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from __future__ import annotations
import os
from pathlib import Path
from queue import SimpleQueue
from threading import Thread
from typing import Any
import gradio as gr # type: ignore
import rerun as rr
from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from gradio_rerun import Rerun # type: ignore
from ocr import detect_and_log_layouts
CUSTOM_PATH = "/"
app = FastAPI()
origins = [
"https://app.rerun.io",
]
app.add_middleware(
CORSMiddleware,
allow_origins=origins,
)
def file_ocr(log_queue: SimpleQueue[Any], file_path: str):
detect_and_log_layouts(log_queue, file_path)
log_queue.put("done")
@rr.thread_local_stream("PaddleOCR")
def log_to_rr(file_path: Path):
stream = rr.binary_stream()
log_queue: SimpleQueue[Any] = SimpleQueue()
handle = Thread(target=file_ocr, args=[log_queue, str(file_path)])
handle.start()
while True:
msg = log_queue.get()
if msg == "done":
break
msg_type = msg[0]
if msg_type == "blueprint":
blueprint = msg[1]
rr.send_blueprint(blueprint)
elif msg_type == "log":
entity_path = msg[1]
args = msg[2]
kwargs = msg[3] if len(msg) >= 4 else {}
# print(entity_path)
# print(args)
# print(kwargs)
rr.log(entity_path, *args, **kwargs)
yield stream.read()
handle.join()
print("done")
DESCRIPTION = """
This space demonstrates the ability to visualize and verify the document layout analysis and text detection using [PaddleOCR](https://github.com/PaddlePaddle/PaddleOCR).
The [PP-Structure](https://github.com/PaddlePaddle/PaddleOCR/tree/main/ppstructure) used for this task, which is an intelligent document analysis system developed by the PaddleOCR team, which aims to help developers better complete tasks related to document understanding such as layout analysis and table recognition.
"""
with gr.Blocks() as demo:
gr.Markdown(DESCRIPTION)
with gr.Row():
with gr.Column(scale=1):
with gr.Row():
#input_image = gr.Image(label="Input Image", image_mode="RGBA", sources="upload", type="filepath")
input_file = gr.File(label="Input file (image/pdf)")
with gr.Row():
button = gr.Button()
with gr.Row():
gr.Examples(
examples=[os.path.join("examples", img_name) for img_name in sorted(os.listdir("examples"))],
inputs=[input_file],
label="Examples",
cache_examples=False,
examples_per_page=12,
)
with gr.Column(scale=4):
viewer = Rerun(streaming=True, height=900)
button.click(log_to_rr, inputs=[input_file], outputs=[viewer])
app = gr.mount_gradio_app(app, demo, path=CUSTOM_PATH)
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