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import gradio as gr | |
from transformers import AutoProcessor, AutoModelForCausalLM | |
from PIL import Image | |
import requests | |
import copy | |
import matplotlib.pyplot as plt | |
import matplotlib.patches as patches | |
import random | |
import numpy as np | |
import subprocess | |
subprocess.run('pip install flash-attn --no-build-isolation', env={'FLASH_ATTENTION_SKIP_CUDA_BUILD': "TRUE"}, shell=True) | |
model_id = 'microsoft/Florence-2-large' | |
model = AutoModelForCausalLM.from_pretrained(model_id, trust_remote_code=True).eval() | |
processor = AutoProcessor.from_pretrained(model_id, trust_remote_code=True) | |
def fig_to_pil(fig): | |
buf = io.BytesIO() | |
fig.savefig(buf, format='png') | |
buf.seek(0) | |
return Image.open(buf) | |
def run_example(task_prompt, image, text_input=None): | |
if text_input is None: | |
prompt = task_prompt | |
else: | |
prompt = task_prompt + text_input | |
inputs = processor(text=prompt, images=image, return_tensors="pt") | |
generated_ids = model.generate( | |
input_ids=inputs["input_ids"], | |
pixel_values=inputs["pixel_values"], | |
max_new_tokens=1024, | |
early_stopping=False, | |
do_sample=False, | |
num_beams=3, | |
) | |
generated_text = processor.batch_decode(generated_ids, skip_special_tokens=False)[0] | |
parsed_answer = processor.post_process_generation( | |
generated_text, | |
task=task_prompt, | |
image_size=(image.width, image.height) | |
) | |
return parsed_answer | |
def plot_bbox(image, data): | |
fig, ax = plt.subplots() | |
ax.imshow(image) | |
for bbox, label in zip(data['bboxes'], data['labels']): | |
x1, y1, x2, y2 = bbox | |
rect = patches.Rectangle((x1, y1), x2-x1, y2-y1, linewidth=1, edgecolor='r', facecolor='none') | |
ax.add_patch(rect) | |
plt.text(x1, y1, label, color='white', fontsize=8, bbox=dict(facecolor='red', alpha=0.5)) | |
ax.axis('off') | |
return fig | |
def draw_polygons(image, prediction, fill_mask=False): | |
draw = ImageDraw.Draw(image) | |
scale = 1 | |
for polygons, label in zip(prediction['polygons'], prediction['labels']): | |
color = random.choice(colormap) | |
fill_color = random.choice(colormap) if fill_mask else None | |
for _polygon in polygons: | |
_polygon = np.array(_polygon).reshape(-1, 2) | |
if len(_polygon) < 3: | |
print('Invalid polygon:', _polygon) | |
continue | |
_polygon = (_polygon * scale).reshape(-1).tolist() | |
if fill_mask: | |
draw.polygon(_polygon, outline=color, fill=fill_color) | |
else: | |
draw.polygon(_polygon, outline=color) | |
draw.text((_polygon[0] + 8, _polygon[1] + 2), label, fill=color) | |
return image | |
def convert_to_od_format(data): | |
bboxes = data.get('bboxes', []) | |
labels = data.get('bboxes_labels', []) | |
od_results = { | |
'bboxes': bboxes, | |
'labels': labels | |
} | |
return od_results | |
def draw_ocr_bboxes(image, prediction): | |
scale = 1 | |
draw = ImageDraw.Draw(image) | |
bboxes, labels = prediction['quad_boxes'], prediction['labels'] | |
for box, label in zip(bboxes, labels): | |
color = random.choice(colormap) | |
new_box = (np.array(box) * scale).tolist() | |
draw.polygon(new_box, width=3, outline=color) | |
draw.text((new_box[0]+8, new_box[1]+2), | |
"{}".format(label), | |
align="right", | |
fill=color) | |
return image | |
def process_image(image, task_prompt, text_input=None): | |
image = Image.fromarray(image) # Convert NumPy array to PIL Image | |
if task_prompt == '<CAPTION>': | |
result = run_example(task_prompt, image) | |
return result, None | |
elif task_prompt == '<DETAILED_CAPTION>': | |
result = run_example(task_prompt, image) | |
return result, None | |
elif task_prompt == '<MORE_DETAILED_CAPTION>': | |
result = run_example(task_prompt, image) | |
return result, None | |
elif task_prompt == '<OD>': | |
results = run_example(task_prompt, image) | |
fig = plot_bbox(image, results['<OD>']) | |
return "", fig_to_pil(fig) | |
elif task_prompt == '<DENSE_REGION_CAPTION>': | |
results = run_example(task_prompt, image) | |
fig = plot_bbox(image, results['<DENSE_REGION_CAPTION>']) | |
return "", fig_to_pil(fig) | |
elif task_prompt == '<REGION_PROPOSAL>': | |
results = run_example(task_prompt, image) | |
fig = plot_bbox(image, results['<REGION_PROPOSAL>']) | |
return "", fig_to_pil(fig) | |
elif task_prompt == '<CAPTION_TO_PHRASE_GROUNDING>': | |
results = run_example(task_prompt, image, text_input) | |
fig = plot_bbox(image, results['<CAPTION_TO_PHRASE_GROUNDING>']) | |
return "", fig_to_pil(fig) | |
elif task_prompt == '<REFERRING_EXPRESSION_SEGMENTATION>': | |
results = run_example(task_prompt, image, text_input) | |
output_image = copy.deepcopy(image) | |
output_image = draw_polygons(output_image, results['<REFERRING_EXPRESSION_SEGMENTATION>'], fill_mask=True) | |
return "", output_image | |
elif task_prompt == '<REGION_TO_SEGMENTATION>': | |
results = run_example(task_prompt, image, text_input) | |
output_image = copy.deepcopy(image) | |
output_image = draw_polygons(output_image, results['<REGION_TO_SEGMENTATION>'], fill_mask=True) | |
return "", output_image | |
elif task_prompt == '<OPEN_VOCABULARY_DETECTION>': | |
results = run_example(task_prompt, image, text_input) | |
bbox_results = convert_to_od_format(results['<OPEN_VOCABULARY_DETECTION>']) | |
fig = plot_bbox(image, bbox_results) | |
return "", fig_to_pil(fig) | |
elif task_prompt == '<REGION_TO_CATEGORY>': | |
results = run_example(task_prompt, image, text_input) | |
return results, None | |
elif task_prompt == '<REGION_TO_DESCRIPTION>': | |
results = run_example(task_prompt, image, text_input) | |
return results, None | |
elif task_prompt == '<OCR>': | |
result = run_example(task_prompt, image) | |
return result, None | |
elif task_prompt == '<OCR_WITH_REGION>': | |
results = run_example(task_prompt, image) | |
output_image = copy.deepcopy(image) | |
output_image = draw_ocr_bboxes(output_image, results['<OCR_WITH_REGION>']) | |
return "", output_image | |
else: | |
return "", None # Return empty string and None for unknown task prompts | |
css = """ | |
#output { | |
height: 500px; | |
overflow: auto; | |
border: 1px solid #ccc; | |
} | |
""" | |
with gr.Blocks(css=css) as demo: | |
gr.HTML("<h1><center>Florence-2 Demo<center><h1>") | |
with gr.Tab(label="Florence-2 Image Captioning"): | |
with gr.Row(): | |
with gr.Column(): | |
input_img = gr.Image(label="Input Picture") | |
task_prompt = gr.Dropdown(choices=[ | |
'<CAPTION>', '<DETAILED_CAPTION>', '<MORE_DETAILED_CAPTION>', '<OD>', | |
'<DENSE_REGION_CAPTION>', '<REGION_PROPOSAL>', '<CAPTION_TO_PHRASE_GROUNDING>', | |
'<REFERRING_EXPRESSION_SEGMENTATION>', '<REGION_TO_SEGMENTATION>', | |
'<OPEN_VOCABULARY_DETECTION>', '<REGION_TO_CATEGORY>', '<REGION_TO_DESCRIPTION>', | |
'<OCR>', '<OCR_WITH_REGION>' | |
], label="Task Prompt") | |
text_input = gr.Textbox(label="Text Input (optional)") | |
submit_btn = gr.Button(value="Submit") | |
with gr.Column(): | |
output_text = gr.Textbox(label="Output Text") | |
output_img = gr.Image(label="Output Image") | |
gr.Examples( | |
examples=[ | |
["image1.jpg", '<CAPTION>'], | |
["image1.jpg", '<OD>'], | |
["image2.jpg", '<OCR_WITH_REGION>'] | |
], | |
inputs=[input_img, task_prompt], | |
outputs=[output_text, output_img], | |
fn=process_image, | |
cache_examples=True, | |
label='Try examples' | |
) | |
submit_btn.click(process_image, [input_img, task_prompt, text_input], [output_text, output_img]) | |
demo.launch(debug=True) |