif self.n_columns == 1:
|
|
layout = rnd.choice(["vertical", "closed"])
|
|
elif self.n_rows == 1:
|
|
layout = rnd.choice(["horizontal", "closed"])
|
|
else:
|
|
layout = rnd.choice(["closed", "horizontal", "vertical", "open"])
|
|
|
|
return layout
|
|
|
|
def generate_random_table(self):
|
|
cells = self.generate_table()
|
|
cells = list(self.fill_cells_with_content(cells))
|
|
# FIXME: There is a bug here: Table rule is not drawn correctly, actually we want to do cells = ...
|
|
list(self.draw_cell_borders(cells))
|
|
|
|
self.content = paste_contents(self.content, cells)
|
|
assert self.content.mode == "RGBA"
|
|
|
|
def fill_cells_with_content(self, cells):
|
|
yield from map(self.build_cell, cells)
|
|
|
|
def build_cell(self, cell):
|
|
|
|
if self.__is_a_small_cell(cell):
|
|
cell = self.build_small_cell(cell)
|
|
|
|
elif self.__is_a_medium_sized_cell(cell):
|
|
cell = self.build_medium_sized_cell(cell)
|
|
|
|
elif self.__is_a_large_cell(cell):
|
|
cell = self.build_large_cell(cell)
|
|
|
|
else:
|
|
raise ValueError(f"Invalid cell size: {get_size(cell)}")
|
|
|
|
assert cell.content.mode == "RGBA"
|
|
|
|
return cell
|
|
|
|
def __is_a_small_cell(self, cell):
|
|
return get_size(cell) <= Size.SMALL.value
|
|
|
|
def __is_a_medium_sized_cell(self, cell):
|
|
return get_size(cell) <= Size.MEDIUM.value
|
|
|
|
def __is_a_large_cell(self, cell):
|
|
return get_size(cell) > Size.MEDIUM.value
|
|
|
|
def build_small_cell(self, cell):
|
|
|
|
content = (possibly() and generate_random_words(1, 3)) or (
|
|
generate_random_number()
|
|
+ ((possibly() and " " + rnd.choice(["$", "£", "%", "EUR", "USD", "CAD", "ADA"])) or "")
|
|
)
|
|
|
|
return generate_text_block(cell, content)
|
|
|
|
def build_medium_sized_cell(self, cell):
|
|
|
|
choice = rnd.choice(["plot", "recurse"])
|
|
|
|
if choice == "plot":
|
|
return generate_random_plot(cell)
|
|
|
|
elif choice == "recurse":
|
|
return generate_recursive_random_table(
|
|
cell,
|
|
border_width=1,
|
|
layout=random.choice(["open", "horizontal", "vertical"]),
|
|
double_rule=False,
|
|
)
|
|
|
|
else:
|
|
return generate_text_block(cell, f"{choice} {get_size(cell):.0f} {get_size_class(cell).name}")
|
|
|
|
def build_large_cell(self, cell):
|
|
choice = rnd.choice(["plot", "recurse"])
|
|
|
|
logger.debug(f"Generating {choice} {get_size(cell):.0f} {get_size_class(cell).name}")
|
|
|
|
if choice == "plot" and is_square_like(cell):
|
|
return generate_random_plot(cell)
|
|
|
|
else:
|
|
logger.debug(f"recurse {get_size(cell):.0f} {get_size_class(cell).name}")
|
|
return generate_recursive_random_table(
|
|
cell,
|
|
border_width=1,
|
|
layout=random.choice(["open", "horizontal", "vertical"]),
|
|
double_rule=False,
|
|
)
|
|
|
|
def draw_cell_borders(self, cells: List[ContentRectangle]):
|
|
def draw_edges_based_on_position(cell: Cell, col_idx, row_index):
|
|
# Draw the borders of the cell based on its position in the table
|
|
if col_idx < self.n_columns - 1:
|
|
cell.draw_right_border()
|
|
|
|
if row_index < self.n_rows - 1:
|
|
cell.draw_bottom_border()
|
|
|
|
columns = chunks(self.n_rows, cells)
|
|
for col_idx, column in enumerate(columns):
|
|
for row_index, cell in enumerate(column):
|
|
# TODO: Refactor
|
|
c = Cell(*cell.coords, self.background_color)
|
|
c.content = cell.content
|
|
draw_edges_based_on_position(c, col_idx, row_index)
|
|
yield cell
|
|
|
|
if self.layout == "closed":
|
|
# TODO: Refactor
|
|
c = Cell(*self.coords, self.background_color)
|
|
c.content = self.content
|
|
c.draw()
|
|
yield self
|
|
|
|
# TODO: Refactor
|
|
if self.double_rule:
|
|
c1 = Cell(*self.coords)
|
|
c1.draw_top_border(width=1)
|
|
c1.draw_bottom_border(width=1)
|
|
|
|
x1, y1, x2, y2 = self.coords
|
|
c2 = Cell(x1, y1 + self.double_rule_width, x2, y2 - self.double_rule_width)
|
|
c2.draw_top_border(width=1)
|
|
c2.draw_bottom_border(width=1)
|
|
|
|
c = superimpose(c1.content, c2.content)
|
|
|
|
self.content = superimpose(c, self.content)
|
|
|
|
yield self
|
|
|
|
def generate_table(self) -> Iterable[ContentRectangle]:
|
|
yield from mapcat(self.generate_column, range(self.n_columns))
|
|
|
|
def generate_column(self, column_index) -> Iterable[ContentRectangle]:
|
|
logger.trace(f"Generating column {column_index}.")
|
|
generate_cell_for_row_index = partial(self.generate_cell, column_index)
|
|
yield from map(generate_cell_for_row_index, range(self.n_rows))
|
|
|
|
def generate_cell(self, column_index, row_index) -> ContentRectangle:
|
|
w, h = self.cell_size
|
|
x1, y1 = (column_index * w), (row_index * h) + self.double_rule_width
|
|
x2, y2 = x1 + w, y1 + h
|
|
logger.trace(f"Generating cell ({row_index}, {column_index}) at ({x1}, {y1}, {x2}, {y2}).")
|
|
return Cell(x1, y1, x2, y2, self.background_color)
|
|
|
|
def generate_column_names(self):
|
|
column_names = repeatedly(self.generate_column_name, self.n_columns)
|
|
return column_names
|
|
|
|
def generate_column_name(self):
|
|
column_name = generate_random_words(1, 3)
|
|
return column_name
|
|
|
|
|
|
class Cell(ContentRectangle):
|
|
def __init__(self, x1, y1, x2, y2, color=None):
|
|
super().__init__(x1, y1, x2, y2)
|
|
|
|
self.background_color = color or (255, 255, 255, 0)
|
|
|
|
# to debug use random border color: tuple([random.randint(100, 200) for _ in range(3)] + [255])
|
|
self.cell_border_color = (0, 0, 0, 255)
|
|
|
|
self.border_width = 1
|
|
self.inset = 1
|
|
|
|
self.content = Image.new("RGBA", (self.width, self.height))
|
|
self.fill()
|
|
|
|
def draw_top_border(self, width=None):
|
|
self.draw_line((0, 0, self.width - self.inset, 0), width=width)
|
|
return self
|
|
|
|
def draw_bottom_border(self, width=None):
|
|
self.draw_line((0, self.height - self.inset, self.width - self.inset, self.height - self.inset), width=width)
|
|
return self
|
|
|
|
def draw_left_border(self, width=None):
|
|
self.draw_line((0, 0, 0, self.height), width=width)
|
|
return self
|
|
|
|
def draw_right_border(self, width=None):
|
|
self.draw_line((self.width - self.inset, 0, self.width - self.inset, self.height), width=width)
|
|
return self
|
|
|
|
def draw_line(self, points, width=None):
|
|
width = width or self.border_width
|
|
draw = ImageDraw.Draw(self.content)
|
|
draw.line(points, width=width, fill=self.cell_border_color)
|
|
return self
|
|
|
|
def draw(self, width=None):
|
|
self.draw_top_border(width=width)
|
|
self.draw_bottom_border(width=width)
|
|
self.draw_left_border(width=width)
|
|
self.draw_right_border(width=width)
|
|
return self
|
|
|
|
def draw_top_left_corner(self, width=None):
|
|
self.draw_line((0, 0, 0, 0), width=width)
|
|
self.draw_line((0, 0, 0, 0), width=width)
|
|
return self
|
|
|
|
def draw_top_right_corner(self, width=None):
|
|
self.draw_line((self.width - self.inset, 0, self.width - self.inset, 0), width=width)
|
|
self.draw_line((self.width - self.inset, 0, self.width - self.inset, 0), width=width)
|
|
return self
|
|
|
|
def draw_bottom_left_corner(self, width=None):
|
|
self.draw_line((0, self.height - self.inset, 0, self.height - self.inset), width=width)
|
|
self.draw_line((0, self.height - self.inset, 0, self.height - self.inset), width=width)
|
|
return self
|
|
|
|
def draw_bottom_right_corner(self, width=None):
|
|
self.draw_line(
|
|
(self.width - self.inset, self.height - self.inset, self.width - self.inset, self.height - self.inset),
|
|
width=width,
|
|
)
|
|
self.draw_line(
|
|
(self.width - self.inset, self.height - self.inset, self.width - self.inset, self.height - self.inset),
|
|
width=width,
|
|
)
|
|
return self
|
|
|
|
def fill(self, color=None):
|
|
color = color or self.background_color
|
|
image = Image.new("RGBA", (self.width, self.height), color=color)
|
|
self.content = superimpose(image, self.content)
|
|
return self
|
|
|
|
|
|
def shrink_rectangle(rectangle: Rectangle, factor: float) -> Rectangle:
|
|
x1, y1, x2, y2 = compute_scaled_coordinates(rectangle, (1 - factor))
|
|
|
|
logger.trace(f"Shrinking {rectangle} by {factor} to ({x1}, {y1}, {x2}, {y2}).")
|
|
|
|
assert x1 >= rectangle.x1
|
|
assert y1 >= rectangle.y1
|
|
assert x2 <= rectangle.x2
|
|
assert y2 <= rectangle.y2
|
|
|
|
shrunk_rectangle = Rectangle(x1, y1, x2, y2)
|
|
|
|
if isinstance(rectangle, ContentRectangle): # TODO: Refactor
|
|
shrunk_rectangle = ContentRectangle(*shrunk_rectangle.coords, rectangle.content)
|
|
|
|
return shrunk_rectangle
|
|
|
|
|
|
def compute_scaled_coordinates(rectangle: Rectangle, factor: float) -> Tuple[int, int, int, int]:
|
|
# TODO: Refactor: Using image to compute coordinates is not clean
|
|
image = Image.new("RGBA", (rectangle.width, rectangle.height))
|
|
scaled = image.resize((int(rectangle.width * factor), int(rectangle.height * factor)))
|
|
|
|
x1, y1 = compute_pasting_coordinates(scaled, image)
|
|
x1 = rectangle.x1 + x1
|
|
y1 = rectangle.y1 + y1
|
|
x2, y2 = x1 + scaled.width, y1 + scaled.height
|
|
return x1, y1, x2, y2
|
|
|
|
|
|
def generate_random_text_block(rectangle: Rectangle, n_sentences=3000) -> ContentRectangle:
|
|
block = TextBlock(
|
|
*rectangle.coords,
|
|
font=pick_random_font_available_on_system(
|
|
includes=("serif", "sans-serif"),
|
|
excludes=("bold", "mono", "italic", "oblique", "cursive"),
|
|
),
|
|
font_size=30, # TODO: De-hardcode font size... Seems to have no effect on top of that
|
|
)
|
|
block.content = rectangle.content if isinstance(rectangle, ContentRectangle) else None # TODO: Refactor
|
|
block.generate_random_text(rectangle, n_sentences)
|
|
return block
|
|
|
|
|
|
def generate_random_image_caption(rectangle: Rectangle) -> ContentRectangle:
|
|
return generate_random_caption(rectangle, f"Fig {rnd.randint(1, 20)}")
|
|
|
|
|
|
def generate_random_table_caption(rectangle: Rectangle) -> ContentRectangle:
|
|
return generate_random_caption(rectangle, f"Tabl {rnd.randint(1, 20)}")
|
|
|
|
|
|
def generate_random_caption(rectangle: Rectangle, caption_start, n_sentences=1000) -> ContentRectangle:
|
|
block = TextBlock(
|
|
*rectangle.coords,
|
|
text_generator=CaptionGenerator(caption_start=caption_start),
|
|
font=pick_random_font_available_on_system(
|
|
includes=("italic",),
|
|
excludes=("bold", "mono"),
|
|
),
|
|
font_size=100, # TODO: De-hardcode font size... Seems to have no effect on top of that
|
|
)
|
|
block.content = rectangle.content if isinstance(rectangle, ContentRectangle) else None # TODO: Refactor
|
|
block.generate_random_text(rectangle, n_sentences)
|
|
return block
|
|
|
|
|
|
def generate_text_block(rectangle: Rectangle, text) -> ContentRectangle:
|
|
block = TextBlock(
|
|
*rectangle.coords,
|
|
font=pick_random_font_available_on_system(
|
|
includes=("serif", "sans-serif", "bold"),
|
|
excludes=("mono", "italic", "oblique", "cursive"),
|
|
),
|
|
font_size=30, # TODO: De-hardcode font size... Seems to have no effect on top of that
|
|
)
|
|
block.content = rectangle.content if isinstance(rectangle, ContentRectangle) else None # TODO: Refactor
|
|
block.put_text(text, rectangle)
|
|
return block
|
|
|
|
|
|
def paste_content(page, content_box: ContentRectangle):
|
|
assert content_box.content.mode == "RGBA"
|
|
page.paste(content_box.content, (content_box.x1, content_box.y1), content_box.content)
|
|
return page
|
|
|
|
|
|
def paste_contents(page, contents: Iterable[ContentRectangle]):
|
|
page = deepcopy(page)
|
|
for content in contents:
|
|
paste_content(page, content)
|
|
return page
|
|
|
|
|
|
@pytest.fixture(
|
|
params=[
|
|
TwoColumnPagePartitioner,
|
|
# RandomPagePartitioner
|
|
]
|
|
)
|
|
def page_partitioner(request):
|
|
return request.param()
|
|
|
|
|
|
@pytest.fixture
|
|
def boxes(page_partitioner, blank_page):
|
|
boxes = page_partitioner(blank_page)
|
|
return boxes
|
|
|
|
|
|
@pytest.fixture
|
|
def prepared_texture(texture, texture_fn):
|
|
texture = random_flip(texture)
|
|
texture = texture_fn(texture)
|
|
return texture
|
|
|
|
|
|
@pytest.fixture
|
|
def content_boxes(boxes):
|
|
content_generator = ContentGenerator()
|
|
content_boxes = content_generator(boxes)
|
|
return content_boxes
|
|
|
|
|
|
@pytest.fixture
|
|
def page_with_opaque_content(
|
|
blank_page, tinted_blank_page, prepared_texture, content_boxes
|
|
) -> Tuple[np.ndarray, Iterable[Rectangle]]:
|
|
"""Creates a page with content"""
|
|
page = paste_contents(prepared_texture, content_boxes)
|
|
|
|
return page, content_boxes
|
|
|
|
|
|
@pytest.fixture
|
|
def page_with_translucent_content(
|
|
blank_page, tinted_blank_page, prepared_texture, content_boxes
|
|
) -> Tuple[np.ndarray, List[Rectangle]]:
|
|
"""Creates a page with content"""
|
|
page_content = paste_contents(blank_page, content_boxes)
|
|
page = blend_by_multiply(page_content, prepared_texture)
|
|
|
|
return page, content_boxes
|
|
|
|
|
|
def blend_by_multiply(page_content, texture):
|
|
def to_array(image: Image) -> np.ndarray:
|
|
return np.array(image).astype(np.float32)
|
|
|
|
texture.putalpha(255)
|
|
page_content.putalpha(255)
|
|
factor = 1.2
|
|
enhancer = ImageEnhance.Contrast(texture)
|
|
texture = enhancer.enhance(factor)
|
|
|
|
page = blend_modes.multiply(
|
|
*map(
|
|
to_array,
|
|
(
|
|
page_content,
|
|
texture,
|
|
),
|
|
),
|
|
opacity=1,
|
|
).astype(np.uint8)
|
|
return page
|
|
|
|
|
|
@pytest.fixture
|
|
def page_with_content(
|
|
page_with_translucent_content,
|
|
# page_with_opaque_content,
|
|
) -> np.ndarray:
|
|
|
|
page, boxes = page_with_translucent_content
|
|
# page, boxes = page_with_opaque_content
|
|
|
|
draw_boxes(page, boxes)
|
|
|
|
return page
|
|
|
|
|
|
def draw_boxes(page: Image, boxes: Iterable[Rectangle]):
|
|
from cv_analysis.utils.drawing import draw_rectangles
|
|
|
|
page = draw_rectangles(page, boxes, filled=False, annotate=True)
|
|
show_image(page, backend="pil")
|