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694d3f2c20
git-svn-id: https://tesseract-ocr.googlecode.com/svn/trunk@291 d0cd1f9f-072b-0410-8dd7-cf729c803f20
265 lines
8.6 KiB
C
265 lines
8.6 KiB
C
/******************************************************************************
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** Filename: intproto.h
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** Purpose: Definition of data structures for integer protos.
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** Author: Dan Johnson
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** History: Thu Feb 7 12:58:45 1991, DSJ, Created.
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**
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** (c) Copyright Hewlett-Packard Company, 1988.
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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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#ifndef INTPROTO_H
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#define INTPROTO_H
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/**----------------------------------------------------------------------------
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Include Files and Type Defines
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----------------------------------------------------------------------------**/
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#include "matchdefs.h"
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#include "protos.h"
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#include "callcpp.h"
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#include "unicharset.h"
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/* define order of params in pruners */
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#define PRUNER_X 0
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#define PRUNER_Y 1
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#define PRUNER_ANGLE 2
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/* definition of coordinate system offsets for each table parameter */
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#define ANGLE_SHIFT (0.0)
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#define X_SHIFT (0.5)
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#define Y_SHIFT (0.5)
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#define MAX_PROTO_INDEX 24
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#define BITS_PER_WERD (8 * sizeof (uinT32))
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/* Script detection: increase this number to 128 */
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#define MAX_NUM_CONFIGS 64
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#define MAX_NUM_PROTOS 512
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#define PROTOS_PER_PROTO_SET 64
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#define MAX_NUM_PROTO_SETS (MAX_NUM_PROTOS / PROTOS_PER_PROTO_SET)
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#define NUM_PP_PARAMS 3
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#define NUM_PP_BUCKETS 64
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#define NUM_CP_BUCKETS 24
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#define CLASSES_PER_CP 32
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#define NUM_BITS_PER_CLASS 2
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#define CLASSES_PER_CP_WERD (CLASSES_PER_CP / NUM_BITS_PER_CLASS)
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#define PROTOS_PER_PP_WERD BITS_PER_WERD
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#define BITS_PER_CP_VECTOR (CLASSES_PER_CP * NUM_BITS_PER_CLASS)
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#define MAX_NUM_CLASS_PRUNERS ((MAX_NUM_CLASSES + CLASSES_PER_CP - 1) / \
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CLASSES_PER_CP)
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#define WERDS_PER_CP_VECTOR (BITS_PER_CP_VECTOR / BITS_PER_WERD)
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#define WERDS_PER_PP_VECTOR ((PROTOS_PER_PROTO_SET+BITS_PER_WERD-1)/ \
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BITS_PER_WERD)
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#define WERDS_PER_PP (NUM_PP_PARAMS * NUM_PP_BUCKETS * \
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WERDS_PER_PP_VECTOR)
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#define WERDS_PER_CP (NUM_CP_BUCKETS * NUM_CP_BUCKETS * \
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NUM_CP_BUCKETS * WERDS_PER_CP_VECTOR)
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#define WERDS_PER_CONFIG_VEC ((MAX_NUM_CONFIGS + BITS_PER_WERD - 1) / \
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BITS_PER_WERD)
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/* The first 3 dimensions of the CLASS_PRUNER_STRUCT are the
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* 3 axes of the quantized feature space.
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* The position of the the bits recorded for each class in the
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* 4th dimension is determined by using CPrunerWordIndexFor(c),
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* where c is the corresponding class id. */
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typedef uinT32 CLASS_PRUNER_STRUCT
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[NUM_CP_BUCKETS][NUM_CP_BUCKETS][NUM_CP_BUCKETS][WERDS_PER_CP_VECTOR];
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typedef
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uinT32 (*CLASS_PRUNER)[NUM_CP_BUCKETS][NUM_CP_BUCKETS][WERDS_PER_CP_VECTOR];
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typedef struct
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{
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inT8 A;
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uinT8 B;
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inT8 C;
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uinT8 Angle;
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uinT32 Configs[WERDS_PER_CONFIG_VEC];
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}
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INT_PROTO_STRUCT, *INT_PROTO;
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typedef uinT32 PROTO_PRUNER[NUM_PP_PARAMS][NUM_PP_BUCKETS][WERDS_PER_PP_VECTOR];
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typedef struct
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{
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PROTO_PRUNER ProtoPruner;
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INT_PROTO_STRUCT Protos[PROTOS_PER_PROTO_SET];
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}
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PROTO_SET_STRUCT, *PROTO_SET;
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typedef uinT32 CONFIG_PRUNER[NUM_PP_PARAMS][NUM_PP_BUCKETS][4];
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/*
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* font_properties contains properties about boldness, italicness, fixed pitch,
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* serif, fraktur
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*/
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struct FontInfo {
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char* name;
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uinT32 properties;
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bool is_italic() { return properties & 1; }
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bool is_bold() { return (properties & 2) != 0; }
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bool is_fixed_pitch() { return (properties & 4) != 0; }
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bool is_serif() { return (properties & 8) != 0; }
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bool is_fraktur() { return (properties & 16) != 0; }
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};
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// Every class (character) owns a FontSet that represents all the fonts that can
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// render this character.
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// Since almost all the characters from the same script share the same set of
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// fonts, the sets are shared over multiple classes (see
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// Classify::fontset_table_). Thus, a class only store an id to a set.
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// Because some fonts cannot render just one character of a set, there are a
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// lot of FontSet that differ only by one font. Rather than storing directly
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// the FontInfo in the FontSet structure, it's better to share FontInfos among
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// FontSets (Classify::fontinfo_table_).
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struct FontSet {
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int size;
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int* configs; // FontInfo ids
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};
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typedef struct
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{
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uinT16 NumProtos;
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uinT8 NumProtoSets;
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uinT8 NumConfigs;
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PROTO_SET ProtoSets[MAX_NUM_PROTO_SETS];
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uinT8 *ProtoLengths;
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uinT16 ConfigLengths[MAX_NUM_CONFIGS];
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int font_set_id; // FontSet id, see above
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}
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INT_CLASS_STRUCT, *INT_CLASS;
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typedef struct
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{
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int NumClasses;
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int NumClassPruners;
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INT_CLASS Class[MAX_NUM_CLASSES];
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CLASS_PRUNER ClassPruner[MAX_NUM_CLASS_PRUNERS];
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}
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INT_TEMPLATES_STRUCT, *INT_TEMPLATES;
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/* definitions of integer features*/
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#define MAX_NUM_INT_FEATURES 512
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#define INT_CHAR_NORM_RANGE 256
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struct INT_FEATURE_STRUCT
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{
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uinT8 X;
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uinT8 Y;
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uinT8 Theta;
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inT8 CP_misses;
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};
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typedef INT_FEATURE_STRUCT *INT_FEATURE;
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typedef INT_FEATURE_STRUCT INT_FEATURE_ARRAY[MAX_NUM_INT_FEATURES];
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enum IntmatcherDebugAction {
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IDA_ADAPTIVE,
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IDA_STATIC,
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IDA_BOTH
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};
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/**----------------------------------------------------------------------------
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Macros
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----------------------------------------------------------------------------**/
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#define MaxNumIntProtosIn(C) (C->NumProtoSets * PROTOS_PER_PROTO_SET)
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#define SetForProto(P) (P / PROTOS_PER_PROTO_SET)
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#define IndexForProto(P) (P % PROTOS_PER_PROTO_SET)
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#define ProtoForProtoId(C,P) (&((C->ProtoSets[SetForProto (P)])-> \
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Protos [IndexForProto (P)]))
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#define PPrunerWordIndexFor(I) (((I) % PROTOS_PER_PROTO_SET) / \
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PROTOS_PER_PP_WERD)
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#define PPrunerBitIndexFor(I) ((I) % PROTOS_PER_PP_WERD)
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#define PPrunerMaskFor(I) (1 << PPrunerBitIndexFor (I))
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#define MaxNumClassesIn(T) (T->NumClassPruners * CLASSES_PER_CP)
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#define LegalClassId(c) ((c) >= 0 && (c) <= MAX_CLASS_ID)
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#define UnusedClassIdIn(T,c) ((T)->Class[c] == NULL)
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#define ClassForClassId(T,c) ((T)->Class[c])
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#define ClassPrunersFor(T) ((T)->ClassPruner)
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#define CPrunerIdFor(c) ((c) / CLASSES_PER_CP)
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#define CPrunerFor(T,c) ((T)->ClassPruner [CPrunerIdFor (c)])
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#define CPrunerWordIndexFor(c) (((c) % CLASSES_PER_CP) / CLASSES_PER_CP_WERD)
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#define CPrunerBitIndexFor(c) (((c) % CLASSES_PER_CP) % CLASSES_PER_CP_WERD)
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#define CPrunerMaskFor(L,c) (((L)+1) << CPrunerBitIndexFor (c) * NUM_BITS_PER_CLASS)
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/* DEBUG macros*/
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#define PRINT_MATCH_SUMMARY 0x001
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#define DISPLAY_FEATURE_MATCHES 0x002
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#define DISPLAY_PROTO_MATCHES 0x004
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#define PRINT_FEATURE_MATCHES 0x008
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#define PRINT_PROTO_MATCHES 0x010
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#define CLIP_MATCH_EVIDENCE 0x020
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#define MatchDebuggingOn(D) (D)
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#define PrintMatchSummaryOn(D) ((D) & PRINT_MATCH_SUMMARY)
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#define DisplayFeatureMatchesOn(D) ((D) & DISPLAY_FEATURE_MATCHES)
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#define DisplayProtoMatchesOn(D) ((D) & DISPLAY_PROTO_MATCHES)
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#define PrintFeatureMatchesOn(D) ((D) & PRINT_FEATURE_MATCHES)
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#define PrintProtoMatchesOn(D) ((D) & PRINT_PROTO_MATCHES)
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#define ClipMatchEvidenceOn(D) ((D) & CLIP_MATCH_EVIDENCE)
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/**----------------------------------------------------------------------------
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Public Function Prototypes
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----------------------------------------------------------------------------**/
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void AddIntClass(INT_TEMPLATES Templates, CLASS_ID ClassId, INT_CLASS Class);
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int AddIntConfig(INT_CLASS Class);
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int AddIntProto(INT_CLASS Class);
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void AddProtoToClassPruner(PROTO Proto,
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CLASS_ID ClassId,
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INT_TEMPLATES Templates);
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void AddProtoToProtoPruner(PROTO Proto, int ProtoId, INT_CLASS Class);
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int BucketFor(FLOAT32 Param, FLOAT32 Offset, int NumBuckets);
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int CircBucketFor(FLOAT32 Param, FLOAT32 Offset, int NumBuckets);
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void UpdateMatchDisplay();
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void ConvertConfig(BIT_VECTOR Config, int ConfigId, INT_CLASS Class);
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void ConvertProto(PROTO Proto, int ProtoId, INT_CLASS Class);
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void DisplayIntFeature(INT_FEATURE Feature, FLOAT32 Evidence);
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void DisplayIntProto(INT_CLASS Class, PROTO_ID ProtoId, FLOAT32 Evidence);
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INT_CLASS NewIntClass(int MaxNumProtos, int MaxNumConfigs);
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INT_TEMPLATES NewIntTemplates();
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void free_int_templates(INT_TEMPLATES templates);
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void ShowMatchDisplay();
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/*----------------------------------------------------------------------------*/
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void InitIntMatchWindowIfReqd();
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void InitProtoDisplayWindowIfReqd();
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void InitFeatureDisplayWindowIfReqd();
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#endif
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