https://doi.org/10.5201/ipol.2013.77
Revision 2ac5947d466e3b5d316bbeb2e9d449f579c23c81 authored by Software Heritage on 22 February 2013, 00:00:00 UTC, committed by Software Heritage on 23 October 2013, 00:00:00 UTC
1 parent 356ea39
Tip revision: 2ac5947d466e3b5d316bbeb2e9d449f579c23c81 authored by Software Heritage on 22 February 2013, 00:00:00 UTC
ipol: Deposit 1239 in collection ipol
ipol: Deposit 1239 in collection ipol
Tip revision: 2ac5947
image.h
/*----------------------------------------------------------------------------
"Recovering the Subpixel PSF from Two Photographs at Different Distances"
Copyright 2013 mauricio delbracio (mdelbra@gmail.com)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
----------------------------------------------------------------------------*/
/**
* @file image.h
* @brief library header for basic image processing.
* @author Mauricio Delbracio (mdelbra@gmail.com)
*/
#ifndef IMAGE_H_
#define IMAGE_H_
/*---------------------------------------------------------------------------*/
/** @brief double image val type
The pixel value at (x,y) is accessed by:
image->val[ x + y * image->ncol ]
with x and y integer.
*/
typedef struct imageFloatStruct
{
float *val;
int ncol, nrow;
} *ImageFloat;
void free_imageFloat(ImageFloat i);
ImageFloat new_imageFloat(int ncol, int nrow);
/*---------------------------------------------------------------------------*/
void error(char *msg);
ImageFloat convol_sep2(ImageFloat in, float *xker, int xsize, float *yker,
int ysize);
ImageFloat convol(ImageFloat in, ImageFloat kernel);
ImageFloat extract_window(ImageFloat in, int xmin, int xmax,
int ymin, int ymax);
ImageFloat bicubic(ImageFloat X, ImageFloat Y, ImageFloat in, float a);
ImageFloat compute_dct_image(ImageFloat img);
ImageFloat compute_idct_image(ImageFloat img);
float* gaussian_kernel(float sigma, int *nsize);
ImageFloat lpf_image_dct (ImageFloat in, int fcx, int fcy);
int roundfi(float x);
void normalize_area(float* h, int n);
void evaluate_homography(float* H, float *Pin, float *Pout, int np);
void write_ascii_matrix(float *M, int ncol, int nrow, char *name);
void write_ascii_imageFloat (ImageFloat image, char *name);
#endif /* IMAGE_H_ */
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