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"""
Thanks to Freddy Boulton (https://github.com/freddyaboulton) for helping with this.
"""
import pickle
import gradio as gr
from datasets import load_dataset
from transformers import AutoModel
# `LSH` and `Table` imports are necessary in order for the
# `lsh.pickle` file to load successfully.
from similarity_utils import LSH, BuildLSHTable, Table
seed = 42
# Only runs once when the script is first run.
with open("lsh.pickle", "rb") as handle:
loaded_lsh = pickle.load(handle)
# Load model for computing embeddings.
model_ckpt = "nateraw/vit-base-beans"
model = AutoModel.from_pretrained(model_ckpt)
lsh_builder = BuildLSHTable(model)
lsh_builder.lsh = loaded_lsh
# Candidate images.
dataset = load_dataset("beans")
candidate_dataset = dataset["train"].shuffle(seed=seed)
def query(image, top_k):
results = lsh_builder.query(image)
# Should be a list of string file paths for gr.Gallery to work
images = []
# List of labels for each image in the gallery
labels = []
candidates = []
for idx, r in enumerate(sorted(results, key=results.get, reverse=True)):
if idx == top_k:
break
image_id, label = r.split("_")[0], r.split("_")[1]
candidates.append(candidate_dataset[int(image_id)]["image"])
labels.append(f"Label: {label}")
for i, candidate in enumerate(candidates):
filename = f"similar_{i}.png"
candidate.save(filename)
images.append(filename)
# The gallery component can be a list of tuples, where the first element is a path to a file
# and the second element is an optional caption for that image
return list(zip(images, labels))
title = "Fetch similar beans."
description = "This Space demos an image similarity system. You can refer to [this notebook](TODO) to know the details of the system. You can pick any image from the available samples below. On the right hand side, you'll find the similar images returned"
" by the system. The example images have been named with their corresponding integer class labels for easier identification. The fetched images will also have their integer labels tagged so that you can validate the correctness of the results."
# You can set the type of gr.Image to be PIL, numpy or str (filepath)
# Not sure what the best for this demo is.
gr.Interface(
query,
inputs=[gr.Image(type="pil"), gr.Slider(value=5, minimum=1, maximum=10, step=1)],
outputs=gr.Gallery().style(grid=[3], height="auto"),
# Filenames denote the integer labels. Know here: https://hf.co/datasets/beans
title=title,
description=description,
examples=[["0.png", 5], ["1.png", 5], ["2.png", 5]],
).launch()
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