54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
/*
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* Copyright (C) 2007-2008 Daniel Drake <dsd@gentoo.org>
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* Copyright (C) 2018 Bastien Nocera <hadess@hadess.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef __FPI_IMG_H__
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#define __FPI_IMG_H__
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#include <stdint.h>
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/* bit values for fp_img.flags */
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#define FP_IMG_V_FLIPPED (1<<0)
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#define FP_IMG_H_FLIPPED (1<<1)
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#define FP_IMG_COLORS_INVERTED (1<<2)
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#define FP_IMG_BINARIZED_FORM (1<<3)
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#define FP_IMG_PARTIAL (1<<4)
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#define FP_IMG_STANDARDIZATION_FLAGS (FP_IMG_V_FLIPPED | FP_IMG_H_FLIPPED \
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| FP_IMG_COLORS_INVERTED)
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struct fp_img {
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int width;
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int height;
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size_t length;
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uint16_t flags;
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struct fp_minutiae *minutiae;
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unsigned char *binarized;
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unsigned char data[0];
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};
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struct fp_img *fpi_img_new(size_t length);
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struct fp_img *fpi_img_new_for_imgdev(struct fp_img_dev *dev);
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struct fp_img *fpi_img_resize(struct fp_img *img, size_t newsize);
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struct fp_img *fpi_im_resize(struct fp_img *img, unsigned int w_factor, unsigned int h_factor);
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int fpi_std_sq_dev(const unsigned char *buf, int size);
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int fpi_mean_sq_diff_norm(unsigned char *buf1, unsigned char *buf2, int size);
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#endif
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