1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
/*====================================================================*
- Copyright (C) 2001 Leptonica. All rights reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions
- are met:
- 1. Redistributions of source code must retain the above copyright
- notice, this list of conditions and the following disclaimer.
- 2. Redistributions in binary form must reproduce the above
- copyright notice, this list of conditions and the following
- disclaimer in the documentation and/or other materials
- provided with the distribution.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANY
- CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*====================================================================*/
/*
* rotate_it.c
*
* rotate_it filein angle fileout [type incolor]
*
* where:
* angle: in degrees; use 90, 180, 270 for orthogonal rotation
* type: "areamap", "shear", "sampling"
* incolor: "black", "white"
*
* If 'type' and 'incolor' are omitted, by default we use:
* type: sampling for 1 bpp; areamap for bpp > 1
* incolor: white
*
* If angle is in {90.0, 180.0, 270.0}, this does an orthogonal
* rotation. Args 'type' and 'incolor' can be omitted.
*
* This writes the output file in the same encoded format as
* the input file. If the input file is jpeg, the output file
* is written with default quality factor 75.
*/
#ifdef HAVE_CONFIG_H
#include <config_auto.h>
#endif /* HAVE_CONFIG_H */
#include <string.h>
#include "allheaders.h"
int main(int argc,
char **argv)
{
l_int32 icolor, itype, format, quads;
l_float32 angle, deg2rad, anglerad;
char *filein, *fileout, *type, *incolor;
PIX *pixs, *pixd;
if (argc != 4 && argc != 6)
return ERROR_INT(
"\n Syntax: rotate_it filein angle fileout [type incolor]",
__func__, 1);
filein = argv[1];
angle = atof(argv[2]);
fileout = argv[3];
if (argc == 6) {
type = argv[4];
incolor = argv[5];
}
setLeptDebugOK(1);
deg2rad = 3.1415926535 / 180.;
if ((pixs = pixRead(filein)) == NULL)
return ERROR_INT("pixs not made", __func__, 1);
format = pixGetInputFormat(pixs);
if (format == IFF_UNKNOWN) format = IFF_PNG;
if (angle == 90.0 || angle == 180.0 || angle == 270.0) {
quads = (l_int32)((angle + 0.5) / 90.0);
pixd = pixRotateOrth(pixs, quads);
pixWrite(fileout, pixd, format);
pixDestroy(&pixs);
pixDestroy(&pixd);
return 0;
}
anglerad = deg2rad * angle;
icolor = L_BRING_IN_WHITE;
itype = L_ROTATE_AREA_MAP;
if (argc == 6) {
icolor = (!strcmp(incolor, "white")) ? L_BRING_IN_WHITE
: L_BRING_IN_BLACK;
if (!strcmp(type, "areamap"))
itype = L_ROTATE_AREA_MAP;
else if (!strcmp(type, "shear"))
itype = L_ROTATE_SHEAR;
else
itype = L_ROTATE_SAMPLING;
}
pixd = pixRotate(pixs, anglerad, itype, icolor, 0, 0);
pixWrite(fileout, pixd, format);
pixDestroy(&pixs);
pixDestroy(&pixd);
return 0;
}
|
