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On most systems float is the IEEE 754 single-precision binary floating-point format (32 bits). Tesseract does not support other systems. Signed-off-by: Stefan Weil <sw@weilnetz.de>
80 lines
2.8 KiB
C
80 lines
2.8 KiB
C
/******************************************************************************
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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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#ifndef TESSERACT_TRAINING_MERGENF_H_
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#define TESSERACT_TRAINING_MERGENF_H_
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/**----------------------------------------------------------------------------
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Include Files and Type Defines
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----------------------------------------------------------------------------**/
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#include "callcpp.h"
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#include "cluster.h"
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#include "ocrfeatures.h"
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#include "picofeat.h"
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#include "protos.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 struct {
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float 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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float CompareProtos(PROTO p1, PROTO p2);
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void ComputeMergedProto(PROTO p1, PROTO p2, float w1, float w2,
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PROTO MergedProto);
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int FindClosestExistingProto(CLASS_TYPE Class, int NumMerged[],
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PROTOTYPE* Prototype);
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void MakeNewFromOld(PROTO New, PROTOTYPE* Old);
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float SubfeatureEvidence(FEATURE Feature, PROTO Proto);
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double EvidenceOf(double Similarity);
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bool DummyFastMatch(FEATURE Feature, PROTO Proto);
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void ComputePaddedBoundingBox(PROTO Proto, float TangentPad,
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float OrthogonalPad, FRECT* BoundingBox);
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bool PointInside(FRECT* Rectangle, float X, float Y);
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#endif // TESSERACT_TRAINING_MERGENF_H_
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