Update app.py
Browse files
app.py
CHANGED
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@@ -66,6 +66,141 @@
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import gradio as gr
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import torch
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import numpy as np
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@@ -74,122 +209,77 @@ from PIL import Image
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from transformers import TrOCRProcessor, VisionEncoderDecoderModel
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from craft_text_detector import Craft
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# ----------------------------
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# Device
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# ----------------------------
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device = "cuda" if torch.cuda.is_available() else "cpu"
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-
# ----------------------------
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# Load TrOCR
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# ----------------------------
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print("Loading TrOCR model...")
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processor = TrOCRProcessor.from_pretrained("microsoft/trocr-small-handwritten")
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model = VisionEncoderDecoderModel.from_pretrained(
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"microsoft/trocr-small-handwritten"
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)
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model.to(device)
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model.eval()
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# ----------------------------
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# Load CRAFT
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# ----------------------------
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print("Loading CRAFT text detector...")
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craft = Craft(
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output_dir=None,
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crop_type="poly",
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cuda=(device == "cuda"),
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)
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# ----------------------------
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# Sort boxes (reading order)
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# ----------------------------
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def get_sorted_boxes(boxes):
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items = []
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for box in boxes:
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cx = np.mean(box[:, 0])
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cy = np.mean(box[:, 1])
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items.append((cy, cx, box))
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-
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# group by line (roughly)
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items.sort(key=lambda x: (int(x[0] // 20), x[1]))
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return [b for _, _, b in items]
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-
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# OCR Pipeline
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# ----------------------------
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def process_full_page(image: Image.Image):
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# ALWAYS return (image_or_None, text)
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if image is None:
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return None, "Please upload an image."
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-
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image_np = np.array(image)
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-
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prediction = craft.detect_text(image_np)
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boxes = prediction.get("boxes", [])
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-
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if not boxes:
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return image, "No text detected."
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-
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sorted_boxes = get_sorted_boxes(boxes)
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annotated = image_np.copy()
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texts = []
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-
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for box in sorted_boxes:
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box = box.astype(int)
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cv2.polylines(annotated, [box], True, (255, 0, 0), 2)
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x_min = max(0, box[:, 0].min())
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x_max = min(image_np.shape[1], box[:, 0].max())
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y_min = max(0, box[:, 1].min())
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y_max = min(image_np.shape[0], box[:, 1].max())
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-
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if x_max - x_min < 5 or y_max - y_min < 5:
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continue
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crop = image_np[y_min:y_max, x_min:x_max]
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pil_crop = Image.fromarray(crop).convert("RGB")
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with torch.no_grad():
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pixels = processor(
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images=pil_crop,
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return_tensors="pt"
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).pixel_values.to(device)
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ids = model.generate(pixels)
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text = processor.batch_decode(
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)
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texts.append(text)
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final_text = " ".join(texts)
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return Image.fromarray(annotated), final_text
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with gr.Row():
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vis_output = gr.Image(label="Detections")
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text_output = gr.Textbox(label="Extracted Text", lines=10)
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btn = gr.Button("Process Page", variant="primary")
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btn.click(
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fn=process_full_page,
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inputs=input_img,
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outputs=[vis_output, text_output],
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)
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if __name__ == "__main__":
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demo.launch(
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server_name="0.0.0.0",
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server_port=7860,
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show_api=False,
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)
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# import gradio as gr
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# import torch
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# import numpy as np
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# import cv2
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# from PIL import Image
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# from transformers import TrOCRProcessor, VisionEncoderDecoderModel
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# from craft_text_detector import Craft
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# # ----------------------------
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# # Device
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# # ----------------------------
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# device = "cuda" if torch.cuda.is_available() else "cpu"
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# # ----------------------------
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# # Load TrOCR
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# # ----------------------------
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# print("Loading TrOCR model...")
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# processor = TrOCRProcessor.from_pretrained("microsoft/trocr-small-handwritten")
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# model = VisionEncoderDecoderModel.from_pretrained(
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# "microsoft/trocr-small-handwritten"
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# )
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# model.to(device)
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# model.eval()
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# # ----------------------------
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# # Load CRAFT
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# # ----------------------------
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# print("Loading CRAFT text detector...")
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# craft = Craft(
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# output_dir=None,
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# crop_type="poly",
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# cuda=(device == "cuda"),
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# )
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# # ----------------------------
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# # Sort boxes (reading order)
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# # ----------------------------
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# def get_sorted_boxes(boxes):
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# items = []
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# for box in boxes:
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# cx = np.mean(box[:, 0])
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# cy = np.mean(box[:, 1])
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# items.append((cy, cx, box))
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# # group by line (roughly)
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# items.sort(key=lambda x: (int(x[0] // 20), x[1]))
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# return [b for _, _, b in items]
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+
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# # ----------------------------
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# # OCR Pipeline
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# # ----------------------------
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# def process_full_page(image: Image.Image):
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# # ALWAYS return (image_or_None, text)
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# if image is None:
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# return None, "Please upload an image."
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+
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# image_np = np.array(image)
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# prediction = craft.detect_text(image_np)
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# boxes = prediction.get("boxes", [])
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# if not boxes:
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# return image, "No text detected."
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# sorted_boxes = get_sorted_boxes(boxes)
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# annotated = image_np.copy()
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# texts = []
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# for box in sorted_boxes:
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# box = box.astype(int)
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# cv2.polylines(annotated, [box], True, (255, 0, 0), 2)
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# x_min = max(0, box[:, 0].min())
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# x_max = min(image_np.shape[1], box[:, 0].max())
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# y_min = max(0, box[:, 1].min())
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# y_max = min(image_np.shape[0], box[:, 1].max())
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# if x_max - x_min < 5 or y_max - y_min < 5:
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# continue
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# crop = image_np[y_min:y_max, x_min:x_max]
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# pil_crop = Image.fromarray(crop).convert("RGB")
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# with torch.no_grad():
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# pixels = processor(
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# images=pil_crop,
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# return_tensors="pt"
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# ).pixel_values.to(device)
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# ids = model.generate(pixels)
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# text = processor.batch_decode(
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# ids, skip_special_tokens=True
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# )[0]
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# if text.strip():
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# texts.append(text)
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# final_text = " ".join(texts)
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# return Image.fromarray(annotated), final_text
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# # ----------------------------
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# # Gradio UI
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# # ----------------------------
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# with gr.Blocks(theme=gr.themes.Soft()) as demo:
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# gr.Markdown("# 🕵️♀️ Full-Page Handwritten OCR")
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# gr.Markdown("**CRAFT ➜ TrOCR** (Detection + Recognition)")
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# with gr.Row():
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# input_img = gr.Image(type="pil", label="Upload Full Page")
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# with gr.Row():
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# vis_output = gr.Image(label="Detections")
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# text_output = gr.Textbox(label="Extracted Text", lines=10)
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# btn = gr.Button("Process Page", variant="primary")
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# btn.click(
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# fn=process_full_page,
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# inputs=input_img,
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# outputs=[vis_output, text_output],
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# )
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# if __name__ == "__main__":
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# demo.launch(
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# server_name="0.0.0.0",
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# server_port=7860,
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# show_api=False,
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# )
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import gradio as gr
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import torch
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import numpy as np
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from transformers import TrOCRProcessor, VisionEncoderDecoderModel
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from craft_text_detector import Craft
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device = "cuda" if torch.cuda.is_available() else "cpu"
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print("Loading TrOCR model...")
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processor = TrOCRProcessor.from_pretrained("microsoft/trocr-small-handwritten")
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model = VisionEncoderDecoderModel.from_pretrained("microsoft/trocr-small-handwritten")
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model.to(device)
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model.eval()
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print("Loading CRAFT text detector...")
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craft = Craft(output_dir=None, crop_type="poly", cuda=(device == "cuda"))
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def get_sorted_boxes(boxes):
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items = []
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for box in boxes:
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cx = np.mean(box[:, 0])
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cy = np.mean(box[:, 1])
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items.append((cy, cx, box))
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items.sort(key=lambda x: (int(x[0] // 20), x[1]))
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return [b for _, _, b in items]
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+
def process_full_page(image):
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if image is None:
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return None, "Please upload an image."
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+
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image_np = np.array(image)
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prediction = craft.detect_text(image_np)
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boxes = prediction.get("boxes", [])
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if not boxes:
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return image, "No text detected."
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sorted_boxes = get_sorted_boxes(boxes)
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annotated = image_np.copy()
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texts = []
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+
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for box in sorted_boxes:
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box = box.astype(int)
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cv2.polylines(annotated, [box], True, (255, 0, 0), 2)
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+
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x_min = max(0, box[:, 0].min())
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x_max = min(image_np.shape[1], box[:, 0].max())
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y_min = max(0, box[:, 1].min())
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y_max = min(image_np.shape[0], box[:, 1].max())
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if x_max - x_min < 5 or y_max - y_min < 5:
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continue
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crop = image_np[y_min:y_max, x_min:x_max]
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pil_crop = Image.fromarray(crop).convert("RGB")
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with torch.no_grad():
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pixels = processor(images=pil_crop, return_tensors="pt").pixel_values.to(device)
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ids = model.generate(pixels)
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text = processor.batch_decode(ids, skip_special_tokens=True)[0]
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if text.strip():
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texts.append(text)
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final_text = " ".join(texts)
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return Image.fromarray(annotated), final_text
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demo = gr.Interface(
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fn=process_full_page,
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inputs=gr.Image(type="pil", label="Upload Full Page"),
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outputs=[
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gr.Image(label="Detections"),
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gr.Textbox(label="Extracted Text", lines=10)
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],
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title="🕵️♀️ Full-Page Handwritten OCR",
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description="CRAFT ➜ TrOCR (Detection + Recognition)"
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)
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if __name__ == "__main__":
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demo.launch(server_name="0.0.0.0", server_port=7860)
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