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import gradio as gr |
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import cv2 |
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import easyocr |
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import numpy as np |
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import os |
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from PIL import Image |
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from ultralytics import YOLO |
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from datetime import datetime |
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model = YOLO("/home/user/app/best.pt") |
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label_map = {0: "Analog", 1: "Digital", 2: "Non-LP"} |
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reader = easyocr.Reader(['bn']) |
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def annotate_frame(frame): |
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input_img = cv2.resize(frame, (640, 640)) |
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results = model(input_img)[0] |
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detections = results.boxes.data.cpu().numpy() |
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for det in detections: |
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if len(det) < 6: |
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continue |
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x1, y1, x2, y2, conf, cls = det |
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x1, y1, x2, y2 = map(int, [x1, y1, x2, y2]) |
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label = label_map.get(int(cls), "Unknown") |
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percent = f"{conf * 100:.2f}%" |
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cv2.rectangle(input_img, (x1, y1), (x2, y2), (255, 0, 0), 2) |
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cv2.putText(input_img, f"{label}: {percent}", (x1, y1 - 10), |
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cv2.FONT_HERSHEY_SIMPLEX, 0.6, (0, 255, 0), 2) |
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cropped = frame[y1:y2, x1:x2] |
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if cropped.size > 0: |
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ocr_result = reader.readtext(cropped) |
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for i, item in enumerate(ocr_result): |
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text = item[1].strip() |
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conf = item[2] |
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cv2.putText(input_img, text, (x1, y2 + 20 + i*25), |
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cv2.FONT_HERSHEY_SIMPLEX, 0.6, (0, 255, 255), 2) |
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return cv2.cvtColor(input_img, cv2.COLOR_BGR2RGB) |
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def process_input(input_file): |
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file_path = input_file.name |
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ext = os.path.splitext(file_path)[-1].lower() |
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if ext in ['.mp4', '.avi', '.mov']: |
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cap = cv2.VideoCapture(file_path) |
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fourcc = cv2.VideoWriter_fourcc(*'mp4v') |
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fps = cap.get(cv2.CAP_PROP_FPS) |
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width = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH)) |
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height = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT)) |
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timestamp = datetime.now().strftime("%Y%m%d%H%M%S") |
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output_path = f"annotated_{timestamp}.mp4" |
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out = cv2.VideoWriter(output_path, fourcc, fps, (640, 640)) |
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while cap.isOpened(): |
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ret, frame = cap.read() |
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if not ret: |
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break |
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annotated = annotate_frame(frame) |
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annotated_resized = cv2.resize(annotated, (640, 640)) |
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out.write(cv2.cvtColor(annotated_resized, cv2.COLOR_RGB2BGR)) |
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cap.release() |
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out.release() |
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return output_path, "", "" |
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else: |
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frame = cv2.imread(file_path) |
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if frame is None: |
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return None, "Invalid image", "" |
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annotated = annotate_frame(frame) |
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pil_img = Image.fromarray(annotated) |
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return pil_img, "", "" |
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interface = gr.Interface( |
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fn=process_input, |
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inputs=gr.File(type="filepath", label="Upload Image or Video"), |
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outputs=[ |
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gr.Video(label="Output Video or Image") | gr.Image(type="pil", label="Output"), |
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gr.Textbox(label="Detected Text (Bangla)"), |
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gr.Textbox(label="Confidence (%)") |
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], |
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title="YOLOv5 License Plate Detector (Bangla OCR)", |
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description="Upload an image or video. Detects license plates and extracts Bangla text using EasyOCR." |
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) |
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interface.launch() |
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