You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
96 lines
3.4 KiB
C
96 lines
3.4 KiB
C
3 weeks ago
|
/*=========================================================================
|
||
|
|
|
||
|
|
Program: Visualization Toolkit
|
||
|
|
Module: vtkSubPixelPositionEdgels.h
|
||
|
|
|
||
|
|
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
|
||
|
|
All rights reserved.
|
||
|
|
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
|
||
|
|
|
||
|
|
This software is distributed WITHOUT ANY WARRANTY; without even
|
||
|
|
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
||
|
|
PURPOSE. See the above copyright notice for more information.
|
||
|
|
|
||
|
|
=========================================================================*/
|
||
|
|
/**
|
||
|
|
* @class vtkSubPixelPositionEdgels
|
||
|
|
* @brief adjust edgel locations based on gradients.
|
||
|
|
*
|
||
|
|
* vtkSubPixelPositionEdgels is a filter that takes a series of linked
|
||
|
|
* edgels (digital curves) and gradient maps as input. It then adjusts
|
||
|
|
* the edgel locations based on the gradient data. Specifically, the
|
||
|
|
* algorithm first determines the neighboring gradient magnitudes of
|
||
|
|
* an edgel using simple interpolation of its neighbors. It then fits
|
||
|
|
* the following three data points: negative gradient direction
|
||
|
|
* gradient magnitude, edgel gradient magnitude and positive gradient
|
||
|
|
* direction gradient magnitude to a quadratic function. It then
|
||
|
|
* solves this quadratic to find the maximum gradient location along
|
||
|
|
* the gradient orientation. It then modifies the edgels location
|
||
|
|
* along the gradient orientation to the calculated maximum
|
||
|
|
* location. This algorithm does not adjust an edgel in the direction
|
||
|
|
* orthogonal to its gradient vector.
|
||
|
|
*
|
||
|
|
* @sa
|
||
|
|
* vtkImageData vtkImageGradient vtkLinkEdgels
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef vtkSubPixelPositionEdgels_h
|
||
|
|
#define vtkSubPixelPositionEdgels_h
|
||
|
|
|
||
|
|
#include "vtkFiltersGeneralModule.h" // For export macro
|
||
|
|
#include "vtkPolyDataAlgorithm.h"
|
||
|
|
|
||
|
|
class vtkStructuredPoints;
|
||
|
|
class vtkDataArray;
|
||
|
|
|
||
|
|
class VTKFILTERSGENERAL_EXPORT vtkSubPixelPositionEdgels : public vtkPolyDataAlgorithm
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
static vtkSubPixelPositionEdgels *New();
|
||
|
|
vtkTypeMacro(vtkSubPixelPositionEdgels,vtkPolyDataAlgorithm);
|
||
|
|
void PrintSelf(ostream& os, vtkIndent indent) VTK_OVERRIDE;
|
||
|
|
|
||
|
|
//@{
|
||
|
|
/**
|
||
|
|
* Set/Get the gradient data for doing the position adjustments.
|
||
|
|
*/
|
||
|
|
void SetGradMapsData(vtkStructuredPoints *gm);
|
||
|
|
vtkStructuredPoints *GetGradMaps();
|
||
|
|
//@}
|
||
|
|
|
||
|
|
//@{
|
||
|
|
/**
|
||
|
|
* These methods can make the positioning look for a target scalar value
|
||
|
|
* instead of looking for a maximum.
|
||
|
|
*/
|
||
|
|
vtkSetMacro(TargetFlag, int);
|
||
|
|
vtkGetMacro(TargetFlag, int);
|
||
|
|
vtkBooleanMacro(TargetFlag, int);
|
||
|
|
vtkSetMacro(TargetValue, double);
|
||
|
|
vtkGetMacro(TargetValue, double);
|
||
|
|
//@}
|
||
|
|
|
||
|
|
protected:
|
||
|
|
vtkSubPixelPositionEdgels();
|
||
|
|
~vtkSubPixelPositionEdgels() VTK_OVERRIDE;
|
||
|
|
|
||
|
|
// Usual data generation method
|
||
|
|
int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *) VTK_OVERRIDE;
|
||
|
|
int FillInputPortInformation(int port, vtkInformation *info) VTK_OVERRIDE;
|
||
|
|
|
||
|
|
void Move(int xdim, int ydim, int zdim, int x, int y,
|
||
|
|
float *img, vtkDataArray *inVecs,
|
||
|
|
double *result, int z, double *aspect, double *resultNormal);
|
||
|
|
void Move(int xdim, int ydim, int zdim, int x, int y,
|
||
|
|
double *img, vtkDataArray *inVecs,
|
||
|
|
double *result, int z, double *aspect, double *resultNormal);
|
||
|
|
// extension for target instead of maximum
|
||
|
|
int TargetFlag;
|
||
|
|
double TargetValue;
|
||
|
|
private:
|
||
|
|
vtkSubPixelPositionEdgels(const vtkSubPixelPositionEdgels&) VTK_DELETE_FUNCTION;
|
||
|
|
void operator=(const vtkSubPixelPositionEdgels&) VTK_DELETE_FUNCTION;
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif
|