vendor: OpenCV 5.0.0 snapshot at 755e50675d97db9b7d449d8bd6b09888646f6c6e

modules/fastcv/src/thresh_dsp.cpp

@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2025 Qualcomm Innovation Center, Inc. All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0
+*/
+
+#include "precomp.hpp"
+
+namespace cv {
+namespace fastcv {
+namespace dsp {
+
+    void thresholdOtsu(InputArray _src, OutputArray _dst, bool type)
+    {
+        CV_Assert(
+            !_src.empty() && 
+            _src.type() == CV_8UC1 && 
+            IS_FASTCV_ALLOCATED(_src.getMat())
+        );
+
+        CV_Assert((_src.step() * _src.rows()) > MIN_REMOTE_BUF_SIZE);
+        CV_Assert(_src.cols() % 8 == 0);
+        CV_Assert(_src.step() % 8 == 0);
+
+        Mat src = _src.getMat();
+        CV_Assert(((uintptr_t)src.data & 0x7) == 0);
+
+        _dst.create(_src.size(), CV_8UC1);
+        CV_Assert(_dst.step() % 8 == 0);
+        CV_Assert(_dst.cols() % 8 == 0);
+        Mat dst = _dst.getMat();
+
+        // Check if dst is allocated by the QcAllocator
+        CV_Assert(IS_FASTCV_ALLOCATED(dst));
+        CV_Assert(((uintptr_t)dst.data & 0x7) == 0);
+        
+        if (src.data == dst.data) {
+            CV_Assert(src.step == dst.step);
+        }
+
+        // Check DSP initialization status and initialize if needed
+        FASTCV_CHECK_DSP_INIT();
+
+        fcvThreshType threshType;
+
+        if (type)
+            threshType = FCV_THRESH_BINARY_INV;
+        else
+            threshType = FCV_THRESH_BINARY;
+
+        fcvFilterThresholdOtsuu8Q(src.data, src.cols, src.rows, src.step, dst.data, dst.step, threshType);
+    }
+
+} // dsp::
+} // fastcv::
+} // cv::