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# -*- coding: utf-8 -*-
"""Untitled4.ipynb
Automatically generated by Colab.
Original file is located at
https://colab.research.google.com/drive/1LWcAEqZ865KCYhK-crQ3RKcFJEcH4xhD
"""
import torch
from transformers import Blip2Processor, Blip2ForConditionalGeneration
from PIL import Image
import gradio as gr
from io import BytesIO
import requests
# -----------------------------
# Device and Model Setup
# -----------------------------
device = "cuda" if torch.cuda.is_available() else "cpu"
print(f"Using device: {device}")
model_name = "Salesforce/blip2-flan-t5-xl-coco" # public model
processor = Blip2Processor.from_pretrained(model_name)
model = Blip2ForConditionalGeneration.from_pretrained(model_name)
model.to(device)
# -----------------------------
# Inference Function
# -----------------------------
def analyze_eo_image(image, question):
if image is None or question.strip() == "":
return "Please upload an EO image and ask a question."
if image.mode != "RGB":
image = image.convert("RGB")
inputs = processor(image, question, return_tensors="pt").to(
device, torch.float16 if device=="cuda" else torch.float32
)
out = model.generate(
**inputs,
max_new_tokens=80,
do_sample=True,
temperature=0.7
)
return processor.decode(out[0], skip_special_tokens=True)
# -----------------------------
# Optional: URL input
# -----------------------------
def analyze_eo_url(url, question):
try:
response = requests.get(url)
image = Image.open(BytesIO(response.content)).convert("RGB")
return analyze_eo_image(image, question)
except Exception as e:
return f"Error loading image: {e}"
# -----------------------------
# Beautiful Gradio Layout
# -----------------------------
with gr.Blocks(title="🌍 EO Image Analysis") as demo:
gr.Markdown(
"""
# 🌍 Earth Observation Image Analysis
Ask questions about EO images using a multimodal AI model.
Powered by BLIP-2 + FLAN-T5.
**Examples:** "Identify land cover types", "Where is the river?", "Has urban area expanded?"
"""
)
with gr.Tabs():
with gr.Tab("Upload Image"):
with gr.Row():
with gr.Column(scale=1):
img_input = gr.Image(type="pil", label="Upload EO Image")
question_input = gr.Textbox(label="Ask a question about the image", placeholder="E.g. Where is the river?")
submit_btn = gr.Button("Analyze 🌟")
with gr.Column(scale=1):
output_text = gr.Textbox(label="AI Answer", interactive=False)
submit_btn.click(analyze_eo_image, inputs=[img_input, question_input], outputs=output_text)
with gr.Tab("Use Image URL"):
with gr.Row():
with gr.Column(scale=1):
url_input = gr.Textbox(label="Enter Image URL")
url_question = gr.Textbox(label="Ask a question about the image")
url_btn = gr.Button("Analyze 🌟")
with gr.Column(scale=1):
url_output = gr.Textbox(label="AI Answer", interactive=False)
url_btn.click(analyze_eo_url, inputs=[url_input, url_question], outputs=url_output)
gr.Markdown(
"💡 Tip: Use clear, simple questions for best results. Supports natural language queries about EO images."
)
demo.launch(share=True)
from huggingface_hub import login
login()
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