1 /*=========================================================================
2 
3   Program:   Visualization Toolkit
4   Module:    vtkImageRGBToHSI.h
5 
6   Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
7   All rights reserved.
8   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
9 
10      This software is distributed WITHOUT ANY WARRANTY; without even
11      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
12      PURPOSE.  See the above copyright notice for more information.
13 
14 =========================================================================*/
15 // .NAME vtkImageRGBToHSI - Converts RGB components to HSI.
16 // .SECTION Description
17 // For each pixel with red, blue, and green components this
18 // filter output the color coded as hue, saturation and intensity.
19 // Output type must be the same as input type.
20 
21 #ifndef vtkImageRGBToHSI_h
22 #define vtkImageRGBToHSI_h
23 
24 #include "vtkImagingColorModule.h" // For export macro
25 #include "vtkThreadedImageAlgorithm.h"
26 
27 class VTKIMAGINGCOLOR_EXPORT vtkImageRGBToHSI : public vtkThreadedImageAlgorithm
28 {
29 public:
30   static vtkImageRGBToHSI *New();
31   vtkTypeMacro(vtkImageRGBToHSI,vtkThreadedImageAlgorithm);
32   void PrintSelf(ostream& os, vtkIndent indent);
33 
34   // Description:
35   // Hue is an angle. Maximum specifies when it maps back to 0.  HueMaximum
36   // defaults to 255 instead of 2PI, because unsigned char is expected as
37   // input.  Maximum also specifies the maximum of the Saturation.
38   vtkSetMacro(Maximum,double);
39   vtkGetMacro(Maximum,double);
40 
41 protected:
42   vtkImageRGBToHSI();
~vtkImageRGBToHSI()43   ~vtkImageRGBToHSI() {}
44 
45   double Maximum;
46 
47   void ThreadedExecute (vtkImageData *inData, vtkImageData *outData,
48                        int ext[6], int id);
49 
50 private:
51   vtkImageRGBToHSI(const vtkImageRGBToHSI&);  // Not implemented.
52   void operator=(const vtkImageRGBToHSI&);  // Not implemented.
53 };
54 
55 #endif
56 
57 
58 
59