59 lines
2.1 KiB
Python
59 lines
2.1 KiB
Python
import textwrap
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from typing import List, Tuple, Optional
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import numpy as np
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from PIL import Image, ImageDraw, ImageFont
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LINE_WIDTH = 20
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def add_text_to_image(image: np.ndarray, text: str, text_color: Tuple[int, int, int] = (0, 0, 0),
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min_lines: Optional[int] = None, add_below: bool = True):
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import textwrap
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lines = textwrap.wrap(text, width=LINE_WIDTH)
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if min_lines is not None and len(lines) < min_lines:
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if add_below:
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lines += [''] * (min_lines - len(lines))
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else:
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lines = [''] * (min_lines - len(lines)) + lines
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h, w, c = image.shape
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offset = int(h * .12)
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img = np.ones((h + offset * len(lines), w, c), dtype=np.uint8) * 255
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font_size = int(offset * .8)
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try:
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font = ImageFont.truetype("assets/OpenSans-Regular.ttf", font_size)
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textsize = font.getbbox(text)
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y_offset = (offset - textsize[3]) // 2
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except:
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font = ImageFont.load_default()
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y_offset = offset // 2
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if add_below:
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img[:h] = image
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else:
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img[-h:] = image
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img = Image.fromarray(img)
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draw = ImageDraw.Draw(img)
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for i, line in enumerate(lines):
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line_size = font.getbbox(line)
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text_x = (w - line_size[2]) // 2
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if add_below:
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draw.text((text_x, h + y_offset + offset * i), line, font=font, fill=text_color)
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else:
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draw.text((text_x, 0 + y_offset + offset * i), line, font=font, fill=text_color)
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return np.array(img)
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def create_table_plot(titles: List[str], images: List[Image.Image], captions: List[str]) -> Image.Image:
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title_max_lines = np.max([len(textwrap.wrap(text, width=LINE_WIDTH)) for text in titles])
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caption_max_lines = np.max([len(textwrap.wrap(text, width=LINE_WIDTH)) for text in captions])
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out_images = []
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for i in range(len(images)):
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im = np.array(images[i])
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im = add_text_to_image(im, titles[i], add_below=False, min_lines=title_max_lines)
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im = add_text_to_image(im, captions[i], add_below=True, min_lines=caption_max_lines)
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out_images.append(im)
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image = Image.fromarray(np.concatenate(out_images, axis=1))
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return image
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