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doxygen classify/outfeat.cpp

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Jim O'Regan 2015-07-20 17:02:42 +01:00
parent 6c511b9fa0
commit f9b4080a56
1 changed files with 56 additions and 59 deletions
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115
classify/outfeat.cpp
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@ -28,24 +28,24 @@
#include <stdio.h> #include <stdio.h>
/**---------------------------------------------------------------------------- /*----------------------------------------------------------------------------
Public Code Public Code
----------------------------------------------------------------------------**/ ----------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
namespace tesseract { namespace tesseract {
FEATURE_SET Classify::ExtractOutlineFeatures(TBLOB *Blob) { /**
/* * Convert each segment in the outline to a feature
** Parameters: * and return the features.
** Blob blob to extract pico-features from * @param Blob blob to extract pico-features from
** LineStats statistics on text row blob is in * @param LineStats statistics on text row blob is in
** Globals: none * @eturn Outline-features for Blob.
** Operation: Convert each segment in the outline to a feature * @note Globals: none
** and return the features. * @note Exceptions: none
** Return: Outline-features for Blob. * @note History:
** Exceptions: none * - 11/13/90, DSJ, Created.
** History: 11/13/90, DSJ, Created. * - 05/24/91, DSJ, Updated for either char or baseline normalize.
** 05/24/91, DSJ, Updated for either char or baseline normalize.
*/ */
FEATURE_SET Classify::ExtractOutlineFeatures(TBLOB *Blob) {
LIST Outlines; LIST Outlines;
LIST RemainingOutlines; LIST RemainingOutlines;
MFOUTLINE Outline; MFOUTLINE Outline;
@ -71,30 +71,29 @@ FEATURE_SET Classify::ExtractOutlineFeatures(TBLOB *Blob) {
} /* ExtractOutlineFeatures */ } /* ExtractOutlineFeatures */
} // namespace tesseract } // namespace tesseract
/**---------------------------------------------------------------------------- /*----------------------------------------------------------------------------
Private Code Private Code
----------------------------------------------------------------------------**/ ----------------------------------------------------------------------------*/
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
/**
* This routine computes the midpoint between Start and
* End to obtain the x,y position of the outline-feature. It
* also computes the direction from Start to End as the
* direction of the outline-feature and the distance from
* Start to End as the length of the outline-feature.
* This feature is then
* inserted into the next feature slot in FeatureSet.
* @param Start starting point of outline-feature
* @param End ending point of outline-feature
* @param FeatureSet set to add outline-feature to
* @return none (results are placed in FeatureSet)
* @note Globals: none
* @note Exceptions: none
* @note History: 11/13/90, DSJ, Created.
*/
void AddOutlineFeatureToSet(FPOINT *Start, void AddOutlineFeatureToSet(FPOINT *Start,
FPOINT *End, FPOINT *End,
FEATURE_SET FeatureSet) { FEATURE_SET FeatureSet) {
/*
** Parameters:
** Start starting point of outline-feature
** End ending point of outline-feature
** FeatureSet set to add outline-feature to
** Globals: none
** Operation: This routine computes the midpoint between Start and
** End to obtain the x,y position of the outline-feature. It
** also computes the direction from Start to End as the
** direction of the outline-feature and the distance from
** Start to End as the length of the outline-feature.
** This feature is then
** inserted into the next feature slot in FeatureSet.
** Return: none (results are placed in FeatureSet)
** Exceptions: none
** History: 11/13/90, DSJ, Created.
*/
FEATURE Feature; FEATURE Feature;
Feature = NewFeature(&OutlineFeatDesc); Feature = NewFeature(&OutlineFeatDesc);
@ -108,21 +107,20 @@ void AddOutlineFeatureToSet(FPOINT *Start,
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
void ConvertToOutlineFeatures(MFOUTLINE Outline, FEATURE_SET FeatureSet) { /**
/* * This routine steps converts each section in the specified
** Parameters: * outline to a feature described by its x,y position, length
** Outline outline to extract outline-features from * and angle.
** FeatureSet set of features to add outline-features to * @param Outline outline to extract outline-features from
** Globals: none * @param FeatureSet set of features to add outline-features to
** Operation: * @return none (results are returned in FeatureSet)
** This routine steps converts each section in the specified * @note Globals: none
** outline to a feature described by its x,y position, length * @note Exceptions: none
** and angle. * @note History:
** Return: none (results are returned in FeatureSet) * - 11/13/90, DSJ, Created.
** Exceptions: none * - 5/24/91, DSJ, Added hidden edge capability.
** History: 11/13/90, DSJ, Created.
** 5/24/91, DSJ, Added hidden edge capability.
*/ */
void ConvertToOutlineFeatures(MFOUTLINE Outline, FEATURE_SET FeatureSet) {
MFOUTLINE Next; MFOUTLINE Next;
MFOUTLINE First; MFOUTLINE First;
FPOINT FeatureStart; FPOINT FeatureStart;
@ -152,19 +150,18 @@ void ConvertToOutlineFeatures(MFOUTLINE Outline, FEATURE_SET FeatureSet) {
/*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*/
void NormalizeOutlineX(FEATURE_SET FeatureSet) { /**
/* * This routine computes the weighted average x position
** Parameters: * over all of the outline-features in FeatureSet and then
** FeatureSet outline-features to be normalized * renormalizes the outline-features to force this average
** Globals: none * to be the x origin (i.e. x=0).
** Operation: This routine computes the weighted average x position * @param FeatureSet outline-features to be normalized
** over all of the outline-features in FeatureSet and then * @eturn none (FeatureSet is changed)
** renormalizes the outline-features to force this average * @note Globals: none
** to be the x origin (i.e. x=0). * @note Exceptions: none
** Return: none (FeatureSet is changed) * @note History: 11/13/90, DSJ, Created.
** Exceptions: none
** History: 11/13/90, DSJ, Created.
*/ */
void NormalizeOutlineX(FEATURE_SET FeatureSet) {
int i; int i;
FEATURE Feature; FEATURE Feature;
FLOAT32 Length; FLOAT32 Length;