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import gradio as gr
import numpy as np
import torch
from PIL import Image
from gradio_image_prompter import ImagePrompter
from transformers import AutoProcessor, UdopForConditionalGeneration
import easyocr
from PIL import Image
import spaces
from typing import Optional, List, TypedDict, Union, Literal
class PromptValue(TypedDict):
image: Optional[Union[Image.Image, str]]
points: Optional[List[List[float]]]
processor = AutoProcessor.from_pretrained("microsoft/udop-large", apply_ocr=False)
model = UdopForConditionalGeneration.from_pretrained("microsoft/udop-large")
device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
@spaces.GPU
def udop_box_inference(image, text_prompt, box_coordinates):
if box_coordinates != []:
box_coordinates = [box_coordinates[0], box_coordinates[1], box_coordinates[3], box_coordinates[4]]
extracted_image = extract_box(image, box_coordinates)
extracted_image.save("cropped_image.png")
reader = easyocr.Reader(['en'])
result = reader.readtext('cropped_image.png')
texts = []
bboxs = []
for (bbox, text, prob) in result:
texts.append(text)
bboxs.append([bbox[0][0], bbox[0][1], bbox[2][0], bbox[2][1]])
height = image.size[1]
width = image.size[0]
image = image.convert("RGB")
norm_boxes = []
for box in bboxs:
norm_boxes.append(normalize_bbox(box, width, height))
encoding = processor(image, text_prompt, texts, boxes=norm_boxes, return_tensors="pt")
predicted_ids = model.generate(**encoding)
return processor.batch_decode(predicted_ids, skip_special_tokens=True)[0]
def normalize_bbox(bbox, width, height):
return [
int(1000 * (bbox[0] / width)),
int(1000 * (bbox[1] / height)),
int(1000 * (bbox[2] / width)),
int(1000 * (bbox[3] / height)),
]
def extract_box(image, coordinates):
if type(image) == str:
image = Image.open(image)
if coordinates==[]:
return image
else:
x, y, x2, y2 = coordinates
cropped_image = image.crop((x, y, x2, y2))
return cropped_image
def infer_box(prompts, text_prompts):
# background (original image) layers[0] ( point prompt) composite (total image)
image = prompts["image"]
if image is None:
gr.Error("Please upload an image and draw a box before submitting")
try:
points = prompts["points"][0]
except:
points = []
return udop_box_inference(image, text_prompts, points)
with gr.Blocks(title="UDOP") as demo:
gr.Markdown("# UDOP")
gr.Markdown("UDOP is a cutting-edge foundation model for a document understanding and generation.")
gr.Markdown("Try UDOP in this demo. Simply upload a document, draw a box on part of the image you'd like UDOP to work and enter a prompt. If you don't draw a box, the model will take into account the whole image. You can try one of the examples to see how it works.")
with gr.Row():
with gr.Column():
im = ImagePrompter(type="pil", label="Input Document")
text_prompt = gr.Textbox(label = "Text Prompt with Task Prefix")
btn = gr.Button("Submit")
with gr.Column():
output = gr.Textbox(label="UDOP Output")
with gr.Row():
gr.Examples(
examples = [[PromptValue(image = "./dummy_pdf.png",
points = [[87.0, 908.0, 2.0, 456.0, 972.0, 3.0]]), "Question answering. What is the objective?"],
[PromptValue(image = "./docvqa_example (3).png",
points = [[]]), "Question answering. How much is the total?"],
[PromptValue(image = "./docvqa_example (3).png",
points = [[]]), "Document Classification."]],
inputs=[im, text_prompt],
outputs=output,
fn=infer_box,
)
btn.click(infer_box, inputs=[im,text_prompt], outputs=[output])
demo.launch(debug=True) |