PatchFeatureEntry.cpp
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36 // Filename: PatchFeatureEntry.cpp
37 // Author: Pedram Azad
38 // Date: 24.09.2008
39 // ****************************************************************************
40 
41 
42 // ****************************************************************************
43 // Includes
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45 
46 #include <new> // for explicitly using correct new/delete operators on VC DSPs
47 
48 #include "PatchFeatureEntry.h"
49 
50 #include "Image/ByteImage.h"
51 
52 
53 
54 bool CPatchFeatureEntry::ExtractFeature(const CByteImage *pImage, int nWindowSize, float x, float y)
55 {
56  const int width = pImage->width;
57  const int height = pImage->height;
58 
59  if (x < nWindowSize / 2 || x >= width - nWindowSize / 2 || y < nWindowSize / 2 || y >= height - nWindowSize / 2)
60  return false;
61 
62  // construct new feature entry
63  Math2d::SetVec(point, x, y);
64  m_nSize = nWindowSize * nWindowSize;
65  if (m_pFeature) delete [] m_pFeature;
66  m_pFeature = new float[m_nSize];
67 
68  // extract the feature
69  const int diff = width - nWindowSize;
70  const int offset = (int(y) - nWindowSize / 2) * width + (int(x) - nWindowSize / 2);
71  const unsigned char *input = pImage->pixels;
72 
73  // determine normalized patch in left image
74  for (int i = 0, offset2 = offset, offset3 = 0; i < nWindowSize; i++, offset2 += diff)
75  for (int j = 0; j < nWindowSize; j++, offset2++, offset3++)
76  {
77  m_pFeature[offset3] = input[offset2];
78  }
79 
80  return true;
81 }
int width
The width of the image in pixels.
Definition: ByteImage.h:257
Data structure for the representation of 8-bit grayscale images and 24-bit RGB (or HSV) color images ...
Definition: ByteImage.h:80
GLintptr offset
Definition: glext.h:3389
unsigned char * pixels
The pointer to the the pixels.
Definition: ByteImage.h:283
GLenum GLint x
Definition: glext.h:3125
bool ExtractFeature(const CByteImage *pImage, int nWindowSize, float x, float y)
int height
The height of the image in pixels.
Definition: ByteImage.h:264
GLenum GLsizei width
Definition: glext.h:3122
GLenum GLsizei GLsizei height
Definition: glext.h:3132
float * m_pFeature
Definition: FeatureEntry.h:264
GLenum GLenum GLenum input
Definition: glext.h:5307
GLenum GLint GLint y
Definition: glext.h:3125
void SetVec(Vec2d &vec, float x, float y)
Definition: Math2d.cpp:68


asr_ivt
Author(s): Allgeyer Tobias, Hutmacher Robin, Kleinert Daniel, Meißner Pascal, Scholz Jonas, Stöckle Patrick
autogenerated on Mon Dec 2 2019 03:47:28