89 lines
2.6 KiB
Python
89 lines
2.6 KiB
Python
import textwrap
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import cv2
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import numpy as np
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import pytest
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from lorem_text import lorem
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from cv_analysis.figure_detection.figure_detection import detect_figures
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@pytest.fixture
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def page_with_images(random_image, background):
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page_image = paste_image(background, random_image, (200, 200))
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return np.array(page_image)
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@pytest.fixture
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def page_with_text(background, font_scale, font_style, text_types):
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cursor = (50, 50)
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image = background
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body_height = image.shape[0] // 3
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if "header" in text_types:
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image = paste_text(image, cursor, font_scale, font_style, y_stop=70)
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if "body" in text_types:
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cursor = (image.shape[1] // 2, 70)
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image = paste_text(image, cursor, font_scale, font_style, y_stop=body_height)
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cursor = (50, body_height + 70)
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image = paste_text(image, cursor, font_scale, font_style, y_stop=body_height * 2)
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if "caption" in text_types:
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cursor = (image.shape[1] // 2, image.shape[0] - 100)
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image = paste_text(image, cursor, font_scale, font_style, y_stop=body_height * 3)
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return image
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@pytest.fixture
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def page_with_images_and_text(page_with_images, page_with_text):
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return np.fmin(page_with_text, page_with_images)
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@pytest.fixture
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def background(background_color):
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return np.ones((3508, 2480, 3), dtype="uint8") * background_color
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@pytest.fixture
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def random_image(image_size):
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return np.random.rand(*image_size, 3) * 255
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@pytest.fixture
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def figure_detection_pipeline():
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return detect_figures
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def paste_text(image: np.ndarray, cursor, font_scale, font_style, y_stop):
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def paste_text_at_cursor(x_start, y_start, y_stop):
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# TODO: adjust incorrect right margin
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text = lorem.paragraphs(1) * 200
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(dx, dy), base = cv2.getTextSize(text, fontFace=font_style, fontScale=font_scale, thickness=1)
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dy += base
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# char_width = dx // len(text)
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text = textwrap.fill(text=text, width=(dx // page_width))
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for i, line in enumerate(text.split("\n")):
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y = y_start + i * dy
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if y > y_stop:
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break
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cv2.putText(
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image,
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line,
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org=(x_start, y),
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fontFace=font_style,
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fontScale=font_scale,
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color=(0, 0, 0),
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thickness=1,
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lineType=cv2.LINE_AA,
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)
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x_start, y_start = cursor
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page_width = image.shape[1]
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paste_text_at_cursor(x_start, y_start, y_stop)
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return image
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def paste_image(page_image, image, coords):
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h, w = image.shape[:2]
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x, y = coords
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page_image[x : x + h, y : y + w] = image
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return page_image
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