1 /**********
2 *
3 * Copyright (c) 2003, Division of Imaging Science and Biomedical Engineering,
4 * University of Manchester, UK. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without modification,
7 * are permitted provided that the following conditions are met:
8 *
9 * . Redistributions of source code must retain the above copyright notice,
10 * this list of conditions and the following disclaimer.
11 *
12 * . Redistributions in binary form must reproduce the above copyright notice,
13 * this list of conditions and the following disclaimer in the documentation
14 * and/or other materials provided with the distribution.
15 *
16 * . Neither the name of the University of Manchester nor the names of its
17 * contributors may be used to endorse or promote products derived from this
18 * software without specific prior written permission.
19 *
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
25 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 *
33 **********
34 *
35 * Program : TINA
36 * File : $Source: /home/tina/cvs/tina-libs/tina/image/imgPrc_complexify.c,v $
37 * Date : $Date: 2003/09/22 16:09:02 $
38 * Version : $Revision: 1.4 $
39 * CVS Id : $Id: imgPrc_complexify.c,v 1.4 2003/09/22 16:09:02 tony Exp $
40 *
41 * Author : Legacy TINA
42 */
43
44 /**
45 * @file
46 * @brief Generate a complex image from two scalar images representing real and imaginary components.
47 *
48 */
49
50 #include "imgPrc_complexify.h"
51
52 #if HAVE_CONFIG_H
53 #include <config.h>
54 #endif
55
56 #include <math.h>
57 #include <tina/sys/sysDef.h>
58 #include <tina/sys/sysPro.h>
59 #include <tina/math/mathDef.h>
60 #include <tina/math/mathPro.h>
61 #include <tina/image/img_GenDef.h>
62 #include <tina/image/img_GenPro.h>
63
64 Imrect *imz_cmplx(Imrect * im1, Imrect * im2)
65 {
66 Imrect *im3;
67 Imregion *roi;
68 float *row1;
69 float *row2;
70 Complex *row3;
71 int lx, ux, ly, uy;
72 int width, height;
73 int i, j;
74
75 if (im1 == NULL || im2 == NULL)
76 return (NULL);
77
78 roi = roi_inter(im1->region, im2->region);
79 if (roi == NULL)
80 return (NULL);
81 lx = roi->lx;
82 ux = roi->ux;
83 ly = roi->ly;
84 uy = roi->uy;
85
86 width = MIN(im1->width, im2->width);
87 height = MIN(im1->height, im2->height);
88
89 im3 = im_alloc(height, width, roi, complex_v);
90 row1 = fvector_alloc(lx, ux);
91 row2 = fvector_alloc(lx, ux);
92 row3 = zvector_alloc(lx, ux);
93
94 for (i = ly; i < uy; ++i)
95 {
96 im_get_rowf(row1, im1, i, lx, ux);
97 im_get_rowf(row2, im2, i, lx, ux);
98 for (j = lx; j < ux; ++j)
99 row3[j] = cmplx((double) row1[j], (double) row2[j]);
100 im_put_rowz(row3, im3, i, lx, ux);
101 }
102
103 fvector_free(row1, lx);
104 fvector_free(row2, lx);
105 zvector_free(row3, lx);
106 rfree(roi);
107 return (im3);
108 }
109
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