ScratchEvidence Struct Reference

#include <intmatcher.h>

Public Member Functions
void	Clear (const INT_CLASS class_template)
void	ClearFeatureEvidence (const INT_CLASS class_template)
void	NormalizeSums (INT_CLASS ClassTemplate, int16_t NumFeatures, int32_t used_features)
void	UpdateSumOfProtoEvidences (INT_CLASS ClassTemplate, BIT_VECTOR ConfigMask, int16_t NumFeatures)

Public Attributes
uint8_t	feature_evidence_ [MAX_NUM_CONFIGS]
int	sum_feature_evidence_ [MAX_NUM_CONFIGS]
uint8_t	proto_evidence_ [MAX_NUM_PROTOS][MAX_PROTO_INDEX]

Detailed Description

Definition at line 69 of file intmatcher.h.

Member Function Documentation

Clear()

void ScratchEvidence::Clear

(

const INT_CLASS

class_template

)

Definition at line 708 of file intmatcher.cpp.

                                                          {
  memset(sum_feature_evidence_, 0,
         class_template->NumConfigs * sizeof(sum_feature_evidence_[0]));
  memset(proto_evidence_, 0,
         class_template->NumProtos * sizeof(proto_evidence_[0]));
}

ClearFeatureEvidence()

void ScratchEvidence::ClearFeatureEvidence

(

const INT_CLASS

class_template

)

Definition at line 715 of file intmatcher.cpp.

                                                                         {
  memset(feature_evidence_, 0,
         class_template->NumConfigs * sizeof(feature_evidence_[0]));
}

NormalizeSums()

void ScratchEvidence::NormalizeSums	(	INT_CLASS	ClassTemplate,
		int16_t	NumFeatures,
		int32_t	used_features
	)

Normalize Sum of Proto and Feature Evidence by dividing by the sum of the Feature Lengths and the Proto Lengths for each configuration.

Definition at line 1168 of file intmatcher.cpp.

                                                                         {

  for (int i = 0; i < ClassTemplate->NumConfigs; i++) {
    sum_feature_evidence_[i] = (sum_feature_evidence_[i] << 8) /
        (NumFeatures + ClassTemplate->ConfigLengths[i]);
  }
}

UpdateSumOfProtoEvidences()

void ScratchEvidence::UpdateSumOfProtoEvidences	(	INT_CLASS	ClassTemplate,
		BIT_VECTOR	ConfigMask,
		int16_t	NumFeatures
	)

Add sum of Proto Evidences into Sum Of Feature Evidence Array

Definition at line 1127 of file intmatcher.cpp.

                                                                         {

  int *IntPointer;
  uint32_t ConfigWord;
  int ProtoSetIndex;
  uint16_t ProtoNum;
  PROTO_SET ProtoSet;
  int NumProtos;
  uint16_t ActualProtoNum;

  NumProtos = ClassTemplate->NumProtos;

  for (ProtoSetIndex = 0; ProtoSetIndex < ClassTemplate->NumProtoSets;
       ProtoSetIndex++) {
    ProtoSet = ClassTemplate->ProtoSets[ProtoSetIndex];
    ActualProtoNum = (ProtoSetIndex * PROTOS_PER_PROTO_SET);
    for (ProtoNum = 0;
         ((ProtoNum < PROTOS_PER_PROTO_SET) && (ActualProtoNum < NumProtos));
         ProtoNum++, ActualProtoNum++) {
      int temp = 0;
      for (int i = 0; i < ClassTemplate->ProtoLengths[ActualProtoNum]; i++)
        temp += proto_evidence_[ActualProtoNum] [i];

      ConfigWord = ProtoSet->Protos[ProtoNum].Configs[0];
      ConfigWord &= *ConfigMask;
      IntPointer = sum_feature_evidence_;
      while (ConfigWord) {
        if (ConfigWord & 1)
          *IntPointer += temp;
        IntPointer++;
        ConfigWord >>= 1;
      }
    }
  }
}

Member Data Documentation

feature_evidence_

uint8_t ScratchEvidence::feature_evidence_[MAX_NUM_CONFIGS]

Definition at line 70 of file intmatcher.h.

proto_evidence_

uint8_t ScratchEvidence::proto_evidence_[MAX_NUM_PROTOS][MAX_PROTO_INDEX]

Definition at line 72 of file intmatcher.h.

sum_feature_evidence_

int ScratchEvidence::sum_feature_evidence_[MAX_NUM_CONFIGS]

Definition at line 71 of file intmatcher.h.

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The documentation for this struct was generated from the following files:

• /home/stweil/src/github/tesseract-ocr/tesseract/classify/intmatcher.h
• /home/stweil/src/github/tesseract-ocr/tesseract/classify/intmatcher.cpp