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https://github.com/tesseract-ocr/tesseract.git
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107 lines
3.0 KiB
C
107 lines
3.0 KiB
C
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/******************************************************************************
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** Filename: MergeNF.c
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** Purpose: Program for merging similar nano-feature protos
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** Author: Dan Johnson
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** History: Wed Nov 21 09:55:23 1990, 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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/**----------------------------------------------------------------------------
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Include Files and Type Defines
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----------------------------------------------------------------------------**/
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#include "protos.h"
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#include "cluster.h"
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#include "ocrfeatures.h"
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#include "training.h"
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#define WORST_MATCH_ALLOWED (0.9)
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#define WORST_EVIDENCE (1.0)
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#define MAX_LENGTH_MISMATCH (2.0 * GetPicoFeatureLength ())
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#define PROTO_SUFFIX ".mf.p"
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#define CONFIG_SUFFIX ".cl"
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#define NO_PROTO (-1)
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#define XPOSITION 0
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#define YPOSITION 1
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#define MFLENGTH 2
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#define ORIENTATION 3
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typedef enum {PicoFeatY, PicoFeatDir, PicoFeatX} PICO_FEAT_PARAM_NAME;
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typedef struct
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{
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FLOAT32 MinX, MaxX, MinY, MaxY;
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} FRECT;
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/**----------------------------------------------------------------------------
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Public Macros
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----------------------------------------------------------------------------**/
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#define CenterX(M) ( (M)[XPOSITION] )
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#define CenterY(M) ( (M)[YPOSITION] )
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#define LengthOf(M) ( (M)[MFLENGTH] )
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#define OrientationOf(M) ( (M)[ORIENTATION] )
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/**----------------------------------------------------------------------------
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Public Function Prototypes
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----------------------------------------------------------------------------**/
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FLOAT32 CompareProtos (
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PROTO p1,
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PROTO p2);
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void ComputeMergedProto (
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PROTO p1,
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PROTO p2,
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FLOAT32 w1,
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FLOAT32 w2,
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PROTO MergedProto);
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int FindClosestExistingProto (
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CLASS_TYPE Class,
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int NumMerged[],
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PROTOTYPE *Prototype);
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void MakeNewFromOld (
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PROTO New,
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PROTOTYPE *Old);
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void InitSubfeatureVars ();
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FLOAT32 SubfeatureEvidence (
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FEATURE Feature,
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PROTO Proto);
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FLOAT32 EvidenceOf (
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register FLOAT32 Similarity);
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void InitFastTrainerVars ();
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BOOL8 DummyFastMatch (
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FEATURE Feature,
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PROTO Proto);
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void ComputePaddedBoundingBox (
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PROTO Proto,
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FLOAT32 TangentPad,
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FLOAT32 OrthogonalPad,
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FRECT *BoundingBox);
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BOOL8 PointInside (
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FRECT *Rectangle,
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FLOAT32 X,
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FLOAT32 Y);
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extern FEATURE_DESC_STRUCT PicoFeatDesc;
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