CLIP-ViT-B-32-laion2B-s34B-b79K | Laion

METRICcosine
DIMENSION512
TASKembedding

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Overview

Excels at understanding relationships between text and images. Its training set is the English subset of Laion-5B (Laion2B-en). It’s particularly well-suited for tasks like:
  • Zero-Shot Image Classification: Classify images based on text descriptions without further training.
  • Image-Text Retrieval: Search for similar images or text descriptions within a dataset.
  • Image Segmentation: Identify and segment different objects within an image based on their semantic meaning.
Key benefits for developers:
  • Open-source and accessible: Train and fine-tune the model for your specific needs.
  • Great performance: Can achieve high accuracy on various text-image tasks.
  • Versatile: Applicable to diverse applications, from image search to image generation.

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Using the model

For best results, use a Jupyter Notebook to interact with this dataset.

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Installation:

!pip install pinecone datasets transformers

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Create Index

from pinecone import Pinecone, ServerlessSpec

pc = Pinecone(api_key="API_KEY")

# Create Index
index_name = "clip-vit-b-32-laion2b-s34b-b79k"

if not pc.has_index(index_name):
  pc.create_index(
      name=index_name,
      dimension=768,
      metric="cosine",
      spec=ServerlessSpec(
          cloud='aws',
          region='us-east-1'
      )
  )

index = pc.Index(index_name)

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Embed & Upsert


# Embed data
# We'll use an example dataset of images of animals and cities:

from datasets import load_dataset

data = load_dataset(
    "jamescalam/image-text-demo",
    split="train"
)

from transformers import CLIPProcessor, CLIPVisionModel
import torch

model_id = "laion/CLIP-ViT-B-32-laion2B-s34B-b79K"

processor = CLIPProcessor.from_pretrained(model_id)
model = CLIPVisionModel.from_pretrained(model_id)

# move model to device if possible
device = 'cuda' if torch.cuda.is_available() else 'cpu'
model.to(device)


### ClIP allows for both text and image embeddings
import torch

def create_image_embeddings(image):
  with torch.no_grad():
    vals = processor(
        text=None,
        images=image,
        return_tensors='pt').to(device)
    image_embedding = model(**vals).pooler_output
  return image_embedding[0]


# We can embed the images and search with them too!

from IPython.display import Image 

def apply_vectorization(data):

  data["image_embeddings"] = create_image_embeddings(data["image"])
  return data


data = data.map(apply_vectorization)
ids = [str(i) for i in range(0, data.num_rows)]
data = data.add_column("id", ids)



vectors = []
for i in range(0, data.num_rows):
  d = data[i]
  vectors.append({
      "id": d["id"],
      "values": d["image_embeddings"],
      "metadata": {"caption": d["text"]}
  })

index.upsert(
    vectors=vectors,
    namespace="ns1"
)

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Query



def id_to_image_helper(id, data):
  # given id, renders the images and captions
  # resizes in order to speed up showing the image

  image = data[int(id)]
  print(image["text"])
  return image["image"].resize((500, 500))


# we choose the first image, which is a city

query = data[int(1)]["image"]

x = create_image_embeddings(query).tolist()

results = index.query(
    namespace="ns1",
    vector=x,
    top_k=3,
    include_values=False,
    include_metadata=True
)

print(results)

#view the results visually
id_to_image_helper(results["matches"][0]["id"], data)
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