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 <opencv2/opencv.hpp>
31#else
32# error "Neither IPP nor OpenCV available"
33#endif
34
35namespace firevision {
36
37/** @class FilterGauss <fvfilters/gauss.h>
38 * Gaussian filter.
39 * Applies Gaussian linear filter to image (blur effect).
40 */
41
42/** Constructor. */
44{
45}
46
47void
49{
50#if defined(HAVE_IPP)
51 IppiSize size;
52 size.width = src_roi[0]->width;
53 size.height = src_roi[0]->height;
54
55 /* IppStatus status = */ ippiFilterGauss_8u_C1R(
56 src[0] + (src_roi[0]->start.y * src_roi[0]->line_step)
57 + (src_roi[0]->start.x * src_roi[0]->pixel_step),
61 size,
62 ippMskSize5x5);
63
64 /*
65 cout << "FilterGauss: ippiFilterGauss exit code: " << flush;
66 switch (status) {
67 case ippStsNoErr:
68 cout << "ippStsNoErr";
69 break;
70 case ippStsNullPtrErr:
71 cout << "ippStsNullPtrErr";
72 break;
73 case ippStsSizeErr:
74 cout << "ippStsSizeErr";
75 break;
76 case ippStsStepErr:
77 cout << "ippStsStepErr";
78 break;
79 case ippStsMaskSizeErr:
80 cout << "ippStsMaskSizeErr";
81 break;
82 default:
83 cout << "Unknown status";
84 }
85 cout << endl;
86 */
87
88#elif defined(HAVE_OPENCV)
89 cv::Mat srcm(src_roi[0]->height,
90 src_roi[0]->width,
91 CV_8UC1,
92 src[0] + (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) {
97 dst = src[0];
98 dst_roi = src_roi[0];
99 }
100
101 cv::Mat dstm(dst_roi->height,
102 dst_roi->width,
103 CV_8UC1,
107
108 cv::GaussianBlur(srcm, dstm, /* ksize */ cv::Size(5, 5), /* sigma */ 1.0);
109
110#endif
111}
112
113} // end namespace firevision
virtual void apply()
Apply the filter.
Definition: gauss.cpp:48
FilterGauss()
Constructor.
Definition: gauss.cpp:43
Filter interface.
Definition: filter.h:33
ROI ** src_roi
Source ROIs, dynamically allocated by Filter ctor.
Definition: filter.h:66
unsigned char ** src
Source buffers, dynamically allocated by Filter ctor.
Definition: filter.h:61
unsigned char * dst
Destination buffer.
Definition: filter.h:63
ROI * dst_roi
Destination ROI.
Definition: filter.h:68
unsigned int height
ROI height.
Definition: roi.h:119
fawkes::upoint_t start
ROI start.
Definition: roi.h:115
unsigned int line_step
line step
Definition: roi.h:125
unsigned int width
ROI width.
Definition: roi.h:117
unsigned int pixel_step
pixel step
Definition: roi.h:127
unsigned int x
x coordinate
Definition: types.h:36
unsigned int y
y coordinate
Definition: types.h:37