From d221ace5a333acfcbfb7c35fd286ba77b004c12d Mon Sep 17 00:00:00 2001
From: Clea Parcerisas <cleaparcerisas@gmail.com>
Date: Thu, 24 Aug 2023 10:51:30 +0200
Subject: [PATCH] changed the imgsize on warmup to meet the grayscale for
 prediction

---
 ultralytics/nn/autobackend.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ultralytics/nn/autobackend.py b/ultralytics/nn/autobackend.py
index 93de16b..69315d5 100644
--- a/ultralytics/nn/autobackend.py
+++ b/ultralytics/nn/autobackend.py
@@ -445,7 +445,7 @@ class AutoBackend(nn.Module):
          """
         return torch.tensor(x).to(self.device) if isinstance(x, np.ndarray) else x
 
-    def warmup(self, imgsz=(1, 3, 640, 640)):
+    def warmup(self, imgsz=(1, 1, 640, 640)):
         """
         Warm up the model by running one forward pass with a dummy input.