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Jim O'Regan 2015-05-14 15:17:05 +01:00
parent 524666d9fa
commit 2a36a3edec
1 changed files with 44 additions and 45 deletions
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89
classify/normmatch.cpp
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@ -15,7 +15,7 @@
** See the License for the specific language governing permissions and
** limitations under the License.
******************************************************************************/
/**----------------------------------------------------------------------------
/*----------------------------------------------------------------------------
Include Files and Type Defines
----------------------------------------------------------------------------**/
#include "normmatch.h"
@ -43,7 +43,7 @@ struct NORM_PROTOS
int NumProtos;
};
/**----------------------------------------------------------------------------
/*----------------------------------------------------------------------------
Private Function Prototypes
----------------------------------------------------------------------------**/
double NormEvidenceOf(register double NormAdj);
@ -55,7 +55,7 @@ void PrintNormMatch(FILE *File,
NORM_PROTOS *ReadNormProtos(FILE *File);
/**----------------------------------------------------------------------------
/*----------------------------------------------------------------------------
Variables
----------------------------------------------------------------------------**/
@ -65,28 +65,29 @@ double_VAR(classify_norm_adj_curl, 2.0, "Norm adjust curl ...");
// Weight of width variance against height and vertical position.
const double kWidthErrorWeighting = 0.125;
/**----------------------------------------------------------------------------
/*----------------------------------------------------------------------------
Public Code
----------------------------------------------------------------------------**/
/*---------------------------------------------------------------------------*/
namespace tesseract {
/**
* This routine compares Features against each character
* normalization proto for ClassId and returns the match
* rating of the best match.
* @param ClassId id of class to match against
* @param Feature character normalization feature
* @param DebugMatch controls dump of debug info
*
* Globals:
* NormProtos character normalization prototypes
*
* @return Best match rating for Feature against protos of ClassId.
* @note Exceptions: none
* @note History: Wed Dec 19 16:56:12 1990, DSJ, Created.
*/
FLOAT32 Classify::ComputeNormMatch(CLASS_ID ClassId,
const FEATURE_STRUCT& feature,
BOOL8 DebugMatch) {
/*
** Parameters:
** ClassId id of class to match against
** Feature character normalization feature
** DebugMatch controls dump of debug info
** Globals:
** NormProtos character normalization prototypes
** Operation: This routine compares Features against each character
** normalization proto for ClassId and returns the match
** rating of the best match.
** Return: Best match rating for Feature against protos of ClassId.
** Exceptions: none
** History: Wed Dec 19 16:56:12 1990, DSJ, Created.
*/
LIST Protos;
FLOAT32 BestMatch;
FLOAT32 Match;
@ -170,16 +171,16 @@ void Classify::FreeNormProtos() {
}
} // namespace tesseract
/**----------------------------------------------------------------------------
/*----------------------------------------------------------------------------
Private Code
----------------------------------------------------------------------------**/
/**********************************************************************
* NormEvidenceOf
/**
* @name NormEvidenceOf
*
* Return the new type of evidence number corresponding to this
* normalization adjustment. The equation that represents the transform is:
* 1 / (1 + (NormAdj / midpoint) ^ curl)
**********************************************************************/
*/
double NormEvidenceOf(register double NormAdj) {
NormAdj /= classify_norm_adj_midpoint;
@ -194,22 +195,21 @@ double NormEvidenceOf(register double NormAdj) {
/*---------------------------------------------------------------------------*/
/**
* This routine dumps out detailed normalization match info.
* @param File open text file to dump match debug info to
* @param NumParams # of parameters in proto and feature
* @param Proto[] array of prototype parameters
* @param Feature[] array of feature parameters
* Globals: none
* @return none
* @note Exceptions: none
* @note History: Wed Jan 2 09:49:35 1991, DSJ, Created.
*/
void PrintNormMatch(FILE *File,
int NumParams,
PROTOTYPE *Proto,
FEATURE Feature) {
/*
** Parameters:
** File open text file to dump match debug info to
** NumParams # of parameters in proto and feature
** Proto[] array of prototype parameters
** Feature[] array of feature parameters
** Globals: none
** Operation: This routine dumps out detailed normalization match info.
** Return: none
** Exceptions: none
** History: Wed Jan 2 09:49:35 1991, DSJ, Created.
*/
int i;
FLOAT32 ParamMatch;
FLOAT32 TotalMatch;
@ -231,18 +231,17 @@ void PrintNormMatch(FILE *File,
/*---------------------------------------------------------------------------*/
namespace tesseract {
NORM_PROTOS *Classify::ReadNormProtos(FILE *File, inT64 end_offset) {
/*
** Parameters:
** File open text file to read normalization protos from
** Globals: none
** Operation: This routine allocates a new data structure to hold
** a set of character normalization protos. It then fills in
** the data structure by reading from the specified File.
** Return: Character normalization protos.
** Exceptions: none
** History: Wed Dec 19 16:38:49 1990, DSJ, Created.
/**
* This routine allocates a new data structure to hold
* a set of character normalization protos. It then fills in
* the data structure by reading from the specified File.
* @param File open text file to read normalization protos from
* Globals: none
* @return Character normalization protos.
* @note Exceptions: none
* @note History: Wed Dec 19 16:38:49 1990, DSJ, Created.
*/
NORM_PROTOS *Classify::ReadNormProtos(FILE *File, inT64 end_offset) {
NORM_PROTOS *NormProtos;
int i;
char unichar[2 * UNICHAR_LEN + 1];