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app2.py

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+import torch
+import gradio as gr 
+import re 
+from transformers import AutoTokenizer, ViTFeatureExtractor, VisionEncoderDecoderModel
+
+device='cpu'
+encoder_checkpoint = "nlpconnect/vit-gpt2-image-captioning"
+decoder_checkpoint = "nlpconnect/vit-gpt2-image-captioning"
+model_checkpoint = "nlpconnect/vit-gpt2-image-captioning"
+feature_extractor = ViTFeatureExtractor.from_pretrained(encoder_checkpoint)
+tokenizer = AutoTokenizer.from_pretrained(decoder_checkpoint)
+model = VisionEncoderDecoderModel.from_pretrained(model_checkpoint).to(device)
+
+def predict(image,max_length=64, num_beams=4):
+  image = image.convert('RGB')
+  image = feature_extractor(image, return_tensors="pt").pixel_values.to(device)
+  clean_text = lambda x: x.replace('<|endoftext|>','').split('\n')[0]
+  caption_ids = model.generate(image, max_length = max_length)[0]
+  caption_text = clean_text(tokenizer.decode(caption_ids))
+  return caption_text 
+
+def set_example_image(example: list) -> dict:
+    return gr.Image.update(value=example[0])
+css = '''
+h1#title {
+  text-align: center;
+}
+h3#header {
+  text-align: center;
+}
+img#overview {
+  max-width: 800px;
+  max-height: 600px;
+}
+img#style-image {
+  max-width: 1000px;
+  max-height: 600px;
+}
+'''
+demo = gr.Blocks(css=css)
+with demo:
+  gr.Markdown('''<h1 id="title">Image Caption 🖼️</h1>''')
+  gr.Markdown('''Made by : Shreyas Dixit''')
+  with gr.Column():
+        input = gr.inputs.Image(label="Upload your Image", type = 'pil', optional=True)
+        output = gr.outputs.Textbox(type="auto",label="Captions")
+  btn = gr.Button("Genrate Caption")
+  btn.click(fn=predict, inputs=input, outputs=output)
+
+demo.launch()