1 /*
2  * Copyright (c) 2016-2019, The University of Oxford
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are met:
7  * 1. Redistributions of source code must retain the above copyright notice,
8  *    this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright notice,
10  *    this list of conditions and the following disclaimer in the documentation
11  *    and/or other materials provided with the distribution.
12  * 3. Neither the name of the University of Oxford nor the names of its
13  *    contributors may be used to endorse or promote products derived from this
14  *    software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26  * POSSIBILITY OF SUCH DAMAGE.
27  */
28 
29 #ifndef OSKAR_GRID_CORRECTION_H_
30 #define OSKAR_GRID_CORRECTION_H_
31 
32 /**
33  * @file oskar_grid_correction.h
34  */
35 
36 #include <oskar_global.h>
37 #include <mem/oskar_mem.h>
38 
39 #ifdef __cplusplus
40 extern "C" {
41 #endif
42 
43 /**
44  * @brief
45  * Applies grid correction to an image.
46  *
47  * @details
48  * Applies grid correction to an image, given the correction function to use.
49  * This correction should be applied to the complex image,
50  * immediately after taking the FFT.
51  *
52  * @param[in] image_size        Side length of image.
53  * @param[in] corr_func         Correction function, length \p image_size.
54  * @param[in,out] complex_image Complex image array.
55  * @param[in,out] status        Status return code.
56  */
57 OSKAR_EXPORT
58 void oskar_grid_correction(const int image_size,
59         const oskar_Mem* corr_func, oskar_Mem* complex_image, int* status);
60 
61 #ifdef __cplusplus
62 }
63 #endif
64 
65 #endif /* OSKAR_GRID_CORRECTION_H_ */
66