68 lines
2.4 KiB
C
68 lines
2.4 KiB
C
/*
|
|
* Copyright (C) 2007-2008 Daniel Drake <dsd@gentoo.org>
|
|
* Copyright (C) 2018 Bastien Nocera <hadess@hadess.net>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef __FPI_IMG_H__
|
|
#define __FPI_IMG_H__
|
|
|
|
#include <stdint.h>
|
|
|
|
struct fp_minutiae;
|
|
|
|
/**
|
|
* FpiImgFlags:
|
|
* @FP_IMG_V_FLIPPED: the image is vertically flipped
|
|
* @FP_IMG_H_FLIPPED: the image is horizontally flipped
|
|
* @FP_IMG_COLORS_INVERTED: the colours are inverted
|
|
* @FP_IMG_BINARIZED_FORM: binarised image, see fp_img_binarize()
|
|
* @FP_IMG_PARTIAL: the image is partial, useful for driver to keep track
|
|
* of incomplete captures
|
|
*
|
|
* Flags used in the #fp_img structure to describe the image contained
|
|
* into the structure. Note that a number of functions will refuse to
|
|
* handle images which haven't been standardised through fp_img_standardize()
|
|
* (meaning the @FP_IMG_V_FLIPPED, @FP_IMG_H_FLIPPED and @FP_IMG_COLORS_INVERTED
|
|
* should all be unset when the image needs to be analysed).
|
|
*/
|
|
typedef enum {
|
|
FP_IMG_V_FLIPPED = 1 << 0,
|
|
FP_IMG_H_FLIPPED = 1 << 1,
|
|
FP_IMG_COLORS_INVERTED = 1 << 2,
|
|
FP_IMG_BINARIZED_FORM = 1 << 3,
|
|
FP_IMG_PARTIAL = 1 << 4
|
|
} FpiImgFlags;
|
|
|
|
struct fp_img {
|
|
int width;
|
|
int height;
|
|
size_t length;
|
|
FpiImgFlags flags;
|
|
struct fp_minutiae *minutiae;
|
|
unsigned char *binarized;
|
|
unsigned char data[0];
|
|
};
|
|
|
|
struct fp_img *fpi_img_new(size_t length);
|
|
struct fp_img *fpi_img_new_for_imgdev(struct fp_img_dev *dev);
|
|
struct fp_img *fpi_img_realloc(struct fp_img *img, size_t newsize);
|
|
struct fp_img *fpi_img_resize(struct fp_img *img, unsigned int w_factor, unsigned int h_factor);
|
|
|
|
int fpi_std_sq_dev(const unsigned char *buf, int size);
|
|
int fpi_mean_sq_diff_norm(unsigned char *buf1, unsigned char *buf2, int size);
|
|
|
|
#endif
|