| /********************************************************************** |
| * File: reject.h (Formerly reject.h) |
| * Description: Rejection functions used in tessedit |
| * Author: Phil Cheatle |
| * Created: Wed Sep 23 16:50:21 BST 1992 |
| * |
| * (C) Copyright 1992, Hewlett-Packard Ltd. |
| ** Licensed under the Apache License, Version 2.0 (the "License"); |
| ** you may not use this file except in compliance with the License. |
| ** You may obtain a copy of the License at |
| ** http://www.apache.org/licenses/LICENSE-2.0 |
| ** Unless required by applicable law or agreed to in writing, software |
| ** distributed under the License is distributed on an "AS IS" BASIS, |
| ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| ** See the License for the specific language governing permissions and |
| ** limitations under the License. |
| * |
| **********************************************************************/ |
| |
| #ifndef REJECT_H |
| #define REJECT_H |
| |
| #include "varable.h" |
| #include "pageres.h" |
| #include "notdll.h" |
| |
| extern INT_VAR_H (tessedit_reject_mode, 5, "Rejection algorithm"); |
| extern INT_VAR_H (tessedit_ok_mode, 5, "Acceptance decision algorithm"); |
| extern BOOL_VAR_H (tessedit_use_nn, TRUE, ""); |
| extern BOOL_VAR_H (tessedit_rejection_debug, FALSE, "Adaption debug"); |
| extern BOOL_VAR_H (tessedit_rejection_stats, FALSE, "Show NN stats"); |
| extern BOOL_VAR_H (tessedit_flip_0O, TRUE, "Contextual 0O O0 flips"); |
| extern double_VAR_H (tessedit_lower_flip_hyphen, 1.5, |
| "Aspect ratio dot/hyphen test"); |
| extern double_VAR_H (tessedit_upper_flip_hyphen, 1.8, |
| "Aspect ratio dot/hyphen test"); |
| extern BOOL_VAR_H (rej_trust_doc_dawg, FALSE, |
| "Use DOC dawg in 11l conf. detector"); |
| extern BOOL_VAR_H (rej_1Il_use_dict_word, FALSE, "Use dictword test"); |
| extern BOOL_VAR_H (rej_1Il_trust_permuter_type, TRUE, "Dont double check"); |
| extern BOOL_VAR_H (one_ell_conflict_default, TRUE, |
| "one_ell_conflict default"); |
| extern BOOL_VAR_H (show_char_clipping, FALSE, "Show clip image window?"); |
| extern BOOL_VAR_H (nn_debug, FALSE, "NN DEBUGGING?"); |
| extern BOOL_VAR_H (nn_reject_debug, FALSE, "NN DEBUG each char?"); |
| extern BOOL_VAR_H (nn_lax, FALSE, "Use 2nd rate matches"); |
| extern BOOL_VAR_H (nn_double_check_dict, FALSE, "Double check"); |
| extern BOOL_VAR_H (nn_conf_double_check_dict, TRUE, |
| "Double check for confusions"); |
| extern BOOL_VAR_H (nn_conf_1Il, TRUE, "NN use 1Il conflicts"); |
| extern BOOL_VAR_H (nn_conf_Ss, TRUE, "NN use Ss conflicts"); |
| extern BOOL_VAR_H (nn_conf_hyphen, TRUE, "NN hyphen conflicts"); |
| extern BOOL_VAR_H (nn_conf_test_good_qual, FALSE, "NN dodgy 1Il cross check"); |
| extern BOOL_VAR_H (nn_conf_test_dict, TRUE, "NN dodgy 1Il cross check"); |
| extern BOOL_VAR_H (nn_conf_test_sensible, TRUE, "NN dodgy 1Il cross check"); |
| extern BOOL_VAR_H (nn_conf_strict_on_dodgy_chs, TRUE, |
| "Require stronger NN match"); |
| extern double_VAR_H (nn_dodgy_char_threshold, 0.99, "min accept score"); |
| extern INT_VAR_H (nn_conf_accept_level, 4, "NN accept dodgy 1Il matches? "); |
| extern INT_VAR_H (nn_conf_initial_i_level, 3, |
| "NN accept initial Ii match level "); |
| extern BOOL_VAR_H (no_unrej_dubious_chars, TRUE, |
| "Dubious chars next to reject?"); |
| extern BOOL_VAR_H (no_unrej_no_alphanum_wds, TRUE, |
| "Stop unrej of non A/N wds?"); |
| extern BOOL_VAR_H (no_unrej_1Il, FALSE, "Stop unrej of 1Ilchars?"); |
| extern BOOL_VAR_H (rej_use_tess_accepted, TRUE, |
| "Individual rejection control"); |
| extern BOOL_VAR_H (rej_use_tess_blanks, TRUE, "Individual rejection control"); |
| extern BOOL_VAR_H (rej_use_good_perm, TRUE, "Individual rejection control"); |
| extern BOOL_VAR_H (rej_use_sensible_wd, FALSE, "Extend permuter check"); |
| extern BOOL_VAR_H (rej_alphas_in_number_perm, FALSE, "Extend permuter check"); |
| extern double_VAR_H (rej_whole_of_mostly_reject_word_fract, 0.85, |
| "if >this fract"); |
| extern INT_VAR_H (rej_mostly_reject_mode, 1, |
| "0-never, 1-afterNN, 2-after new xht"); |
| extern double_VAR_H (tessed_fullstop_aspect_ratio, 1.2, |
| "if >this fract then reject"); |
| extern INT_VAR_H (net_image_width, 40, "NN input image width"); |
| extern INT_VAR_H (net_image_height, 36, "NN input image height"); |
| extern INT_VAR_H (net_image_x_height, 22, "NN input image x_height"); |
| extern INT_VAR_H (tessedit_image_border, 2, "Rej blbs near image edge limit"); |
| extern INT_VAR_H (net_bl_nodes, 20, "Number of baseline nodes"); |
| extern double_VAR_H (nn_reject_threshold, 0.5, "NN min accept score"); |
| extern double_VAR_H (nn_reject_head_and_shoulders, 0.6, |
| "top scores sep factor"); |
| extern STRING_VAR_H (ok_single_ch_non_alphanum_wds, "-?\075", |
| "Allow NN to unrej"); |
| extern STRING_VAR_H (ok_repeated_ch_non_alphanum_wds, "-?*\075", |
| "Allow NN to unrej"); |
| extern STRING_VAR_H (conflict_set_I_l_1, "Il1[]", "Il1 conflict set"); |
| extern STRING_VAR_H (conflict_set_S_s, "Ss$", "Ss conflict set"); |
| extern STRING_VAR_H (conflict_set_hyphen, "-_~", "hyphen conflict set"); |
| extern STRING_VAR_H (dubious_chars_left_of_reject, "!'+`()-./\\<>;:^_,~\"", |
| "Unreliable chars"); |
| extern STRING_VAR_H (dubious_chars_right_of_reject, "!'+`()-./\\<>;:^_,~\"", |
| "Unreliable chars"); |
| extern INT_VAR_H (min_sane_x_ht_pixels, 8, |
| "Reject any x-ht lt or eq than this"); |
| void reject_blanks(WERD_RES *word); |
| void reject_I_1_L(WERD_RES *word); |
| //detailed results |
| void reject_poor_matches(WERD_RES *word, BLOB_CHOICE_LIST_CLIST *blob_choices); |
| float compute_reject_threshold( //compute threshold //detailed results |
| BLOB_CHOICE_LIST_CLIST *blob_choices); |
| int sort_floats( //qsort function |
| const void *arg1, //ptrs to floats |
| const void *arg2); |
| void reject_edge_blobs(WERD_RES *word); |
| BOOL8 word_contains_non_1_digit(const char *word, |
| const char *word_lengths); |
| //of character |
| inT16 nn_match_char(IMAGE &scaled_image, |
| float baseline_pos, //rel to scaled_image |
| BOOL8 dict_word, //part of dict wd? |
| BOOL8 checked_dict_word, //part of dict wd? |
| BOOL8 sensible_word, //part acceptable str? |
| BOOL8 centre, //not at word ends? |
| BOOL8 good_quality_word, //initial segmentation |
| char tess_ch //confirm this? |
| ); |
| inT16 evaluate_net_match(char top, |
| float top_score, |
| char next, |
| float next_score, |
| char tess_ch, |
| BOOL8 dict_word, |
| BOOL8 checked_dict_word, |
| BOOL8 sensible_word, |
| BOOL8 centre, |
| BOOL8 good_quality_word); |
| void dont_allow_dubious_chars(WERD_RES *word); |
| |
| void dont_allow_1Il(WERD_RES *word); |
| |
| void reject_mostly_rejects( //rej all if most rejectd |
| WERD_RES *word); |
| void flip_hyphens(WERD_RES *word); |
| void flip_0O(WERD_RES *word); |
| BOOL8 non_0_digit(const char* str, int length); |
| #endif |
