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import numpy as np
import gradio as gr
import cv2

def calculate_similarity(img1, img2):
    if len(img1.shape) == 2:
        img1 = cv2.cvtColor(img1, cv2.COLOR_GRAY2RGB)
    if len(img2.shape) == 2:
        img2 = cv2.cvtColor(img2, cv2.COLOR_GRAY2RGB)
    img1_resized = cv2.resize(img1, (img2.shape[1], img2.shape[0]))
    diff = cv2.absdiff(img1_resized, img2)
    similarity_score = np.mean(diff)
    return similarity_score

def image_similarity(img1, img2):
    img1 = img1.astype(np.uint8)
    img2 = img2.astype(np.uint8)
    similarity_score = calculate_similarity(img1, img2)
    result = f"Similarity Score: {similarity_score:.4f}"
    return result

iface = gr.Interface(
    fn=image_similarity,
    inputs=[
        gr.inputs.Image(type="numpy", label="Image 1"),
        gr.inputs.Image(type="numpy", label="Image 2")
    ],
    outputs="text",
    title="Image Similarity Calculator",
    description="Upload two images to compute their similarity."
)
iface.launch()