classify/ocrfeatures.cpp

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/* =================
 Include Files and Type Defines
 ==================== */
#include "ocrfeatures.h"
#include "emalloc.h"
#include "callcpp.h"
#include "danerror.h"
#include "freelist.h"
#include "scanutils.h"

/* =================
              Public Code
 ==================== */
/* =============================== */
BOOL8 AddFeature(FEATURE_SET FeatureSet, FEATURE Feature) { 
  if (NumFeaturesIn (FeatureSet) >= MaxNumFeaturesIn (FeatureSet)) {
    FreeFeature(Feature);
    return (FALSE);
  }

  FeatureIn (FeatureSet, NumFeaturesIn (FeatureSet)) = Feature;
  NumFeaturesIn (FeatureSet)++;
  return (TRUE);

}                                /* AddFeature */


/* =============================== */
void DefaultInitFXVars() { 
}                                /* DefaultInitFXVars */


/* =============================== */
void FreeFeature(FEATURE Feature) { 
  if (Feature) {
    c_free_struct (Feature, sizeof (FEATURE_STRUCT)
      + sizeof (FLOAT32) * (NumParamsIn (Feature) - 1),
      "sizeof(FEATURE_STRUCT)+sizeof(FLOAT32)*(NumParamsIn(Feature)-1)");
  }

}                                /* FreeFeature */


/* =============================== */
void FreeFeatureSet(FEATURE_SET FeatureSet) { 
  int i;

  if (FeatureSet) {
    for (i = 0; i < NumFeaturesIn (FeatureSet); i++)
      FreeFeature (FeatureIn (FeatureSet, i));
    memfree(FeatureSet);
  }
}                                /* FreeFeatureSet */


/* =============================== */
FEATURE NewFeature(FEATURE_DESC FeatureDesc) { 
  FEATURE Feature;

  Feature = (FEATURE) c_alloc_struct (sizeof (FEATURE_STRUCT) +
    (FeatureDesc->NumParams - 1) *
    sizeof (FLOAT32),
    "sizeof(FEATURE_STRUCT)+sizeof(FLOAT32)*(NumParamsIn(Feature)-1)");
  TypeOf (Feature) = FeatureDesc;
  return (Feature);

}                                /* NewFeature */


/* =============================== */
FEATURE_SET NewFeatureSet(int NumFeatures) { 
  FEATURE_SET FeatureSet;

  FeatureSet = (FEATURE_SET) Emalloc (sizeof (FEATURE_SET_STRUCT) +
    (NumFeatures - 1) * sizeof (FEATURE));
  MaxNumFeaturesIn (FeatureSet) = NumFeatures;
  NumFeaturesIn (FeatureSet) = 0;
  return (FeatureSet);

}                                /* NewFeatureSet */


/* =============================== */
FEATURE ReadFeature(FILE *File, FEATURE_DESC FeatureDesc) { 
  FEATURE Feature;
  int i;

  Feature = NewFeature (FeatureDesc);
  for (i = 0; i < NumParamsIn (Feature); i++) {
    if (fscanf (File, "%f", &(ParamOf (Feature, i))) != 1)
      DoError (ILLEGAL_FEATURE_PARAM, "Illegal feature parameter spec");
  }
  return (Feature);

}                                /* ReadFeature */


/* =============================== */
FEATURE_SET ReadFeatureSet(FILE *File, FEATURE_DESC FeatureDesc) { 
  FEATURE_SET FeatureSet;
  int NumFeatures;
  int i;

  if (fscanf (File, "%d", &NumFeatures) != 1 || NumFeatures < 0)
    DoError (ILLEGAL_NUM_FEATURES, "Illegal number of features in set");

  FeatureSet = NewFeatureSet (NumFeatures);
  for (i = 0; i < NumFeatures; i++)
    AddFeature (FeatureSet, ReadFeature (File, FeatureDesc));

  return (FeatureSet);

}                                /* ReadFeatureSet */


/* =============================== */
void WriteFeature(FILE *File, FEATURE Feature) { 
  int i;

  for (i = 0; i < NumParamsIn (Feature); i++)
    fprintf (File, " %12g", ParamOf (Feature, i));
  fprintf (File, "\n");

}                                /* WriteFeature */


/* =============================== */
void WriteFeatureSet(FILE *File, FEATURE_SET FeatureSet) { 
  int i;

  if (FeatureSet) {
    fprintf (File, "%d\n", NumFeaturesIn (FeatureSet));
    for (i = 0; i < NumFeaturesIn (FeatureSet); i++)
      WriteFeature (File, FeatureIn (FeatureSet, i));
  }
}                                /* WriteFeatureSet */


/* =============================== */
void WriteOldParamDesc(FILE *File, FEATURE_DESC FeatureDesc) { 
  int i;

  fprintf (File, "%d\n", FeatureDesc->NumParams);
  for (i = 0; i < FeatureDesc->NumParams; i++) {
    if (FeatureDesc->ParamDesc[i].Circular)
      fprintf (File, "circular ");
    else
      fprintf (File, "linear   ");

    if (FeatureDesc->ParamDesc[i].NonEssential)
      fprintf (File, "non-essential  ");
    else
      fprintf (File, "essential      ");

    fprintf (File, "%f  %f\n",
      FeatureDesc->ParamDesc[i].Min, FeatureDesc->ParamDesc[i].Max);
  }
}                                /* WriteOldParamDesc */

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