import torch
import numpy as np
from transformers import CLIPProcessor, CLIPModel
from PIL import Image
import time
import os
import redis
# 连接 Redis 数据库,地址换成你自己的 Redis 地址
client = redis.Redis(host="redis-server", port=6379, decode_responses=True)
res = client.ping()
print("redis connected:", res)
model_name_or_local_path = "openai/clip-vit-base-patch16"
model = CLIPModel.from_pretrained(model_name_or_local_path)
processor = CLIPProcessor.from_pretrained(model_name_or_local_path)
image_directory = "images"
png_files = [filename for filename in os.listdir(image_directory) if filename.endswith(".png")]
sorted_png_files = sorted(png_files, key=lambda x: int(x.split('-')[-1].split('.')[0]))
# 初始化 Redis Pipeline
pipeline = client.pipeline()
for i, png_file in enumerate(sorted_png_files, start=1):
# 初始化 Redis,先使用 PNG 文件名作为 Key 和 Value,后续再更新为图片特征向量
pipeline.json().set(png_file, "$", png_file)
batch_size = 1
with torch.no_grad():
for idx, png_file in enumerate(sorted_png_files, start=1):
print(f"{idx}: {png_file}")
start = time.time()
image = Image.open(f"{image_directory}/{png_file}")
inputs = processor(images=image, return_tensors="pt", padding=True)
image_features = model.get_image_features(inputs.pixel_values)[batch_size-1]
embeddings = image_features.numpy().astype(np.float32).tolist()
print('image_features:', embeddings)
vector_dimension = len(embeddings)
print('vector_dimension:', vector_dimension)
end = time.time()
print('%s Seconds'%(end-start))
# 更新 Redis 数据库中的文件向量
pipeline.json().set(png_file, "$", embeddings)
res = pipeline.execute()
print('redis set:', res)
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温馨提示
图片搜索引擎,很简单。三步构建属于你自己的图片搜索引擎,掌握向量数据库和以图搜图、文本搜索图片 教程 准备数据:开源软件 FFmpeg 生成模型使用图片数据集 处理图片数据,构建向量索引:使用 Redis 构建轻量的向量数据库应用:图片搜索引擎(一) 实现向量搜索、图片检索:使用 Redis 构建轻量的向量数据库应用:图片搜索引擎(二)
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