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93 lines
3.9 KiB
C
93 lines
3.9 KiB
C
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/**********************************************************************
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* File: fixxht.h (Formerly fixxht.h)
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* Description: Improve x_ht and look out for case inconsistencies
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* Author: Phil Cheatle
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* Created: Thu Aug 5 14:11:08 BST 1993
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*
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* (C) Copyright 1992, Hewlett-Packard Ltd.
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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** http://www.apache.org/licenses/LICENSE-2.0
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*
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**********************************************************************/
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#ifndef FIXXHT_H
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#define FIXXHT_H
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#include "varable.h"
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#include "statistc.h"
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#include "pageres.h"
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#include "notdll.h"
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extern double_VAR_H (x_ht_fraction_of_caps_ht, 0.7,
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"Fract of cps ht est of xht");
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extern double_VAR_H (x_ht_variation, 0.35,
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"Err band as fract of caps/xht dist");
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extern double_VAR_H (x_ht_sub_variation, 0.5,
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"Err band as fract of caps/xht dist");
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extern BOOL_VAR_H (rej_trial_ambigs, TRUE,
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"reject x-ht ambigs when under trial");
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extern BOOL_VAR_H (x_ht_conservative_ambigs, FALSE,
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"Dont rely on ambigs + maxht");
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extern BOOL_VAR_H (x_ht_check_est, TRUE, "Cross check estimates");
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extern BOOL_VAR_H (x_ht_case_flip, FALSE, "Flip or reject suspect case");
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extern BOOL_VAR_H (x_ht_include_dodgy_blobs, TRUE,
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"Include blobs with possible noise?");
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extern BOOL_VAR_H (x_ht_limit_flip_trials, TRUE,
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"Dont do trial flips when ambigs are close to xht?");
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extern BOOL_VAR_H (rej_use_check_block_occ, TRUE,
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"Analyse rejection behaviour");
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extern STRING_VAR_H (chs_non_ambig_caps_ht,
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"!#$%&()/12346789?ABDEFGHIKLNQRT[]\\bdfhkl",
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"Reliable ascenders");
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extern STRING_VAR_H (chs_x_ht, "acegmnopqrsuvwxyz", "X height chars");
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extern STRING_VAR_H (chs_non_ambig_x_ht, "aenqr", "reliable X height chars");
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extern STRING_VAR_H (chs_ambig_caps_x, "cCmMoO05sSuUvVwWxXzZ",
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"X ht or caps ht chars");
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extern STRING_VAR_H (chs_bl_ambig_caps_x, "pPyY",
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" Caps or descender ambigs");
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extern STRING_VAR_H (chs_caps_ht,
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"!#$%&()/0123456789?ABCDEFGHIJKLMNOPQRSTUVWXYZ[]\\bdfhkl{|}",
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"Ascender chars");
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extern STRING_VAR_H (chs_desc, "gjpqy", "Descender chars");
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extern STRING_VAR_H (chs_non_ambig_bl,
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"!#$%&01246789?ABCDEFGHIKLMNORSTUVWXYZabcdehiklmnorstuvwxz",
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"Reliable baseline chars");
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extern STRING_VAR_H (chs_odd_top, "ijt", "Chars with funny ascender region");
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extern STRING_VAR_H (chs_odd_bot, "()35JQ[]\\/{}|", "Chars with funny base");
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extern STRING_VAR_H (chs_bl,
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"!#$%&()/01246789?ABCDEFGHIJKLMNOPRSTUVWXYZ[]\\abcdefhiklmnorstuvwxz{}",
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"Baseline chars");
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extern STRING_VAR_H (chs_non_ambig_desc, "gq", "Reliable descender chars");
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void re_estimate_x_ht( //improve for 1 word
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WERD_RES *word_res, //word to do
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float *trial_x_ht //new match value
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);
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void check_block_occ(WERD_RES *word_res);
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char check_blob_occ(char proposed_char,
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INT16 blob_ht_above_baseline,
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float x_ht,
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float caps_ht);
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float estimate_from_stats(STATS &stats);
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void improve_estimate(WERD_RES *word_res,
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float &est_x_ht,
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float &est_caps_ht,
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STATS &x_ht,
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STATS &caps_ht);
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void reject_ambigs( //rej any accepted xht ambig chars
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WERD_RES *word);
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//xht ambig ht stats
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void est_ambigs(WERD_RES *word_res,
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STATS &stats,
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float *ambig_lc_x_est, //xht est
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float *ambig_uc_caps_est //caps est
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);
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BOOL8 dodgy_blob(PBLOB *blob);
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#endif
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