#include <blobbox.h>

Inheritance diagram for TO_ROW:

Public Member Functions
	TO_ROW ()

	TO_ROW (BLOBNBOX *blob, float top, float bottom, float row_size)

float	max_y () const

float	min_y () const

float	mean_y () const

float	initial_min_y () const

float	line_m () const

float	line_c () const

float	line_error () const

float	parallel_c () const

float	parallel_error () const

float	believability () const

float	intercept () const

void	add_blob (BLOBNBOX *blob, float top, float bottom, float row_size)

void	insert_blob (BLOBNBOX *blob)

BLOBNBOX_LIST *	blob_list ()

void	set_line (float new_m, float new_c, float new_error)

void	set_parallel_line (float gradient, float new_c, float new_error)

void	set_limits (float new_min, float new_max)

void	compute_vertical_projection ()

bool	rep_chars_marked () const

void	clear_rep_chars_marked ()

int	num_repeated_sets () const

void	set_num_repeated_sets (int num_sets)

Public Member Functions inherited from ELIST2_LINK
	ELIST2_LINK ()

	ELIST2_LINK (const ELIST2_LINK &)

void	operator= (const ELIST2_LINK &)

Public Attributes
BOOL8	merged

BOOL8	all_caps

BOOL8	used_dm_model

inT16	projection_left

inT16	projection_right

PITCH_TYPE	pitch_decision

float	fixed_pitch

float	fp_space

float	fp_nonsp

float	pr_space

float	pr_nonsp

float	spacing

float	xheight

int	xheight_evidence

float	ascrise

float	descdrop

float	body_size

inT32	min_space

inT32	max_nonspace

inT32	space_threshold

float	kern_size

float	space_size

WERD_LIST	rep_words

ICOORDELT_LIST	char_cells

QSPLINE	baseline

STATS	projection

Static Public Attributes
static const int	kErrorWeight = 3

Detailed Description

Definition at line 516 of file blobbox.h.

Constructor & Destructor Documentation

TO_ROW::TO_ROW ( )

inline

Definition at line 521 of file blobbox.h.

              {
       clear();
     }                            //empty

TO_ROW::TO_ROW	(	BLOBNBOX *	blob,
		float	top,
		float	bottom,
		float	row_size
	)

Definition at line 638 of file blobbox.cpp.

   {
   clear();
   y_min = bottom;
   y_max = top;
   initial_y_min = bottom;
 
   float diff;                    //in size
   BLOBNBOX_IT it = &blobs;       //list of blobs
 
   it.add_to_end (blob);
   diff = top - bottom - row_size;
   if (diff > 0) {
     y_max -= diff / 2;
     y_min += diff / 2;
   }
                                  //very small object
   else if ((top - bottom) * 3 < row_size) {
     diff = row_size / 3 + bottom - top;
     y_max += diff / 2;
     y_min -= diff / 2;
   }
 }

Member Function Documentation

void TO_ROW::add_blob	(	BLOBNBOX *	blob,
		float	top,
		float	bottom,
		float	row_size
	)

Definition at line 673 of file blobbox.cpp.

                        {
   float allowed;                 //allowed expansion
   float available;               //expansion
   BLOBNBOX_IT it = &blobs;       //list of blobs
 
   it.add_to_end (blob);
   allowed = row_size + y_min - y_max;
   if (allowed > 0) {
     available = top > y_max ? top - y_max : 0;
     if (bottom < y_min)
                                  //total available
         available += y_min - bottom;
     if (available > 0) {
       available += available;    //do it gradually
       if (available < allowed)
         available = allowed;
       if (bottom < y_min)
         y_min -= (y_min - bottom) * allowed / available;
       if (top > y_max)
         y_max += (top - y_max) * allowed / available;
     }
   }
 }

float TO_ROW::believability ( ) const

inline

Definition at line 557 of file blobbox.h.

                                 {  //baseline goodness
       return credibility;
     }

BLOBNBOX_LIST* TO_ROW::blob_list ( )

inline

Definition at line 571 of file blobbox.h.

                                {  //get list
       return &blobs;
     }

void TO_ROW::clear_rep_chars_marked ( )

inline

Definition at line 606 of file blobbox.h.

                                   {
       num_repeated_sets_ = -1;
     }

void TO_ROW::compute_vertical_projection ( )

Definition at line 736 of file blobbox.cpp.

                                          {  //project whole row
   TBOX row_box;                   //bound of row
   BLOBNBOX *blob;                //current blob
   TBOX blob_box;                  //bounding box
   BLOBNBOX_IT blob_it = blob_list ();
 
   if (blob_it.empty ())
     return;
   row_box = blob_it.data ()->bounding_box ();
   for (blob_it.mark_cycle_pt (); !blob_it.cycled_list (); blob_it.forward ())
     row_box += blob_it.data ()->bounding_box ();
 
   projection.set_range (row_box.left () - PROJECTION_MARGIN,
     row_box.right () + PROJECTION_MARGIN);
   projection_left = row_box.left () - PROJECTION_MARGIN;
   projection_right = row_box.right () + PROJECTION_MARGIN;
   for (blob_it.mark_cycle_pt (); !blob_it.cycled_list (); blob_it.forward ()) {
     blob = blob_it.data();
     if (blob->cblob() != NULL)
       vertical_cblob_projection(blob->cblob(), &projection);
   }
 }

float TO_ROW::initial_min_y ( ) const

inline

Definition at line 539 of file blobbox.h.

                                 {
       return initial_y_min;
     }

void TO_ROW::insert_blob ( BLOBNBOX * blob )

Definition at line 709 of file blobbox.cpp.

                           {
   BLOBNBOX_IT it = &blobs;       //list of blobs
 
   if (it.empty ())
     it.add_before_then_move (blob);
   else {
     it.mark_cycle_pt ();
     while (!it.cycled_list ()
       && it.data ()->bounding_box ().left () <=
       blob->bounding_box ().left ())
       it.forward ();
     if (it.cycled_list ())
       it.add_to_end (blob);
     else
       it.add_before_stay_put (blob);
   }
 }

float TO_ROW::intercept ( ) const

inline

Definition at line 560 of file blobbox.h.

                             {  //real parallel_c
       return y_origin;
     }

float TO_ROW::line_c ( ) const

inline

Definition at line 545 of file blobbox.h.

                          {
       return c;
     }

float TO_ROW::line_error ( ) const

inline

Definition at line 548 of file blobbox.h.

                              {
       return error;
     }

float TO_ROW::line_m ( ) const

inline

Definition at line 542 of file blobbox.h.

                          {  //access to line fit
       return m;
     }

float TO_ROW::max_y ( ) const

inline

Definition at line 530 of file blobbox.h.

                         {  //access function
       return y_max;
     }

float TO_ROW::mean_y ( ) const

inline

Definition at line 536 of file blobbox.h.

                          {
       return (y_min + y_max) / 2.0f;
     }

float TO_ROW::min_y ( ) const

inline

Definition at line 533 of file blobbox.h.

                         {
       return y_min;
     }

int TO_ROW::num_repeated_sets ( ) const

inline

Definition at line 609 of file blobbox.h.

                                   {
       return num_repeated_sets_;
     }

float TO_ROW::parallel_c ( ) const

inline

Definition at line 551 of file blobbox.h.

                              {
       return para_c;
     }

float TO_ROW::parallel_error ( ) const

inline

Definition at line 554 of file blobbox.h.

                                  {
       return para_error;
     }

bool TO_ROW::rep_chars_marked ( ) const

inline

Definition at line 603 of file blobbox.h.

                                   {
       return num_repeated_sets_ != -1;
     }

void TO_ROW::set_limits	(	float	new_min,
		float	new_max
	)

inline

Definition at line 594 of file blobbox.h.

                                    {  //top of row
       y_min = new_min;
       y_max = new_max;
     }

void TO_ROW::set_line	(	float	new_m,
		float	new_c,
		float	new_error
	)

inline

Definition at line 575 of file blobbox.h.

                                    {
       m = new_m;
       c = new_c;
       error = new_error;
     }

void TO_ROW::set_num_repeated_sets ( int num_sets )

inline

Definition at line 612 of file blobbox.h.

                                              {
       num_repeated_sets_ = num_sets;
     }

void TO_ROW::set_parallel_line	(	float	gradient,
		float	new_c,
		float	new_error
	)

inline

Definition at line 583 of file blobbox.h.

                                             {
       para_c = new_c;
       para_error = new_error;
       credibility =
         (float) (blobs.length () - kErrorWeight * new_error);
       y_origin = (float) (new_c / sqrt (1 + gradient * gradient));
       //real intercept
     }

Member Data Documentation

BOOL8 TO_ROW::all_caps

Definition at line 618 of file blobbox.h.

float TO_ROW::ascrise

Definition at line 631 of file blobbox.h.

QSPLINE TO_ROW::baseline

Definition at line 642 of file blobbox.h.

float TO_ROW::body_size

Definition at line 633 of file blobbox.h.

ICOORDELT_LIST TO_ROW::char_cells

Definition at line 641 of file blobbox.h.

float TO_ROW::descdrop

Definition at line 632 of file blobbox.h.

float TO_ROW::fixed_pitch

Definition at line 623 of file blobbox.h.

float TO_ROW::fp_nonsp

Definition at line 625 of file blobbox.h.

float TO_ROW::fp_space

Definition at line 624 of file blobbox.h.

float TO_ROW::kern_size

Definition at line 638 of file blobbox.h.

const int TO_ROW::kErrorWeight = 3

static

Definition at line 519 of file blobbox.h.

inT32 TO_ROW::max_nonspace

Definition at line 636 of file blobbox.h.

BOOL8 TO_ROW::merged

Definition at line 617 of file blobbox.h.

inT32 TO_ROW::min_space

Definition at line 635 of file blobbox.h.

PITCH_TYPE TO_ROW::pitch_decision

Definition at line 622 of file blobbox.h.

float TO_ROW::pr_nonsp

Definition at line 627 of file blobbox.h.

float TO_ROW::pr_space

Definition at line 626 of file blobbox.h.

STATS TO_ROW::projection

Definition at line 643 of file blobbox.h.

inT16 TO_ROW::projection_left

Definition at line 620 of file blobbox.h.

inT16 TO_ROW::projection_right

Definition at line 621 of file blobbox.h.

WERD_LIST TO_ROW::rep_words

Definition at line 640 of file blobbox.h.

float TO_ROW::space_size

Definition at line 639 of file blobbox.h.

inT32 TO_ROW::space_threshold

Definition at line 637 of file blobbox.h.

float TO_ROW::spacing

Definition at line 628 of file blobbox.h.

BOOL8 TO_ROW::used_dm_model

Definition at line 619 of file blobbox.h.

float TO_ROW::xheight

Definition at line 629 of file blobbox.h.

int TO_ROW::xheight_evidence

Definition at line 630 of file blobbox.h.

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

/home/abuild/rpmbuild/BUILD/tesseract-ocr-3.02.02/ccstruct/blobbox.h
/home/abuild/rpmbuild/BUILD/tesseract-ocr-3.02.02/ccstruct/blobbox.cpp

Public Member Functions

Public Attributes

Static Public Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation