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/* Seven Segment Optical Character Recognition Constant Definitions */
/* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/* Copyright (C) 2004-2025 Erik Auerswald <auerswal@unix-ag.uni-kl.de> */
/* Copyright (C) 2013 Cristiano Fontana <fontanacl@ornl.gov> */
#define PROG "ssocr"
#ifndef SSOCR2_DEFINES_H
#define SSOCR2_DEFINES_H
/* version number */
#define VERSION "2.25.1"
/* states */
#define FIND_DARK 0
#define FIND_LIGHT 1
/* boarder between dark and light */
#define THRESHOLD 50.0
#define DARK 0
#define LIGHT 1
#define UNKNOWN 2
/* segments
*
* 1 -
* 2 3 | |
* 4 -
* 5 6 | |
* 7 -
*
* */
#define HORIZ_UP 1
#define VERT_LEFT_UP 2
#define VERT_RIGHT_UP 4
#define HORIZ_MID 8
#define VERT_LEFT_DOWN 16
#define VERT_RIGHT_DOWN 32
#define HORIZ_DOWN 64
#define ALL_SEGS 127
#define DECIMAL 128
#define MINUS HORIZ_MID
/* maximum number used for a character #define */
#define CHARSET_MAX 128
/* digits */
#define D_ZERO (ALL_SEGS & ~HORIZ_MID)
#define D_ONE (VERT_RIGHT_UP | VERT_RIGHT_DOWN)
#define D_TWO (ALL_SEGS & ~(VERT_LEFT_UP | VERT_RIGHT_DOWN))
#define D_THREE (ALL_SEGS & ~(VERT_LEFT_UP | VERT_LEFT_DOWN))
#define D_FOUR (ALL_SEGS & ~(HORIZ_UP | VERT_LEFT_DOWN | HORIZ_DOWN))
#define D_FIVE (ALL_SEGS & ~(VERT_RIGHT_UP | VERT_LEFT_DOWN))
#define D_SIX (ALL_SEGS & ~VERT_RIGHT_UP)
#define D_SEVEN (HORIZ_UP | VERT_RIGHT_UP | VERT_RIGHT_DOWN)
#define D_ALTSEVEN (VERT_LEFT_UP | D_SEVEN)
#define D_EIGHT ALL_SEGS
#define D_NINE (ALL_SEGS & ~VERT_LEFT_DOWN)
#define D_ALTNINE (ALL_SEGS & ~(VERT_LEFT_DOWN | HORIZ_DOWN))
#define D_DECIMAL DECIMAL
#define D_MINUS MINUS
#define D_HEX_A (ALL_SEGS & ~HORIZ_DOWN)
#define D_HEX_b (ALL_SEGS & ~(HORIZ_UP | VERT_RIGHT_UP))
#define D_HEX_C (ALL_SEGS & ~(VERT_RIGHT_UP | HORIZ_MID | VERT_RIGHT_DOWN))
/* a C in the lower half can only happen when digit boundary detection fails */
#define D_HEX_c (HORIZ_MID | VERT_LEFT_DOWN | HORIZ_DOWN)
#define D_HEX_d (ALL_SEGS & ~(HORIZ_UP | VERT_LEFT_UP))
#define D_HEX_E (ALL_SEGS & ~(VERT_RIGHT_UP | VERT_RIGHT_DOWN))
#define D_HEX_F (ALL_SEGS & ~(VERT_RIGHT_UP | VERT_RIGHT_DOWN | HORIZ_DOWN))
#define D_U (D_ZERO & ~HORIZ_UP)
#define D_T (ALL_SEGS & ~(HORIZ_UP | VERT_RIGHT_UP | VERT_RIGHT_DOWN))
#define D_L (D_T & ~HORIZ_MID)
#define D_H (ALL_SEGS & ~(HORIZ_UP | HORIZ_DOWN))
#define D_h (VERT_LEFT_UP | VERT_LEFT_DOWN | HORIZ_MID | VERT_RIGHT_DOWN)
#define D_R (D_ZERO & ~(VERT_RIGHT_DOWN | HORIZ_DOWN))
#define D_ALT_R (VERT_LEFT_UP | VERT_LEFT_DOWN | HORIZ_UP)
/* an r in the lower half can only happen when digit boundary detection fails */
#define D_r (VERT_LEFT_DOWN | HORIZ_MID)
#define D_P (D_HEX_F | VERT_RIGHT_UP)
#define D_N (D_ZERO & ~HORIZ_DOWN)
/* an N in the lower half can only happen when digit boundary detection fails */
#define D_n (VERT_LEFT_DOWN | VERT_RIGHT_DOWN | HORIZ_MID)
#define D_Y (ALL_SEGS & ~(HORIZ_UP | VERT_LEFT_DOWN))
#define D_J (HORIZ_DOWN | VERT_RIGHT_UP | VERT_RIGHT_DOWN)
/* add two "wrong" 7 definitions used in a character set for a Chinese
* table tennis robot */
#define D_TT_WRONG_SEVEN_1 (D_SEVEN | VERT_LEFT_DOWN | HORIZ_DOWN)
#define D_TT_WRONG_SEVEN_2 (D_SEVEN | HORIZ_DOWN)
#define D_UNKNOWN 0
#define NUMBER_OF_DIGITS 6 /* in this special case */
/* a decimal point (or thousands separator) is recognized by height less
* than <maximum digit height> / DEC_H_RATIO and width less than
* <maximum digit width> / DEC_W_RATIO */
#define DEC_H_RATIO 5
#define DEC_W_RATIO 2 /* needs to work with just ones in the display, too */
/* a one is recognized by a height/width ratio > ONE_RATIO (as ints) */
#define ONE_RATIO 3
/* a minus sign is recognized by a width/height ratio > MINUS_RATIO (as ints) */
#define MINUS_RATIO 2
/* add space characters if digit distance is greater than SPC_FAC * min dist */
#define SPC_FAC 1.4
/* number of set pixels needed in a scanline to recognize a segment */
#define NEED_PIXELS 1
/* minimum number of pixels required for a segment
* this generalizes to both scanline and ratio based digit detection,
* but only when the digit is built using segments, i.e., this is not
* used for decimal separators */
#define MIN_SEGMENT 1
/* minimum width of a character respectively digit */
#define MIN_CHAR_W 1
/* minimum height of a character respectively digit */
#define MIN_CHAR_H 1
/* ignore # of pixels when checking a column fo black or white */
#define IGNORE_PIXELS 0
#define DIR_SEP "/"
#define TMP_FILE_DIR "/tmp"
#define TMP_FILE_PATTERN "ssocr.img.XXXXXX"
#define DEBUG_IMAGE_NAME "testbild.png"
/* flags set by options */
#define ABSOLUTE_THRESHOLD 1
#define DO_ITERATIVE_THRESHOLD (1<<1)
#define VERBOSE (1<<2)
#define USE_DEBUG_IMAGE (1<<3)
#define PROCESS_ONLY (1<<4)
#define PRINT_INFO (1<<5)
#define ADJUST_GRAY (1<<6)
#define DEBUG_OUTPUT (1<<7)
#define ASCII_ART_SEGMENTS (1<<8)
#define PRINT_AS_HEX (1<<9)
#define OMIT_DECIMAL (1<<10)
#define PRINT_SPACES (1<<11)
#define SPC_USE_AVG_DST (1<<12)
#define ADAPT_AFTER_CROP (1<<13)
/* colors used by ssocr */
#define SSOCR_BLACK 0
#define SSOCR_WHITE 255
#define SSOCR_DEFAULT_FOREGROUND SSOCR_BLACK
#define SSOCR_DEFAULT_BACKGROUND SSOCR_WHITE
/* maximum RGB component value */
#define MAXRGB 255
/* doubles are assumed equal when they differ less than EPSILON */
#define EPSILON 0.0000001
/* default luminance formula */
#define DEFAULT_LUM_FORMULA REC709
/* when to adapt threshold values to the image */
#define INITIAL 0 /* adapt threshold unless is was already adapted */
#define UPDATE 1 /* adapt threshold even if it was adapted before */
/* foreground and background */
typedef enum fg_bg_e {
FG,
BG
} fg_bg_t;
/* luminance types resp. formulas */
typedef enum luminance_e {
REC601,
REC709,
LINEAR,
MINIMUM,
MAXIMUM,
RED,
GREEN,
BLUE,
LUM_PARSE_ERROR
} luminance_t;
/* direction, to mirror horizontally or vertically, or for a scanline */
typedef enum direction_e {
HORIZONTAL,
VERTICAL
} direction_t;
/* character sets to choose from */
typedef enum charset_e {
CS_FULL,
CS_DIGITS,
CS_DECIMAL,
CS_HEXADECIMAL,
CS_TT_ROBOT,
CS_PARSE_ERROR
} charset_t;
#define DEFAULT_CHARSET CS_FULL
#endif /* SSOCR2_DEFINES_H */
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