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Update app.py
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app.py
CHANGED
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@@ -6,7 +6,6 @@ import numpy as np
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import gradio as gr
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import os
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import logging
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import time
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# Set up logging
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logging.basicConfig(level=logging.INFO)
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@@ -16,13 +15,13 @@ logger = logging.getLogger(__name__)
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os.makedirs(os.getenv('EASYOCR_MODULE_PATH', '/app/.EasyOCR'), exist_ok=True)
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os.makedirs(os.getenv('YOLO_CONFIG_DIR', '/app/.config/Ultralytics'), exist_ok=True)
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# Download pretrained
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ANPR_WEIGHTS = "anpr_yolov8.pt"
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if not os.path.exists(ANPR_WEIGHTS):
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logger.info(f"Downloading model weights to {ANPR_WEIGHTS}")
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os.system(f"wget -O {ANPR_WEIGHTS} https://github.com/ultralytics/assets/releases/download/v8.2.0/yolov8n.pt")
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# Load YOLO
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try:
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model = YOLO(ANPR_WEIGHTS)
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logger.info(f"Successfully loaded YOLO model from {ANPR_WEIGHTS}")
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@@ -30,7 +29,7 @@ except Exception as e:
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logger.error(f"Error loading YOLO model from {ANPR_WEIGHTS}: {str(e)}")
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raise
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# Load OCR reader
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try:
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reader = easyocr.Reader(['en'], model_storage_directory=os.getenv('EASYOCR_MODULE_PATH', '/app/.EasyOCR'))
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logger.info("Successfully initialized EasyOCR reader")
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@@ -39,74 +38,45 @@ except Exception as e:
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raise
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def detect_and_read_plate(image):
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start_time = time.time()
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logger.info("Starting image processing for license plate detection")
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try:
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# Resize image to reduce processing time (optional, adjust as needed)
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max_size = 640
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h, w = image.shape[:2]
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if max(h, w) > max_size:
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scale = max_size / max(h, w)
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image = cv2.resize(image, (int(w * scale), int(h * scale)))
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logger.info(f"Resized image to {image.shape[:2]}")
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detected_texts = []
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results = model(image
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logger.info(f"YOLO model returned {len(results)} results")
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for result in results:
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boxes = result.boxes.xyxy.cpu().numpy()
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confidences = result.boxes.conf.cpu().numpy()
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logger.info(f"Detected {len(boxes)} bounding boxes")
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for box, conf in zip(boxes, confidences):
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x1, y1, x2, y2 = map(int, box)
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# Skip small or invalid boxes
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if (x2 - x1) < 20 or (y2 - y1) < 10:
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logger.warning(f"Skipping small box: ({x1}, {y1}, {x2}, {y2})")
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continue
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# Crop the detected license plate
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plate_img = image[y1:y2, x1:x2]
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if plate_img.size == 0:
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logger.warning("Empty cropped image, skipping")
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continue
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if text.strip():
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detected_texts.append(text)
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logger.info(f"Detected Plate: {text} (confidence: {conf:.2f})")
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else:
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logger.info("OCR returned empty or low-confidence text")
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else:
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logger.info("No text detected by EasyOCR")
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# Draw bounding box
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cv2.rectangle(image, (x1, y1), (x2, y2), (0, 255, 0), 2)
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logger.
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continue
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# Prepare output
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output_text = "\n".join(detected_texts) if detected_texts else "No license plate detected"
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logger.info(f"Processing completed in {processing_time:.2f} seconds. Output text: {output_text}")
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return image, output_text
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except Exception as e:
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logger.error(f"Error during detection: {str(e)}")
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return image, f"Error processing image: {str(e)}"
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# Create Gradio interface
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with gr.Blocks() as demo:
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gr.Markdown("# Automatic Number Plate Recognition (ANPR)")
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gr.Markdown("Upload an image of a car to detect and read its license plate.
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with gr.Row():
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image_input = gr.Image(type="numpy", label="Upload an image of a car")
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import gradio as gr
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import os
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import logging
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# Set up logging
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logging.basicConfig(level=logging.INFO)
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os.makedirs(os.getenv('EASYOCR_MODULE_PATH', '/app/.EasyOCR'), exist_ok=True)
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os.makedirs(os.getenv('YOLO_CONFIG_DIR', '/app/.config/Ultralytics'), exist_ok=True)
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# Download pretrained model
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ANPR_WEIGHTS = "anpr_yolov8.pt"
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if not os.path.exists(ANPR_WEIGHTS):
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logger.info(f"Downloading model weights to {ANPR_WEIGHTS}")
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os.system(f"wget -O {ANPR_WEIGHTS} https://github.com/ultralytics/assets/releases/download/v8.2.0/yolov8n.pt")
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# Load YOLO model
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try:
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model = YOLO(ANPR_WEIGHTS)
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logger.info(f"Successfully loaded YOLO model from {ANPR_WEIGHTS}")
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logger.error(f"Error loading YOLO model from {ANPR_WEIGHTS}: {str(e)}")
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raise
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# Load OCR reader
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try:
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reader = easyocr.Reader(['en'], model_storage_directory=os.getenv('EASYOCR_MODULE_PATH', '/app/.EasyOCR'))
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logger.info("Successfully initialized EasyOCR reader")
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raise
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def detect_and_read_plate(image):
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logger.info("Starting image processing for license plate detection")
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try:
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detected_texts = []
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results = model(image) # Use default confidence threshold
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logger.info(f"YOLO model returned {len(results)} results")
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for result in results:
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boxes = result.boxes.xyxy.cpu().numpy()
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logger.info(f"Detected {len(boxes)} bounding boxes")
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for box in boxes:
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x1, y1, x2, y2 = map(int, box)
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# Crop the detected license plate
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plate_img = image[y1:y2, x1:x2]
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if plate_img.size == 0:
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logger.warning("Empty cropped image, skipping")
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continue
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# Run OCR
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logger.info("Running EasyOCR on cropped plate")
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ocr_result = reader.readtext(plate_img)
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if ocr_result:
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text = " ".join([res[1] for res in ocr_result])
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detected_texts.append(text)
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logger.info(f"Detected Plate: {text}")
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# Draw bounding box
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cv2.rectangle(image, (x1, y1), (x2, y2), (0, 255, 0), 2)
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else:
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logger.info("No text detected by EasyOCR")
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output_text = "\n".join(detected_texts) if detected_texts else "No license plate detected"
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logger.info(f"Output text: {output_text}")
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return image, output_text
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except Exception as e:
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logger.error(f"Error during detection: {str(e)}")
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return image, f"Error processing image: {str(e)}"
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# Create Gradio interface
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with gr.Blocks() as demo:
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gr.Markdown("# Automatic Number Plate Recognition (ANPR)")
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gr.Markdown("Upload an image of a car to detect and read its license plate.")
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with gr.Row():
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image_input = gr.Image(type="numpy", label="Upload an image of a car")
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