1 files changed, 12 insertions, 0 deletions
diff --git a/r_facelib/detection/yolov5face/utils/autoanchor.py b/r_facelib/detection/yolov5face/utils/autoanchor.py
new file mode 100644
index 0000000..cb0de89
--- /dev/null
+++ b/r_facelib/detection/yolov5face/utils/autoanchor.py
@@ -0,0 +1,12 @@
+# Auto-anchor utils
+
+
+def check_anchor_order(m):
+    # Check anchor order against stride order for YOLOv5 Detect() module m, and correct if necessary
+    a = m.anchor_grid.prod(-1).view(-1)  # anchor area
+    da = a[-1] - a[0]  # delta a
+    ds = m.stride[-1] - m.stride[0]  # delta s
+    if da.sign() != ds.sign():  # same order
+        print("Reversing anchor order")
+        m.anchors[:] = m.anchors.flip(0)
+        m.anchor_grid[:] = m.anchor_grid.flip(0)