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import gradio as gr
from transformers import PaliGemmaForConditionalGeneration, PaliGemmaProcessor
import spaces
import torch
import re
# Load the model and processor
model = PaliGemmaForConditionalGeneration.from_pretrained("gokaygokay/sd3-long-captioner").to("cpu").eval()
processor = PaliGemmaProcessor.from_pretrained("gokaygokay/sd3-long-captioner")
def modify_caption(caption: str) -> str:
"""
Removes specific prefixes from captions.
Args:
caption (str): A string containing a caption.
Returns:
str: The caption with the prefix removed if it was present.
"""
prefix_substrings = [
('captured from ', ''),
('captured at ', '')
]
pattern = '|'.join([re.escape(opening) for opening, _ in prefix_substrings])
replacers = {opening: replacer for opening, replacer in prefix_substrings}
def replace_fn(match):
return replacers[match.group(0)]
return re.sub(pattern, replace_fn, caption, count=1, flags=re.IGNORECASE)
def create_captions_rich(images):
"""
Generates captions for input images.
Args:
images (list): List of images to generate captions for.
Returns:
list: List of captions, one for each input image.
"""
captions = []
for image in images:
try:
prompt = "caption en"
model_inputs = processor(text=prompt, images=image, return_tensors="pt").to("cpu")
input_len = model_inputs["input_ids"].shape[-1]
with torch.inference_mode():
generation = model.generate(**model_inputs, max_new_tokens=256, do_sample=False)
generation = generation[0][input_len:]
decoded = processor.decode(generation, skip_special_tokens=True)
modified_caption = modify_caption(decoded)
captions.append(modified_caption)
except Exception as e:
captions.append(f"Error processing image: {e}")
return captions
css = """
#mkd {
height: 500px;
overflow: auto;
border: 8px solid #ccc;
}
"""
with gr.Blocks(css=css) as demo:
gr.HTML("<h1><center>Image caption using finetuned PaliGemma on SD3 generation data.<center><h1>")
with gr.Tab(label="Img2Prompt for SD3"):
with gr.Row():
with gr.Column():
input_img = gr.Image(label="Input Image", tool="select", type="pil", interactive=True)
submit_btn = gr.Button(value="Start")
output = gr.Textbox(label="Prompt", lines=10, interactive=True)
submit_btn.click(create_captions_rich, [input_img], [output])
demo.launch(debug=True) |