switched to Input/Output Array in gpu::compare

modules/gpuarithm/include/opencv2/gpuarithm.hpp

@@ -92,6 +92,9 @@ CV_EXPORTS void log(InputArray src, OutputArray dst, Stream& stream = Stream::Nu
 //!    (dst(i,j) = pow(fabs(src(i,j)), power), otherwise
 CV_EXPORTS void pow(InputArray src, double power, OutputArray dst, Stream& stream = Stream::Null());
 
+//! compares elements of two arrays (dst = src1 <cmpop> src2)
+CV_EXPORTS void compare(InputArray src1, InputArray src2, OutputArray dst, int cmpop, Stream& stream = Stream::Null());
+
 //! computes the weighted sum of two arrays (dst = alpha*src1 + beta*src2 + gamma)
 CV_EXPORTS void addWeighted(const GpuMat& src1, double alpha, const GpuMat& src2, double beta, double gamma, GpuMat& dst,
                             int dtype = -1, Stream& stream = Stream::Null());
@@ -102,10 +105,6 @@ static inline void scaleAdd(const GpuMat& src1, double alpha, const GpuMat& src2
     addWeighted(src1, alpha, src2, 1.0, 0.0, dst, -1, stream);
 }
 
-//! compares elements of two arrays (c = a <cmpop> b)
-CV_EXPORTS void compare(const GpuMat& a, const GpuMat& b, GpuMat& c, int cmpop, Stream& stream = Stream::Null());
-CV_EXPORTS void compare(const GpuMat& a, Scalar sc, GpuMat& c, int cmpop, Stream& stream = Stream::Null());
-
 //! performs per-elements bit-wise inversion
 CV_EXPORTS void bitwise_not(const GpuMat& src, GpuMat& dst, const GpuMat& mask=GpuMat(), Stream& stream = Stream::Null());