Fawkes API  Fawkes Development Version
gauss.cpp
1 
2 /***************************************************************************
3  * gauss.cpp - Implementation of a Gauss filter
4  *
5  * Created: Thu May 12 09:33:55 2005
6  * Copyright 2005-2012 Tim Niemueller [www.niemueller.de]
7  ****************************************************************************/
8 
9 /* This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version. A runtime exception applies to
13  * this software (see LICENSE.GPL_WRE file mentioned below for details).
14  *
15  * This program is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18  * GNU Library General Public License for more details.
19  *
20  * Read the full text in the LICENSE.GPL_WRE file in the doc directory.
21  */
22 
23 #include <fvfilters/gauss.h>
24 
25 #include <cstddef>
26 
27 #ifdef HAVE_IPP
28 # include <ippi.h>
29 #elif defined(HAVE_OPENCV)
30 # if CV_MAJOR_VERSION < 2 || (CV_MAJOR_VERSION == 2 && CV_MINOR_VERSION < 4)
31 # include <opencv/cv.h>
32 # endif
33 # include <opencv/cv.hpp>
34 #else
35 # error "Neither IPP nor OpenCV available"
36 #endif
37 
38 namespace firevision {
39 #if 0 /* just to make Emacs auto-indent happy */
40 }
41 #endif
42 
43 /** @class FilterGauss <fvfilters/gauss.h>
44  * Gaussian filter.
45  * Applies Gaussian linear filter to image (blur effect).
46  */
47 
48 /** Constructor. */
50  : Filter("FilterGauss")
51 {
52 }
53 
54 
55 void
57 {
58 #if defined(HAVE_IPP)
59  IppiSize size;
60  size.width = src_roi[0]->width;
61  size.height = src_roi[0]->height;
62 
63  /* IppStatus status = */ ippiFilterGauss_8u_C1R( src[0] + (src_roi[0]->start.y * src_roi[0]->line_step) + (src_roi[0]->start.x * src_roi[0]->pixel_step), src_roi[0]->line_step,
65  size,
66  ippMskSize5x5 );
67 
68  /*
69  cout << "FilterGauss: ippiFilterGauss exit code: " << flush;
70  switch (status) {
71  case ippStsNoErr:
72  cout << "ippStsNoErr";
73  break;
74  case ippStsNullPtrErr:
75  cout << "ippStsNullPtrErr";
76  break;
77  case ippStsSizeErr:
78  cout << "ippStsSizeErr";
79  break;
80  case ippStsStepErr:
81  cout << "ippStsStepErr";
82  break;
83  case ippStsMaskSizeErr:
84  cout << "ippStsMaskSizeErr";
85  break;
86  default:
87  cout << "Unknown status";
88  }
89  cout << endl;
90  */
91 
92 #elif defined(HAVE_OPENCV)
93  cv::Mat srcm(src_roi[0]->height, src_roi[0]->width, CV_8UC1,
94  src[0] +
95  (src_roi[0]->start.y * src_roi[0]->line_step) +
96  (src_roi[0]->start.x * src_roi[0]->pixel_step),
97  src_roi[0]->line_step);
98 
99  if (dst == NULL) { dst = src[0]; dst_roi = src_roi[0]; }
100 
101  cv::Mat dstm(dst_roi->height, dst_roi->width, CV_8UC1,
102  dst +
105  dst_roi->line_step);
106 
107  cv::GaussianBlur(srcm, dstm, /* ksize */ cv::Size(5, 5), /* sigma */ 1.0);
108 
109 #endif
110 
111 }
112 
113 } // end namespace firevision
FilterGauss()
Constructor.
Definition: gauss.cpp:49
fawkes::upoint_t start
ROI start.
Definition: roi.h:119
unsigned int y
y coordinate
Definition: types.h:36
unsigned int x
x coordinate
Definition: types.h:35
unsigned int width
ROI width.
Definition: roi.h:121
virtual void apply()
Apply the filter.
Definition: gauss.cpp:56
unsigned char ** src
Source buffers, dynamically allocated by Filter ctor.
Definition: filter.h:65
Filter interface.
Definition: filter.h:35
ROI ** src_roi
Source ROIs, dynamically allocated by Filter ctor.
Definition: filter.h:70
unsigned int height
ROI height.
Definition: roi.h:123
unsigned int line_step
line step
Definition: roi.h:129
unsigned char * dst
Destination buffer.
Definition: filter.h:67
unsigned int pixel_step
pixel step
Definition: roi.h:131
ROI * dst_roi
Destination ROI.
Definition: filter.h:72