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Update app.py
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app.py
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# app.py
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import numpy as np
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np.int = int #
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import cv2, json, tempfile, re
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import gradio as gr
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from ultralytics import YOLO
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from paddleocr import PaddleOCR
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# 1) Load models
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yolo = YOLO("models/best.pt")
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# 2)
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def format_turkish_plate(s: str) -> str:
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s = re.sub(r'[^A-Z0-9]', '', s.upper())
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m = re.match(r'^(\d{2})([A-Z]{1,3})(\d{2,4})$', s)
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return f"{m.group(1)} {m.group(2)} {m.group(3)}" if m else "Unknown"
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# 3)
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def run_image(img, conf=0.25):
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bgr = cv2.cvtColor(img, cv2.COLOR_RGB2BGR)
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res = yolo(bgr, conf=conf)[0]
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out = bgr.copy()
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for box,
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x1,y1,x2,y2 = box.astype(int)
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crop = out[y1:y2, x1:x2]
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if crop.size==0:
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if recs and recs[0]:
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else:
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plate = format_turkish_plate(
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label = f"{plate} ({ocr_score:.2f})"
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cv2.rectangle(out, (x1,y1),(x2,y2), (0,255,0), 2)
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cv2.putText(out, label, (x1,y1-5),
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cv2.FONT_HERSHEY_SIMPLEX, 0.6, (0,255,0), 2)
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return cv2.cvtColor(out, cv2.COLOR_BGR2RGB), f"{len(res.boxes)} plate(s) detected"
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# 4) Video
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def run_video(video_file, conf=0.25):
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cap = cv2.VideoCapture(video_file)
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fps = cap.get(cv2.CAP_PROP_FPS)
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w
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outfp = tempfile.NamedTemporaryFile(suffix=".mp4", delete=False).name
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writer = cv2.VideoWriter(outfp, cv2.VideoWriter_fourcc(*"mp4v"), fps, (w,h))
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records
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while True:
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ret, frame = cap.read()
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if not ret: break
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idx += 1
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t = idx / fps
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res = yolo(frame, conf=conf)[0]
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for (x1,y1,x2,y2) in res.boxes.xyxy.cpu().numpy().astype(int):
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crop = frame[y1:y2, x1:x2]
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if crop.size==0:
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plate_img = cv2.resize(crop, (128,32))
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if recs and recs[0]:
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else:
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plate = format_turkish_plate(
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if plate != "Unknown":
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records.append({
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cv2.rectangle(frame, (x1,y1),(x2,y2), (0,255,0), 2)
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cv2.putText(frame, plate, (x1,y1-5),
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cap.release(); writer.release()
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with open("output.json","w") as f:
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json.dump(records, f, indent=2)
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return outfp
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# 5) Gradio UI
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with gr.Blocks() as demo:
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gr.Markdown("## π License Plate Detection + Recognition")
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with gr.Row():
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with gr.Column():
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img_in = gr.Image(type="numpy")
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vid_in = gr.File(label="Video (.mp4)")
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conf = gr.Slider(0,1,0.25,0.01)
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b1 = gr.Button("Run Image")
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b2 = gr.Button("Run Video")
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with gr.Column():
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img_out = gr.Image(type="numpy")
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vid_out = gr.Video()
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status = gr.Textbox()
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b1.click(run_image, [img_in,conf], [img_out,status])
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b2.click(run_video, [vid_in,conf], [vid_out,status])
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if __name__=="__main__":
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demo.launch()
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# app.py
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import numpy as np
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np.int = int # PaddleOCRβnin eski np.int kullanΔ±m yamasΔ±
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import cv2, json, tempfile, re, gradio as gr
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from ultralytics import YOLO
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from paddleocr import PaddleOCR
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# βββ 1) Load models βββββββββββββββββββββββββββββββββββββββββββββββ
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yolo = YOLO("models/best.pt")
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ocr = PaddleOCR(
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det=False, # OCRβnin kendi tespitini kapatΔ±yoruz
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rec=True, # sadece okuma
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rec_model_dir="models/ocr_model",
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rec_image_shape="3,32,128", # inference.yml ile birebir aynΔ±
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cls=True, # aΓ§Δ± sΔ±nΔ±flandΔ±rΔ±cΔ±sΔ±
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use_angle_cls=True, # v2.x flag
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use_space_char=True # boΕluk okumasΔ±na izin
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)
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# βββ 2) Plaka formatlayΔ±cΔ± βββββββββββββββββββββββββββββββββββββββββ
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def format_turkish_plate(s: str) -> str:
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s = re.sub(r'[^A-Z0-9]', '', s.upper())
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m = re.match(r'^(\d{2})([A-Z]{1,3})(\d{2,4})$', s)
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return f"{m.group(1)} {m.group(2)} {m.group(3)}" if m else "Unknown"
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# βββ 3) GΓΆrΓΌntΓΌ pipeline ββββββββββββββββββββββββββββββββββββββββββββ
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def run_image(img, conf=0.25):
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bgr = cv2.cvtColor(img, cv2.COLOR_RGB2BGR)
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res = yolo(bgr, conf=conf)[0]
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out = bgr.copy()
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for box, _ in zip(res.boxes.xyxy.cpu().numpy(),
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res.boxes.conf.cpu().numpy()):
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x1,y1,x2,y2 = box.astype(int)
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crop = out[y1:y2, x1:x2]
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if crop.size == 0:
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continue
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plate_img = cv2.resize(crop, (128, 32))
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# burada dahili tespiti kapattΔ±k
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try:
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recs = ocr.ocr(plate_img, det=False, cls=True)
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except Exception:
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recs = []
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if recs and recs[0]:
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raw_text, ocr_score = recs[0][1][0], recs[0][1][1]
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else:
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raw_text, ocr_score = "", 0.0
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plate = format_turkish_plate(raw_text)
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label = f"{plate} ({ocr_score:.2f})"
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cv2.rectangle(out, (x1,y1),(x2,y2), (0,255,0), 2)
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cv2.putText(out, label, (x1, y1-5),
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cv2.FONT_HERSHEY_SIMPLEX, 0.6, (0,255,0), 2)
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return cv2.cvtColor(out, cv2.COLOR_BGR2RGB), f"{len(res.boxes)} plate(s) detected"
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# βββ 4) Video pipeline βββββββββββββββββββββββββββββββββββββββββββββ
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def run_video(video_file, conf=0.25):
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cap = cv2.VideoCapture(video_file)
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fps = cap.get(cv2.CAP_PROP_FPS)
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w = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH))
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h = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))
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outfp = tempfile.NamedTemporaryFile(suffix=".mp4", delete=False).name
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writer = cv2.VideoWriter(outfp, cv2.VideoWriter_fourcc(*"mp4v"), fps, (w,h))
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records = []
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idx = 0
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while True:
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ret, frame = cap.read()
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if not ret: break
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idx += 1; t = idx/fps
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res = yolo(frame, conf=conf)[0]
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for (x1,y1,x2,y2) in res.boxes.xyxy.cpu().numpy().astype(int):
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crop = frame[y1:y2, x1:x2]
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if crop.size == 0:
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continue
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plate_img = cv2.resize(crop, (128,32))
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try:
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recs = ocr.ocr(plate_img, det=False, cls=True)
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except Exception:
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recs = []
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if recs and recs[0]:
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raw_text, ocr_score = recs[0][1][0], recs[0][1][1]
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else:
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raw_text, ocr_score = "", 0.0
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plate = format_turkish_plate(raw_text)
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if plate != "Unknown":
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records.append({
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"time_s": round(t,2),
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"plate": plate,
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"conf": round(ocr_score,3)
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})
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cv2.rectangle(frame, (x1,y1),(x2,y2), (0,255,0), 2)
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cv2.putText(frame, plate, (x1,y1-5),
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cap.release(); writer.release()
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with open("output.json","w") as f:
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json.dump(records, f, indent=2)
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return outfp, "Done"
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# βββ 5) Gradio UI ββββββββββββββββββββββββββββββββββββββββββββββββββ
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with gr.Blocks() as demo:
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gr.Markdown("## π License Plate Detection + Recognition")
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with gr.Row():
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with gr.Column():
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img_in = gr.Image(type="numpy", label="Upload Image")
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vid_in = gr.File(label="Upload Video (.mp4)")
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conf = gr.Slider(0,1,0.25,0.01, label="YOLO Confidence")
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b1 = gr.Button("Run Image")
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b2 = gr.Button("Run Video")
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with gr.Column():
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img_out = gr.Image(type="numpy", label="Annotated Image")
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vid_out = gr.Video(label="Annotated Video")
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status = gr.Textbox(label="Status / JSON Path")
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b1.click(run_image, [img_in,conf], [img_out,status])
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b2.click(run_video, [vid_in,conf], [vid_out,status])
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if __name__ == "__main__":
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demo.launch()
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