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 # include <cv.h>
31 #else
32 # error "Neither IPP nor OpenCV available"
33 #endif
34 
35 namespace firevision {
36 #if 0 /* just to make Emacs auto-indent happy */
37 }
38 #endif
39 
40 /** @class FilterGauss <fvfilters/gauss.h>
41  * Gaussian filter.
42  * Applies Gaussian linear filter to image (blur effect).
43  */
44 
45 /** Constructor. */
46 FilterGauss::FilterGauss()
47  : Filter("FilterGauss")
48 {
49 }
50 
51 
52 void
54 {
55 #if defined(HAVE_IPP)
56  IppiSize size;
57  size.width = src_roi[0]->width;
58  size.height = src_roi[0]->height;
59 
60  /* 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,
62  size,
63  ippMskSize5x5 );
64 
65  /*
66  cout << "FilterGauss: ippiFilterGauss exit code: " << flush;
67  switch (status) {
68  case ippStsNoErr:
69  cout << "ippStsNoErr";
70  break;
71  case ippStsNullPtrErr:
72  cout << "ippStsNullPtrErr";
73  break;
74  case ippStsSizeErr:
75  cout << "ippStsSizeErr";
76  break;
77  case ippStsStepErr:
78  cout << "ippStsStepErr";
79  break;
80  case ippStsMaskSizeErr:
81  cout << "ippStsMaskSizeErr";
82  break;
83  default:
84  cout << "Unknown status";
85  }
86  cout << endl;
87  */
88 
89 #elif defined(HAVE_OPENCV)
90  cv::Mat srcm(src_roi[0]->height, src_roi[0]->width, CV_8UC1,
91  src[0] +
92  (src_roi[0]->start.y * src_roi[0]->line_step) +
93  (src_roi[0]->start.x * src_roi[0]->pixel_step),
94  src_roi[0]->line_step);
95 
96  if (dst == NULL) { dst = src[0]; dst_roi = src_roi[0]; }
97 
98  cv::Mat dstm(dst_roi->height, dst_roi->width, CV_8UC1,
99  dst +
102  dst_roi->line_step);
103 
104  cv::GaussianBlur(srcm, dstm, /* ksize */ cv::Size(5, 5), /* sigma */ 1.0);
105 
106 #endif
107 
108 }
109 
110 } // end namespace firevision
fawkes::point_t start
ROI start.
Definition: roi.h:118
unsigned int x
x coordinate
Definition: types.h:35
unsigned int width
ROI width.
Definition: roi.h:120
virtual void apply()
Apply the filter.
Definition: gauss.cpp:53
unsigned char ** src
Source buffers, dynamically allocated by Filter ctor.
Definition: filter.h:65
Filter interface.
Definition: filter.h:35
unsigned int y
y coordinate
Definition: types.h:36
ROI ** src_roi
Source ROIs, dynamically allocated by Filter ctor.
Definition: filter.h:70
unsigned int height
ROI height.
Definition: roi.h:122
unsigned int line_step
line step
Definition: roi.h:128
unsigned char * dst
Destination buffer.
Definition: filter.h:67
unsigned int pixel_step
pixel step
Definition: roi.h:130
ROI * dst_roi
Destination ROI.
Definition: filter.h:72