999 lines
30 KiB
Python
999 lines
30 KiB
Python
import io
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import itertools
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import random
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import sys
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from copy import deepcopy
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from enum import Enum
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from functools import lru_cache, partial
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from math import sqrt
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from typing import Tuple, Iterable, List
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import blend_modes
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import numpy as np
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import pytest
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from PIL import Image, ImageDraw, ImageEnhance
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from PIL.Image import Transpose
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from loguru import logger
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from matplotlib import pyplot as plt
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from matplotlib.colors import ListedColormap
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from cv_analysis.utils.conversion import normalize_image_format_to_array, normalize_image_format_to_pil
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from cv_analysis.utils.image_operations import blur, sharpen, overlay, superimpose, compute_pasting_coordinates
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from cv_analysis.utils.merging import merge_related_rectangles
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from cv_analysis.utils.postprocessing import remove_overlapping, remove_included
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from cv_analysis.utils.spacial import area
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from synthesis.partitioner.two_column import TwoColumnPagePartitioner
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from synthesis.random import rnd
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from synthesis.segment.content_rectangle import ContentRectangle
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from synthesis.segment.random_content_rectangle import RandomContentRectangle
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from synthesis.segment.text_block.text_block import TextBlock
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from synthesis.segment.text_block_generator.caption import CaptionGenerator
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from synthesis.text.font import pick_random_font_available_on_system
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from synthesis.text.text import generate_random_words, generate_random_number
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logger.remove()
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logger.add(sys.stderr, level="INFO")
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from funcy import (
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juxt,
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compose,
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identity,
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lmap,
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lsplit,
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lfilter,
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repeatedly,
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mapcat,
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chunks,
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)
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from cv_analysis.locations import TEST_PAGE_TEXTURES_DIR
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from cv_analysis.utils.display import show_image
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from cv_analysis.utils.rectangle import Rectangle
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@pytest.fixture(
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params=[
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# "rough_grain",
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# "plain",
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# "digital",
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"crumpled",
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]
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)
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def base_texture(request, size):
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texture = Image.open(TEST_PAGE_TEXTURES_DIR / (request.param + ".jpg"))
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texture = texture.resize(size)
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# texture.putalpha(255) # ISSUE 1!!!
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return texture
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@pytest.fixture(
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params=[
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"portrait",
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# "landscape",
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]
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)
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def orientation(request):
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return request.param
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@pytest.fixture(
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params=[
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# 30,
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100,
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]
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)
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def dpi(request):
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return request.param
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@pytest.fixture(
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params=[
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# "brown",
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# "sepia",
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# "gray",
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"white",
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# "light_red",
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# "light_blue",
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]
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)
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def color_name(request):
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return request.param
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@pytest.fixture(
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params=[
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# "smooth",
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# "coarse",
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"neutral",
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]
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)
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def texture_name(request):
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return request.param
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@pytest.fixture(
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params=[
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# 30,
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70,
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# 150,
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]
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)
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def color_intensity(request):
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return request.param
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def random_flip(image):
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if rnd.choice([True, False]):
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image = image.transpose(Transpose.FLIP_LEFT_RIGHT)
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if rnd.choice([True, False]):
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image = image.transpose(Transpose.FLIP_TOP_BOTTOM)
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return image
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@pytest.fixture
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def color(color_name):
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return {
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"brown": "#7d6c5b",
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"sepia": "#b8af88",
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"gray": "#9c9c9c",
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"white": "#ffffff",
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"light_red": "#d68c8b",
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"light_blue": "#8bd6d6",
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}[color_name]
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@pytest.fixture
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def texture_fn(texture_name, size):
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if texture_name == "smooth":
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fn = blur
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elif texture_name == "coarse":
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fn = compose(overlay, juxt(blur, sharpen))
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else:
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fn = identity
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return normalize_image_function(fn)
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def normalize_image_function(func):
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def inner(image):
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image = normalize_image_format_to_array(image)
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image = func(image)
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image = normalize_image_format_to_pil(image)
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return image
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return inner
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@pytest.fixture
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def texture(tinted_blank_page, base_texture):
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texture = superimpose(base_texture, tinted_blank_page)
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return texture
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@pytest.fixture
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def tinted_blank_page(size, color, color_intensity):
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tinted_page = Image.new("RGBA", size, color)
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tinted_page.putalpha(color_intensity)
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return tinted_page
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@pytest.fixture
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def blank_page(size, color, color_intensity):
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page = Image.new("RGBA", size, color=(255, 255, 255, 0))
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return page
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@pytest.fixture
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def size(dpi, orientation):
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if orientation == "portrait":
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size = (8.5 * dpi, 11 * dpi)
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elif orientation == "landscape":
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size = (11 * dpi, 8.5 * dpi)
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else:
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raise ValueError(f"Unknown orientation: {orientation}")
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size = tuple(map(int, size))
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return size
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class ContentGenerator:
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def __init__(self):
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self.constrain_layouts = True
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def __call__(self, boxes: List[Rectangle]) -> Image:
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rnd.shuffle(boxes)
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figure_boxes, text_boxes = lsplit(is_square_like, boxes)
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if self.constrain_layouts:
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figure_boxes = merge_related_rectangles(figure_boxes)
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figure_boxes = lfilter(is_square_like, figure_boxes)
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text_boxes = merge_related_rectangles(text_boxes)
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boxes = list(
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itertools.chain(
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map(generate_random_text_block, every_nth(2, text_boxes)),
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*zipmap(generate_recursive_random_table_with_caption, every_nth(2, text_boxes[1:])),
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*zipmap(generate_recursive_random_table_with_caption, every_nth(2, figure_boxes)),
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*zipmap(generate_random_plot_with_caption, every_nth(2, figure_boxes[1:])),
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)
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)
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if self.constrain_layouts:
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boxes = remove_included(boxes)
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boxes = remove_overlapping(boxes)
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return boxes
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def zipmap(fn, boxes, n=2):
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rets = lmap(list, zip(*map(fn, boxes)))
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yield from repeatedly(lambda: [], n) if len(rets) < n else rets
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def is_square_like(box: Rectangle):
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return box.width / box.height > 0.5 and box.height / box.width > 0.5
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def is_wide(box: Rectangle):
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return box.width / box.height > 1.5
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def is_tall(box: Rectangle):
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return box.height / box.width > 1.5
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def every_nth(n, iterable):
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return itertools.islice(iterable, 0, None, n)
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def generate_random_plot_with_caption(rectangle: Rectangle):
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plot_box, caption_box = split_into_figure_and_caption(rectangle)
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plot_box = generate_random_plot(plot_box)
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caption_box = generate_random_image_caption(caption_box)
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return plot_box, caption_box
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# TODO: deduplicate with generate_random_table_with_caption
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def generate_recursive_random_table_with_caption(rectangle: Rectangle):
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table_box, caption_box = split_into_figure_and_caption(rectangle)
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table_box = generate_recursive_random_table(table_box, double_rule=probably())
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caption_box = generate_random_table_caption(caption_box)
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return table_box, caption_box
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def split_into_figure_and_caption(rectangle: Rectangle):
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gap_percentage = rnd.uniform(0, 0.03)
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split_point = rnd.uniform(0.5, 0.9)
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figure_box = Rectangle(
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rectangle.x1, rectangle.y1, rectangle.x2, rectangle.y1 + rectangle.height * (split_point - gap_percentage / 2)
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)
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caption_box = Rectangle(
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rectangle.x1, rectangle.y1 + rectangle.height * (split_point + gap_percentage / 2), rectangle.x2, rectangle.y2
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)
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return figure_box, caption_box
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def generate_random_plot(rectangle: Rectangle) -> ContentRectangle:
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block = RandomPlot(*rectangle.coords)
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block.content = rectangle.content if isinstance(rectangle, ContentRectangle) else None # TODO: Refactor
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block.generate_random_plot(rectangle)
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return block
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def generate_recursive_random_table(rectangle: Rectangle, **kwargs) -> ContentRectangle:
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block = RecursiveRandomTable(*rectangle.coords, **kwargs)
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if isinstance(rectangle, RecursiveRandomTable):
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block.content = rectangle.content if rectangle.content else None # TODO: Refactor
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block.generate_random_table()
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return block
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class Size(Enum):
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SMALL = 120
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MEDIUM = 180
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LARGE = 300
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def get_size_class(rectangle: Rectangle):
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size = get_size(rectangle)
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if size < Size.SMALL.value:
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return Size.SMALL
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elif size < Size.LARGE.value:
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return Size.MEDIUM
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else:
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return Size.LARGE
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def get_size(rectangle: Rectangle):
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size = sqrt(area(rectangle))
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return size
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def get_random_color_complementing_color_map(colormap):
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def color_complement(r, g, b):
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"""Reference: https://stackoverflow.com/a/40234924"""
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def hilo(a, b, c):
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if c < b:
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b, c = c, b
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if b < a:
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a, b = b, a
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if c < b:
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b, c = c, b
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return a + c
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k = hilo(r, g, b)
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return tuple(k - u for u in (r, g, b))
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color = colormap(0.2)[:3]
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color = [int(255 * v) for v in color]
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color = color_complement(*color)
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return color
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@lru_cache(maxsize=None)
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def get_random_background_color():
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return tuple([*get_random_color_complementing_color_map(pick_colormap()), rnd.randint(100, 210)])
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class RecursiveRandomTable(RandomContentRectangle):
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def __init__(self, x1, y1, x2, y2, border_width=1, layout: str = None, double_rule=False):
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"""A table with a random number of rows and columns, and random content in each cell.
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Args:
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x1: x-coordinate of the top-left corner
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y1: y-coordinate of the top-left corner
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x2: x-coordinate of the bottom-right corner
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y2: y-coordinate of the bottom-right corner
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border_width: width of the table border
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layout: layout of the table, either "horizontal", "vertical", "closed", or "open"
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double_rule: whether to use double rules as the top and bottom rules
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"""
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assert layout in [None, "horizontal", "vertical", "closed", "open"]
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super().__init__(x1, y1, x2, y2)
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self.double_rule = double_rule
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self.double_rule_width = (3 * border_width) if self.double_rule else 0
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self.n_columns = rnd.randint(1, max(self.width // 100, 1))
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self.n_rows = rnd.randint(1, max((self.height - 2 * self.double_rule_width) // rnd.randint(17, 100), 1))
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self.cell_size = (self.width / self.n_columns, (self.height - 2 * self.double_rule_width) / self.n_rows)
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self.content = Image.new("RGBA", (self.width, self.height), (255, 255, 255, 0))
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self.background_color = get_random_background_color()
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logger.info(f"Background color: {self.background_color}")
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self.layout = layout or self.pick_random_layout()
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logger.debug(f"Layout: {self.layout}")
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def pick_random_layout(self):
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if self.n_columns == 1 and self.n_rows == 1:
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layout = "closed"
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elif self.n_columns == 1:
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layout = rnd.choice(["vertical", "closed"])
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elif self.n_rows == 1:
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layout = rnd.choice(["horizontal", "closed"])
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else:
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layout = rnd.choice(["closed", "horizontal", "vertical", "open"])
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return layout
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def generate_random_table(self):
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cells = self.generate_table()
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cells = list(self.fill_cells_with_content(cells))
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# FIXME: There is a bug here: Table rule is not drawn correctly, actually we want to do cells = ...
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list(self.draw_cell_borders(cells))
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self.content = paste_contents(self.content, cells)
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assert self.content.mode == "RGBA"
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def fill_cells_with_content(self, cells):
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yield from map(self.build_cell, cells)
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def build_cell(self, cell):
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if self.__is_a_small_cell(cell):
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cell = self.build_small_cell(cell)
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elif self.__is_a_medium_sized_cell(cell):
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cell = self.build_medium_sized_cell(cell)
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elif self.__is_a_large_cell(cell):
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cell = self.build_large_cell(cell)
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else:
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raise ValueError(f"Invalid cell size: {get_size(cell)}")
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assert cell.content.mode == "RGBA"
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return cell
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def __is_a_small_cell(self, cell):
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return get_size(cell) <= Size.SMALL.value
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def __is_a_medium_sized_cell(self, cell):
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return get_size(cell) <= Size.MEDIUM.value
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def __is_a_large_cell(self, cell):
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return get_size(cell) > Size.MEDIUM.value
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def build_small_cell(self, cell):
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content = (possibly() and generate_random_words(1, 3)) or (
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generate_random_number()
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+ ((possibly() and " " + rnd.choice(["$", "£", "%", "EUR", "USD", "CAD", "ADA"])) or "")
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)
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return generate_text_block(cell, content)
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def build_medium_sized_cell(self, cell):
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choice = rnd.choice(["plot", "recurse"])
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if choice == "plot":
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return generate_random_plot(cell)
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elif choice == "recurse":
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return generate_recursive_random_table(
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cell,
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border_width=1,
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layout=random.choice(["open", "horizontal", "vertical"]),
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double_rule=False,
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)
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else:
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return generate_text_block(cell, f"{choice} {get_size(cell):.0f} {get_size_class(cell).name}")
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def build_large_cell(self, cell):
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choice = rnd.choice(["plot", "recurse"])
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logger.debug(f"Generating {choice} {get_size(cell):.0f} {get_size_class(cell).name}")
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if choice == "plot" and is_square_like(cell):
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return generate_random_plot(cell)
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else:
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logger.debug(f"recurse {get_size(cell):.0f} {get_size_class(cell).name}")
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return generate_recursive_random_table(
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cell,
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border_width=1,
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layout=random.choice(["open", "horizontal", "vertical"]),
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double_rule=False,
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)
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def draw_cell_borders(self, cells: List[ContentRectangle]):
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def draw_edges_based_on_position(cell: Cell, col_idx, row_index):
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# Draw the borders of the cell based on its position in the table
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if col_idx < self.n_columns - 1:
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cell.draw_right_border()
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if row_index < self.n_rows - 1:
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cell.draw_bottom_border()
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columns = chunks(self.n_rows, cells)
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for col_idx, column in enumerate(columns):
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for row_index, cell in enumerate(column):
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# TODO: Refactor
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c = Cell(*cell.coords, self.background_color)
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c.content = cell.content
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draw_edges_based_on_position(c, col_idx, row_index)
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yield cell
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if self.layout == "closed":
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# TODO: Refactor
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c = Cell(*self.coords, self.background_color)
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c.content = self.content
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c.draw()
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yield self
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# TODO: Refactor
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if self.double_rule:
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c1 = Cell(*self.coords)
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c1.draw_top_border(width=1)
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c1.draw_bottom_border(width=1)
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x1, y1, x2, y2 = self.coords
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c2 = Cell(x1, y1 + self.double_rule_width, x2, y2 - self.double_rule_width)
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c2.draw_top_border(width=1)
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c2.draw_bottom_border(width=1)
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c = superimpose(c1.content, c2.content)
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self.content = superimpose(c, self.content)
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yield self
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def generate_table(self) -> Iterable[ContentRectangle]:
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yield from mapcat(self.generate_column, range(self.n_columns))
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def generate_column(self, column_index) -> Iterable[ContentRectangle]:
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logger.trace(f"Generating column {column_index}.")
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generate_cell_for_row_index = partial(self.generate_cell, column_index)
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yield from map(generate_cell_for_row_index, range(self.n_rows))
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def generate_cell(self, column_index, row_index) -> ContentRectangle:
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w, h = self.cell_size
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x1, y1 = (column_index * w), (row_index * h) + self.double_rule_width
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x2, y2 = x1 + w, y1 + h
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logger.trace(f"Generating cell ({row_index}, {column_index}) at ({x1}, {y1}, {x2}, {y2}).")
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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 dump_plt_to_image(rectangle):
|
|
buf = io.BytesIO()
|
|
plt.savefig(buf, format="png", transparent=True)
|
|
buf.seek(0)
|
|
image = Image.open(buf)
|
|
image = image.resize((rectangle.width, rectangle.height))
|
|
buf.close()
|
|
plt.close()
|
|
return image
|
|
|
|
|
|
@lru_cache(maxsize=None)
|
|
def pick_colormap() -> ListedColormap:
|
|
cmap_name = rnd.choice(
|
|
[
|
|
"viridis",
|
|
"plasma",
|
|
"inferno",
|
|
"magma",
|
|
"cividis",
|
|
],
|
|
)
|
|
cmap = plt.get_cmap(cmap_name)
|
|
return cmap
|
|
|
|
|
|
class RandomPlot(RandomContentRectangle):
|
|
def __init__(self, x1, y1, x2, y2, seed=None):
|
|
super().__init__(x1, y1, x2, y2, seed=seed)
|
|
|
|
self.cmap = pick_colormap()
|
|
|
|
def __call__(self, *args, **kwargs):
|
|
pass
|
|
|
|
def generate_random_plot(self, rectangle: Rectangle):
|
|
|
|
if is_square_like(rectangle):
|
|
plt_fn = rnd.choice(
|
|
[
|
|
self.generate_random_line_plot,
|
|
self.generate_random_bar_plot,
|
|
self.generate_random_scatter_plot,
|
|
self.generate_random_histogram,
|
|
self.generate_random_pie_chart,
|
|
]
|
|
)
|
|
elif is_wide(rectangle):
|
|
plt_fn = rnd.choice(
|
|
[
|
|
self.generate_random_line_plot,
|
|
self.generate_random_histogram,
|
|
self.generate_random_bar_plot,
|
|
]
|
|
)
|
|
elif is_tall(rectangle):
|
|
plt_fn = rnd.choice(
|
|
[
|
|
self.generate_random_bar_plot,
|
|
self.generate_random_histogram,
|
|
]
|
|
)
|
|
else:
|
|
plt_fn = self.generate_random_scatter_plot
|
|
|
|
plt_fn(rectangle)
|
|
|
|
def generate_random_bar_plot(self, rectangle: Rectangle):
|
|
x = sorted(np.random.randint(low=1, high=11, size=5))
|
|
y = np.random.randint(low=1, high=11, size=5)
|
|
bar_fn = partial(
|
|
plt.bar,
|
|
log=random.choice([True, False]),
|
|
)
|
|
self.__generate_random_plot(bar_fn, rectangle, x, y)
|
|
|
|
def generate_random_line_plot(self, rectangle: Rectangle):
|
|
f = rnd.choice([np.sin, np.cos, np.tan, np.exp, np.log, np.sqrt, np.square])
|
|
|
|
x = np.linspace(0, 10, 100)
|
|
y = f(x)
|
|
|
|
plot_fn = partial(
|
|
plt.plot,
|
|
)
|
|
|
|
self.__generate_random_plot(plot_fn, rectangle, x, y)
|
|
|
|
def generate_random_scatter_plot(self, rectangle: Rectangle):
|
|
n = rnd.randint(10, 40)
|
|
x = np.random.normal(size=n)
|
|
y = np.random.normal(size=n)
|
|
scatter_fn = partial(
|
|
plt.scatter,
|
|
cmap=self.cmap,
|
|
marker=rnd.choice(["o", "*", "+", "x"]),
|
|
)
|
|
|
|
self.__generate_random_plot(scatter_fn, rectangle, x, y)
|
|
|
|
def generate_random_histogram(self, rectangle: Rectangle):
|
|
x = np.random.normal(size=100)
|
|
hist_fn = partial(
|
|
plt.hist,
|
|
orientation=random.choice(["horizontal", "vertical"]),
|
|
histtype=random.choice(["bar", "barstacked", "step", "stepfilled"]),
|
|
log=random.choice([True, False]),
|
|
stacked=random.choice([True, False]),
|
|
density=random.choice([True, False]),
|
|
cumulative=random.choice([True, False]),
|
|
)
|
|
self.__generate_random_plot(hist_fn, rectangle, x, random.randint(5, 20))
|
|
|
|
def generate_random_pie_chart(self, rectangle: Rectangle):
|
|
|
|
n = random.randint(3, 7)
|
|
x = np.random.uniform(size=n)
|
|
pie_fn = partial(
|
|
plt.pie,
|
|
shadow=True,
|
|
startangle=90,
|
|
pctdistance=0.85,
|
|
labeldistance=1.1,
|
|
colors=self.cmap(np.linspace(0, 1, 10)),
|
|
)
|
|
self.__generate_random_plot(
|
|
pie_fn,
|
|
rectangle,
|
|
x,
|
|
np.random.uniform(0, 0.1, size=n),
|
|
plot_kwargs=self.generate_plot_kwargs(keywords=["a"]),
|
|
)
|
|
|
|
def generate_plot_kwargs(self, keywords=None):
|
|
|
|
kwargs = {
|
|
"color": rnd.choice(self.cmap.colors),
|
|
"linestyle": rnd.choice(["-", "--", "-.", ":"]),
|
|
"linewidth": rnd.uniform(1, 4),
|
|
}
|
|
|
|
return kwargs if not keywords else {k: v for k, v in kwargs.items() if k in keywords}
|
|
|
|
def __generate_random_plot(self, plot_fn, rectangle: Rectangle, x, y, plot_kwargs=None):
|
|
|
|
plot_kwargs = self.generate_plot_kwargs() if plot_kwargs is None else plot_kwargs
|
|
|
|
fig, ax = plt.subplots()
|
|
fig.set_size_inches(rectangle.width / 100, rectangle.height / 100)
|
|
fig.tight_layout(pad=0)
|
|
|
|
plot_fn(x, y, **plot_kwargs)
|
|
ax.set_facecolor("none")
|
|
|
|
probably() and ax.set_title(generate_random_words(1, 3))
|
|
|
|
# disable axes at random
|
|
maybe() and ax.set_xticks([])
|
|
maybe() and ax.set_yticks([])
|
|
maybe() and ax.set_xticklabels([])
|
|
maybe() and ax.set_yticklabels([])
|
|
maybe() and ax.set_xlabel("")
|
|
maybe() and ax.set_ylabel("")
|
|
maybe() and ax.set_title("")
|
|
maybe() and ax.set_frame_on(False)
|
|
|
|
# remove spines at random
|
|
maybe() and (ax.spines["top"].set_visible(False) or ax.spines["right"].set_visible(False))
|
|
|
|
image = dump_plt_to_image(rectangle)
|
|
assert image.mode == "RGBA"
|
|
|
|
self.content = image if not self.content else superimpose(self.content, image)
|
|
|
|
|
|
def maybe():
|
|
return rnd.random() > 0.9
|
|
|
|
|
|
def possibly():
|
|
return rnd.random() > 0.5
|
|
|
|
|
|
def probably():
|
|
return rnd.random() > 0.4
|
|
|
|
|
|
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
|
|
|
|
|
|
class RandomPageNumber(TextBlock):
|
|
def __init__(self, x1, y1, x2, y2):
|
|
super().__init__(x1, y1, x2, y2)
|
|
self.page_number = random.randint(1, 1000)
|
|
self.margin_distance_percentage = 0.05
|
|
self.margin_distance_x = int(self.width * self.margin_distance_percentage)
|
|
self.margin_distance_y = int(self.height * self.margin_distance_percentage)
|
|
|
|
self.location_coordinates = self.location_to_coordinates(self.pick_location())
|
|
|
|
|
|
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")
|