视觉搜索中的目标检索问题

import numpy as np

def euclidean_distance(img1, img2):
    # 将图像转换为灰度图并将其转换为numpy数组
    img1 = np.array(img1.convert("L"))
    img2 = np.array(img2.convert("L"))
    
    # 计算两个图像的差异
    diff = img1 - img2
    
    # 将差异平方并累加得到欧氏距离的平方
    euclidean_distance = np.sqrt(np.sum(np.square(diff)))
    
    return euclidean_distance

class ImageDatabase:
    def __init__(self):
        self.images = []
        
    def add_image(self, image):
        self.images.append(image)
        
    def search_similar_images(self, target_image, num_results=10):
        # 计算目标图像与数据库中其他图像的相似度
        similarities = []
        for image in self.images:
            similarity = euclidean_distance(target_image, image)
            similarities.append(similarity)
            
        # 按相似度从小到大排序
        sorted_indices = np.argsort(similarities)
        
        # 返回相似度最高的前num_results个图像
        similar_images = [self.images[i] for i in sorted_indices[:num_results]]
        
        return similar_images

database = ImageDatabase()
database.add_image(image1)
database.add_image(image2)
database.add_image(image3)
...

target_image = load_image("target.jpg")
similar_images = database.search_similar_images(target_image)