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/*=========================================================================
Program: Visualization Toolkit
Module: vtkImageMask.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.
=========================================================================*/
// .NAME vtkImageMask - Combines a mask and an image.
// .SECTION Description
// vtkImageMask combines a mask with an image. Non zero mask
// implies the output pixel will be the same as the image.
// If a mask pixel is zero, then the output pixel
// is set to "MaskedValue". The filter also has the option to pass
// the mask through a boolean not operation before processing the image.
// This reverses the passed and replaced pixels.
// The two inputs should have the same "WholeExtent".
// The mask input should be unsigned char, and the image scalar type
// is the same as the output scalar type.
#ifndef __vtkImageMask_h
#define __vtkImageMask_h
#include "vtkImagingCoreModule.h" // For export macro
#include "vtkThreadedImageAlgorithm.h"
class VTKIMAGINGCORE_EXPORT vtkImageMask : public vtkThreadedImageAlgorithm
{
public:
static vtkImageMask *New();
vtkTypeMacro(vtkImageMask,vtkThreadedImageAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// SetGet the value of the output pixel replaced by mask.
void SetMaskedOutputValue(int num, double *v);
void SetMaskedOutputValue(double v) {this->SetMaskedOutputValue(1, &v);}
void SetMaskedOutputValue(double v1, double v2)
{double v[2]; v[0]=v1; v[1]=v2; this->SetMaskedOutputValue(2, v);}
void SetMaskedOutputValue(double v1, double v2, double v3)
{double v[3]; v[0]=v1; v[1]=v2; v[2]=v3; this->SetMaskedOutputValue(3, v);}
double *GetMaskedOutputValue() {return this->MaskedOutputValue;}
int GetMaskedOutputValueLength() {return this->MaskedOutputValueLength;}
// Description:
// Set/Get the alpha blending value for the mask
// The input image is assumed to be at alpha = 1.0
// and the mask image uses this alpha to blend using
// an over operator.
vtkSetClampMacro ( MaskAlpha, double, 0.0, 1.0 );
vtkGetMacro ( MaskAlpha, double );
// Description:
// Set the input to be masked.
void SetImageInputData(vtkImageData *in);
// Description:
// Set the mask to be used.
void SetMaskInputData(vtkImageData *in);
// Description:
// When Not Mask is on, the mask is passed through a boolean not
// before it is used to mask the image. The effect is to pass the
// pixels where the input mask is zero, and replace the pixels
// where the input value is non zero.
vtkSetMacro(NotMask,int);
vtkGetMacro(NotMask,int);
vtkBooleanMacro(NotMask, int);
// Description:
// Set the two inputs to this filter
virtual void SetInput1Data(vtkDataObject *in) { this->SetInputData(0,in); }
virtual void SetInput2Data(vtkDataObject *in) { this->SetInputData(1,in); }
protected:
vtkImageMask();
~vtkImageMask();
double *MaskedOutputValue;
int MaskedOutputValueLength;
int NotMask;
double MaskAlpha;
virtual int RequestInformation (vtkInformation *,
vtkInformationVector **,
vtkInformationVector *);
virtual void ThreadedRequestData(vtkInformation *request,
vtkInformationVector **inputVector,
vtkInformationVector *outputVector,
vtkImageData ***inData,
vtkImageData **outData,
int extent[6], int threadId);
private:
vtkImageMask(const vtkImageMask&); // Not implemented.
void operator=(const vtkImageMask&); // Not implemented.
};
#endif
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