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added mean filter

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This commit is contained in:
James E McClure 2020-07-22 11:57:51 -04:00
parent 4fd74a78a7
commit a1f3375911
2 changed files with 38 additions and 1 deletions
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31
analysis/filters.cpp
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@ -2,6 +2,37 @@
#include "math.h" #include "math.h"
#include "ProfilerApp.h" #include "ProfilerApp.h"
void Mean3D( const Array<float> &Input, Array<float> &Output )
{
PROFILE_START("Mean3D");
// Perform a 3D Mean filter on Input array
int i,j,k,ii,jj,kk;
int imin,jmin,kmin,imax,jmax,kmax;
float *List;
List=new float[27];
int Nx = int(Input.size(0));
int Ny = int(Input.size(1));
int Nz = int(Input.size(2));
for (k=1; k<Nz-1; k++){
for (j=1; j<Ny-1; j++){
for (i=1; i<Nx-1; i++){
double MeanValue = Input(i,j,k);
// next neighbors
MeanValue += Input(i+1,j,k)+Input(i,j+1,k)+Input(i,j,k+1)+Input(i-1,j,k)+Input(i,j-1,k)+Input(i,j,k-1);
MeanValue += Input(i+1,j+1,k)+Input(i-1,j+1,k)+Input(i+1,j-1,k)+Input(i-1,j-1,k);
MeanValue += Input(i+1,j,k+1)+Input(i-1,j,k+1)+Input(i+1,j,k-1)+Input(i-1,j,k-1);
MeanValue += Input(i,j+1,k+1)+Input(i,j-1,k+1)+Input(i,j+1,k-1)+Input(i,j-1,k-1);
MeanValue += Input(i+1,j+1,k+1)+Input(i-1,j+1,k+1)+Input(i+1,j-1,k+1)+Input(i-1,j-1,k+1);
MeanValue += Input(i+1,j+1,k-1)+Input(i-1,j+1,k-1)+Input(i+1,j-1,k-1)+Input(i-1,j-1,k-1);
Output(i,j,k) = MeanValue/27.0;
}
}
}
PROFILE_STOP("Mean3D");
}
void Med3D( const Array<float> &Input, Array<float> &Output ) void Med3D( const Array<float> &Input, Array<float> &Output )
{ {

8
analysis/filters.h
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@ -4,6 +4,13 @@
#include "common/Array.h" #include "common/Array.h"
/*!
* @brief Filter image
* @details This routine performs a mean filter
* @param[in] Input Input image
* @param[out] Output Output image
*/
void Mean3D( const Array<float> &Input, Array<float> &Output )
/*! /*!
* @brief Filter image * @brief Filter image
@ -13,7 +20,6 @@
*/ */
void Med3D( const Array<float> &Input, Array<float> &Output ); void Med3D( const Array<float> &Input, Array<float> &Output );
/*! /*!
* @brief Filter image * @brief Filter image
* @details This routine performs a non-linear local means filter * @details This routine performs a non-linear local means filter