mirror of
https://github.com/Unstructured-IO/unstructured.git
synced 2025-10-31 01:54:25 +00:00
096d23bc28
### Summary This PR is the second part of the "layout analysis" refactor to move it from unstructured-inference repo to unstructured repo, the first part is done in https://github.com/Unstructured-IO/unstructured-inference/pull/305. This PR adds logic to support annotating `inferred` and `extracted` elements. ### Testing ``` PYTHONPATH=. python examples/layout-analysis/visualization.py <file_path> <strategy> <document_type> ``` e.g. ``` PYTHONPATH=. python examples/layout-analysis/visualization.py example-docs/layout-parser-paper-fast.pdf hi_res pdf ```
95 lines
2.9 KiB
Python
95 lines
2.9 KiB
Python
import os
|
|
import pathlib
|
|
import sys
|
|
|
|
import pdf2image
|
|
from PIL import Image
|
|
from unstructured_inference.inference.elements import TextRegion
|
|
from unstructured_inference.visualize import draw_bbox
|
|
|
|
from unstructured.documents.elements import PageBreak
|
|
from unstructured.partition.pdf import partition_pdf
|
|
|
|
CUR_DIR = pathlib.Path(__file__).parent.resolve()
|
|
|
|
|
|
def extract_element_coordinates(elements):
|
|
elements_coordinates = []
|
|
page_elements_coordinates = []
|
|
|
|
for el in elements:
|
|
if isinstance(el, PageBreak) and page_elements_coordinates:
|
|
elements_coordinates.append(page_elements_coordinates)
|
|
page_elements_coordinates = []
|
|
else:
|
|
page_elements_coordinates.append(el.metadata.coordinates)
|
|
|
|
if page_elements_coordinates:
|
|
elements_coordinates.append(page_elements_coordinates)
|
|
|
|
return elements_coordinates
|
|
|
|
|
|
def run_partition_pdf(f_path, strategy, images, output_dir, output_f_basename, is_image):
|
|
elements = partition_pdf(
|
|
f_path,
|
|
strategy=strategy,
|
|
is_image=is_image,
|
|
include_page_breaks=True,
|
|
analysis=True,
|
|
analyzed_image_output_dir_path=output_dir,
|
|
)
|
|
|
|
elements_coordinates = extract_element_coordinates(elements)
|
|
assert len(images) == len(elements_coordinates)
|
|
|
|
for idx, (img, coords_per_page) in enumerate(zip(images, elements_coordinates)):
|
|
for coordinate in coords_per_page:
|
|
points = coordinate.points
|
|
x1, y1 = points[0]
|
|
x2, y2 = points[2]
|
|
el = TextRegion.from_coords(x1, y1, x2, y2)
|
|
img = draw_bbox(img, el, color="red")
|
|
|
|
output_image_path = os.path.join(output_dir, f"{output_f_basename}_{idx + 1}_final.jpg")
|
|
img.save(output_image_path)
|
|
print(f"output_image_path: {output_image_path}")
|
|
|
|
|
|
def run(f_path, strategy, document_type):
|
|
f_basename = os.path.splitext(os.path.basename(f_path))[0]
|
|
output_dir_path = os.path.join(output_basedir_path, f_basename)
|
|
os.makedirs(output_dir_path, exist_ok=True)
|
|
|
|
is_image = document_type == "image"
|
|
if is_image:
|
|
with Image.open(f_path) as img:
|
|
img = img.convert("RGB")
|
|
images = [img]
|
|
else:
|
|
images = pdf2image.convert_from_path(f_path)
|
|
|
|
run_partition_pdf(f_path, strategy, images, output_dir_path, f_basename, is_image)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
if len(sys.argv) < 3:
|
|
print(
|
|
"Please provide the path to the file name as the first argument "
|
|
"and the strategy as the second argument.",
|
|
)
|
|
sys.exit(1)
|
|
|
|
if sys.argv[2] not in ["auto", "hi_res", "ocr_only", "fast"]:
|
|
print("Invalid strategy")
|
|
sys.exit(1)
|
|
|
|
if sys.argv[3] not in ["pdf", "image"]:
|
|
print("Invalid document type")
|
|
sys.exit(1)
|
|
|
|
output_basedir_path = os.path.join(CUR_DIR, "output")
|
|
os.makedirs(output_basedir_path, exist_ok=True)
|
|
|
|
run(f_path=sys.argv[1], strategy=sys.argv[2], document_type=sys.argv[3])
|