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/*Copyright (C) 2008-2009 Timothy B. Terriberry (tterribe@xiph.org)
You can redistribute this library 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.*/
#if !defined(_qrcode_binarize_H)
#define _qrcode_binarize_H (1)
void qr_image_cross_masking_median_filter(unsigned char *_img, int _width,
int _height);
void qr_wiener_filter(unsigned char *_img, int _width, int _height);
/*Binarizes a grayscale image.*/
unsigned char *qr_binarize(const unsigned char *_img, int _width, int _height);
#endif
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