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Create app.py
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app.py
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import gradio as gr
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import cv2
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import numpy as np
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import tensorflow as tf
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import pickle
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import requests
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import io
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import tempfile
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import sakshi_ocr
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# Model & Encoder URLs
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MODEL_URL = "https://huggingface.co/sameernotes/hindi-ocr/resolve/main/hindi_ocr_model.keras"
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ENCODER_URL = "https://huggingface.co/sameernotes/hindi-ocr/resolve/main/label_encoder.pkl"
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# Load model from Hugging Face
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@tf.function
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def load_model():
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response = requests.get(MODEL_URL)
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if response.status_code == 200:
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with tempfile.NamedTemporaryFile(delete=False, suffix=".keras") as temp_model:
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temp_model.write(response.content)
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model = tf.keras.models.load_model(temp_model.name)
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return model
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else:
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raise ValueError("Failed to load model from Hugging Face.")
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# Load label encoder from Hugging Face
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def load_label_encoder():
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response = requests.get(ENCODER_URL)
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if response.status_code == 200:
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return pickle.loads(response.content)
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else:
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raise ValueError("Failed to load label encoder.")
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# Initialize model and encoder
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model = load_model()
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label_encoder = load_label_encoder()
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# Word detection function
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def detect_words(image):
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_, binary = cv2.threshold(image, 0, 255, cv2.THRESH_BINARY_INV + cv2.THRESH_OTSU)
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kernel = np.ones((3,3), np.uint8)
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dilated = cv2.dilate(binary, kernel, iterations=2)
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contours, _ = cv2.findContours(dilated, cv2.RETR_EXTERNAL, cv2.CHAIN_APPROX_SIMPLE)
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word_count = sum(1 for c in contours if cv2.boundingRect(c)[2] > 10 and cv2.boundingRect(c)[3] > 10)
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return word_count
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# Process image and predict text
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def process_image(image):
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gray = cv2.cvtColor(image, cv2.COLOR_RGB2GRAY)
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word_count = detect_words(gray)
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img_resized = cv2.resize(gray, (128, 32)) / 255.0
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img_input = img_resized[np.newaxis, ..., np.newaxis]
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pred = model.predict(img_input)
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pred_label_idx = np.argmax(pred)
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pred_label = label_encoder.inverse_transform([pred_label_idx])[0]
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return f"Detected Words: {word_count}\nPredicted Text: {pred_label}"
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# Sakshi OCR function
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def run_sakshi_ocr(image):
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with tempfile.NamedTemporaryFile(delete=False, suffix=".png") as tmp_file:
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cv2.imwrite(tmp_file.name, image)
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output = io.StringIO()
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sakshi_ocr.generate(tmp_file.name, output)
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return output.getvalue()
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# Gradio Interface
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def ocr_pipeline(image):
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text_prediction = process_image(image)
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sakshi_output = run_sakshi_ocr(image)
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return f"{text_prediction}\n\nSakshi OCR Output:\n{sakshi_output}"
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demo = gr.Interface(fn=ocr_pipeline, inputs=gr.Image(type="numpy"), outputs="text")
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demo.launch()
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