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"""
Run a rest API exposing the yolov5s object detection model
"""
import argparse
import io
from PIL import Image
import torch
from flask import Flask, request
app = Flask(__name__)
DETECTION_URL = "/v1/object-detection/yolov5s"
@app.route(DETECTION_URL, methods=["POST"])
def predict():
if not request.method == "POST":
return
if request.files.get("image"):
image_file = request.files["image"]
image_bytes = image_file.read()
img = Image.open(io.BytesIO(image_bytes))
results = model(img, size=640)
data = results.pandas().xyxy[0].to_json(orient="records")
return data
if __name__ == "__main__":
parser = argparse.ArgumentParser(description="Flask api exposing yolov5 model")
parser.add_argument("--port", default=5000, type=int, help="port number")
args = parser.parse_args()
model = torch.hub.load(
"ultralytics/yolov5", "yolov5s", pretrained=True, force_reload=True
).autoshape() # force_reload = recache latest code
model.eval()
app.run(host="0.0.0.0", port=args.port) # debug=True causes Restarting with stat
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