Minor change

app.py

@@ -3,6 +3,7 @@ import numpy as np
 import gradio as gr
 from PIL import Image
 from models.common import DetectMultiBackend
+from utils.augmentations import letterbox
 from utils.plots import Annotator, colors
 from utils.torch_utils import select_device, smart_inference_mode
 from utils.general import check_img_size, Profile, non_max_suppression, scale_boxes
@@ -45,8 +46,9 @@ def inference(input_img, conf_thres, iou_thres):
     seen, windows, dt = 0, [], (Profile(), Profile(), Profile())
 
     with dt[0]:
-        im = torch.from_numpy(input_img).to(model.device)
+        im = letterbox(input_img, imgsz, stride=32, auto=True)[0]  # padded resize
         im = im.transpose((2, 0, 1))[::-1]
+        im = torch.from_numpy(input_img).to(model.device)
         im = im.half() if model.fp16 else im.float()  # uint8 to fp16/32
         im /= 255  # 0 - 255 to 0.0 - 1.0
         if len(im.shape) == 3: