$extrastylesheet
Olena
User documentation 2.1
An Image Processing Platform
Scribo
Modules
Namespaces
Classes
All
Classes
Namespaces
Functions
Variables
Typedefs
Enumerations
Enumerator
Friends
Groups
Pages
pgm_niblack_threshold_image.cc
1
// Copyright (C) 2010, 2011 EPITA Research and Development Laboratory
2
// (LRDE)
3
//
4
// This file is part of Olena.
5
//
6
// Olena is free software: you can redistribute it and/or modify it under
7
// the terms of the GNU General Public License as published by the Free
8
// Software Foundation, version 2 of the License.
9
//
10
// Olena is distributed in the hope that it will be useful,
11
// but WITHOUT ANY WARRANTY; without even the implied warranty of
12
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13
// General Public License for more details.
14
//
15
// You should have received a copy of the GNU General Public License
16
// along with Olena. If not, see <http://www.gnu.org/licenses/>.
17
//
18
// As a special exception, you may use this file as part of a free
19
// software project without restriction. Specifically, if other files
20
// instantiate templates or use macros or inline functions from this
21
// file, or you compile this file and link it with other files to produce
22
// an executable, this file does not by itself cause the resulting
23
// executable to be covered by the GNU General Public License. This
24
// exception does not however invalidate any other reasons why the
25
// executable file might be covered by the GNU General Public License.
26
27
#include <mln/io/pgm/all.hh>
28
29
#include <scribo/binarization/niblack_threshold.hh>
30
#include <scribo/debug/usage.hh>
31
32
const
char
*args_desc[][2] =
33
{
34
{
"input.pgm"
,
"A graylevel image."
},
35
{
"output.pgm"
,
"A threshold image."
},
36
{
"w"
,
"Window size (default 101)."
},
37
{
"k"
,
"Niblack's formulae parameter (default -0.2)."
},
38
{0, 0}
39
};
40
41
42
int
main(
int
argc,
char
*argv[])
43
{
44
using namespace
mln;
45
46
if
(argc != 5 && argc != 4 && argc != 3)
47
return
scribo::debug::usage
(argv,
48
"Compute a threshold image based on Niblack's algorithm."
,
49
"input.pgm output.pgm <w> <k>"
,
50
args_desc);
51
52
mln_trace(
"main"
);
53
54
unsigned
w;
55
if
(argc >= 4)
56
w = atoi(argv[3]);
57
else
58
w = 101;
59
60
double
k;
61
if
(argc >= 5)
62
k = atof(argv[4]);
63
else
64
k = -0.2;
65
66
std::cout <<
"Using w="
<< w <<
" and k="
<< k << std::endl;
67
68
image2d<value::int_u8>
input;
69
io::pgm::load
(input, argv[1]);
70
71
image2d<value::int_u8>
out =
scribo::binarization::niblack_threshold
(input, w, k);
72
73
74
io::pgm::save
(out, argv[2]);
75
76
77
}
scribo
src
binarization
pgm_niblack_threshold_image.cc
Copyright (C) 2012 EPITA Research and Development Laboratory (LRDE)