Added CvInvoke.HasNonZero

iorileslie · Jul 19, 2023 · 3ddc496 · 3ddc496
1 parent caa1d47
commit 3ddc496
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Showing 3 changed files with 20 additions and 0 deletions.
diff --git a/Emgu.CV.Extern/core/core_c.cpp b/Emgu.CV.Extern/core/core_c.cpp
@@ -269,6 +269,10 @@ void cveMultiply(cv::_InputArray* src1, cv::_InputArray* src2, cv::_OutputArray*
 {
  cv::multiply(*src1, *src2, *dst, scale, dtype);
 }
+bool cveHasNonZero(cv::_InputArray* src)
+{
+ return cv::hasNonZero(*src);
+}
 int cveCountNonZero(cv::_InputArray* src)
 {
  return cv::countNonZero(*src);

diff --git a/Emgu.CV.Extern/core/core_c_extra.h b/Emgu.CV.Extern/core/core_c_extra.h
@@ -85,6 +85,7 @@ CVAPI(void) cveAdd(cv::_InputArray* src1, cv::_InputArray* src2, cv::_OutputArra
 CVAPI(void) cveSubtract(cv::_InputArray* src1, cv::_InputArray* src2, cv::_OutputArray* dst, cv::_InputArray* mask, int dtype);
 CVAPI(void) cveDivide(cv::_InputArray* src1, cv::_InputArray* src2, cv::_OutputArray* dst, double scale, int dtype);
 CVAPI(void) cveMultiply(cv::_InputArray* src1, cv::_InputArray* src2, cv::_OutputArray* dst, double scale, int dtype);
+CVAPI(bool) cveHasNonZero(cv::_InputArray* src);
 CVAPI(int) cveCountNonZero(cv::_InputArray* src);
 CVAPI(void) cveFindNonZero(cv::_InputArray* src, cv::_OutputArray* idx);
 CVAPI(void) cveMin(cv::_InputArray* src1, cv::_InputArray* src2, cv::_OutputArray* dst);

diff --git a/Emgu.CV/PInvoke/CvInvokeCore.cs b/Emgu.CV/PInvoke/CvInvokeCore.cs
@@ -408,6 +408,21 @@ public static void Max(IInputArray src1, IInputArray src2, IOutputArray dst)
  [DllImport(ExternLibrary, CallingConvention = CvInvoke.CvCallingConvention)]
  private static extern void cveMax(IntPtr src1, IntPtr src2, IntPtr dst);
 
+ /// <summary>
+ /// Checks for the presence of at least one non-zero array element.
+ /// </summary>
+ /// <param name="arr">Single-channel array.</param>
+ /// <returns>Whether there are non-zero elements in src</returns>
+ public static bool HasNonZero(IInputArray arr)
+ {
+ using (InputArray iaArr = arr.GetInputArray())
+ return cveHasNonZero(iaArr);
+ }
+
+ [DllImport(ExternLibrary, CallingConvention = CvInvoke.CvCallingConvention)]
+ [return: MarshalAs(CvInvoke.BoolMarshalType)]
+ private static extern bool cveHasNonZero(IntPtr arr);
+
  /// <summary>
  /// Returns the number of non-zero elements in arr:
  /// result = sumI arr(I)!=0