51 lines
1.9 KiB
Python
51 lines
1.9 KiB
Python
import os
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import clip
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import torch
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from torchvision.datasets import CIFAR100
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import gradio as gr
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# Load the model
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device = "cpu"
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model, preprocess = clip.load('ViT-B/32', device)
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# Download the dataset
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cifar100 = CIFAR100(root=os.path.expanduser("~/.cache"), download=True, train=False)
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def classify(img, user_text):
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image = preprocess(img).unsqueeze(0).to(device)
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user_texts = user_text.split(",")
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text_sources = cifar100.classes + user_texts
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text_inputs = torch.cat([clip.tokenize(f"a photo of a {c}") for c in text_sources]).to(device)
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# Calculate features
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with torch.no_grad():
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image_features = model.encode_image(image)
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text_features = model.encode_text(text_inputs)
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# Pick the top 5 most similar labels for the image
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image_features /= image_features.norm(dim=-1, keepdim=True)
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text_features /= text_features.norm(dim=-1, keepdim=True)
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similarity = (100.0 * image_features @ text_features.T).softmax(dim=-1)
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values, indices = similarity[0].topk(5)
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result = {}
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for value, index in zip(values, indices):
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result[text_sources[index]] = value.item()
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return result
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inputs = [
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gr.inputs.Image(type='pil', label="Original Image"),
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gr.inputs.Textbox(lines=1, label="optional categories")
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]
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outputs = gr.outputs.Label(type="confidences",num_top_classes=5)
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title = "CLIP"
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description = "demo for OpenAI's CLIP. To use it, simply upload your image, or click one of the examples to load them and optionally add a text label seperated by commas to help clip classify the image better. Read more at the links below."
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article = "<p style='text-align: center'><a href='https://openai.com/blog/clip/'>CLIP: Connecting Text and Images</a> | <a href='https://github.com/openai/CLIP'>Github Repo</a></p>"
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examples = [
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["zebra.jpg"],
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["giraffe.jpg"]
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]
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gr.Interface(classify, inputs, outputs, title=title, description=description, examples=examples).launch(debug=True) |