From 858d88101e4acd30d92bf5f966164f70839964b4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=BC=B5=E5=B0=8F=E5=87=A1?=
 <2672931+whyb@users.noreply.github.com>
Date: Tue, 18 Nov 2025 18:44:14 +0800
Subject: [PATCH 1/2] Add copyMakeBorder function in simpleocv

---
 src/simpleocv.cpp | 24 ++++++++++++++++++++++++
 src/simpleocv.h   | 13 +++++++++++++
 2 files changed, 37 insertions(+)

diff --git a/src/simpleocv.cpp b/src/simpleocv.cpp
index f2a68f6cb525..9220d8ddc100 100644
--- a/src/simpleocv.cpp
+++ b/src/simpleocv.cpp
@@ -339,6 +339,30 @@ void resize(const Mat& src, Mat& dst, const Size& size, float sw, float sh, int
 
     dst = tmp;
 }
+
+void copyMakeBorder(const Mat& src, Mat& dst, int top, int bottom, int left, int right, BorderType borderType, const Scalar& value = Scalar())
+{
+    ncnn::BorderType ncnn_border_type;
+    switch (borderType)
+    {
+    case BORDER_CONSTANT:
+        ncnn_border_type = ncnn::BORDER_CONSTANT;
+        break;
+    case BORDER_REPLICATE:
+        ncnn_border_type = ncnn::BORDER_REPLICATE;
+        break;
+    case BORDER_REFLECT:
+        ncnn_border_type = ncnn::BORDER_REFLECT;
+        break;
+    case BORDER_TRANSPARENT:
+        ncnn_border_type = ncnn::BORDER_TRANSPARENT;
+        break;
+    default:
+        ncnn_border_type = ncnn::BORDER_CONSTANT;
+        break;
+    }
+    ncnn::copy_make_border(src, dst, top, bottom, left, right, ncnn_border_type, value[0]);
+}
 #endif // NCNN_PIXEL
 
 #if NCNN_PIXEL_DRAWING
diff --git a/src/simpleocv.h b/src/simpleocv.h
index 650e5203de61..155f0782f773 100644
--- a/src/simpleocv.h
+++ b/src/simpleocv.h
@@ -452,6 +452,19 @@ NCNN_EXPORT int waitKey(int delay = 0);
 
 #if NCNN_PIXEL
 NCNN_EXPORT void resize(const Mat& src, Mat& dst, const Size& size, float sw = 0.f, float sh = 0.f, int flags = 0);
+enum BorderType
+{
+    BORDER_CONSTANT = 0,
+    BORDER_REPLICATE = 1,
+    BORDER_REFLECT = 2,
+    BORDER_WRAP = 3,
+    BORDER_REFLECT_101 = 4,
+    BORDER_TRANSPARENT = 5,
+    BORDER_REFLECT101 = BORDER_REFLECT_101,
+    BORDER_DEFAULT = BORDER_REFLECT_101,
+    BORDER_ISOLATED = 16 
+};
+NCNN_EXPORT void copyMakeBorder(const Mat& src, Mat& dst, int top, int bottom, int left, int right, BorderType borderType, const Scalar& value = Scalar());
 #endif // NCNN_PIXEL
 
 #if NCNN_PIXEL_DRAWING

From 05392226021c74628c589e7581e1ad40cda398a5 Mon Sep 17 00:00:00 2001
From: whyb <2672931+whyb@users.noreply.github.com>
Date: Tue, 18 Nov 2025 10:49:24 +0000
Subject: [PATCH 2/2] apply code-format changes

---
 src/simpleocv.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/simpleocv.h b/src/simpleocv.h
index 155f0782f773..4cc1358fd4e5 100644
--- a/src/simpleocv.h
+++ b/src/simpleocv.h
@@ -462,7 +462,7 @@ enum BorderType
     BORDER_TRANSPARENT = 5,
     BORDER_REFLECT101 = BORDER_REFLECT_101,
     BORDER_DEFAULT = BORDER_REFLECT_101,
-    BORDER_ISOLATED = 16 
+    BORDER_ISOLATED = 16
 };
 NCNN_EXPORT void copyMakeBorder(const Mat& src, Mat& dst, int top, int bottom, int left, int right, BorderType borderType, const Scalar& value = Scalar());
 #endif // NCNN_PIXEL