tesseract 4.1.1
Loading...
Searching...
No Matches
TO_ROW Class Reference

#include <blobbox.h>

Inheritance diagram for TO_ROW:
ELIST2_LINK

Public Member Functions

 TO_ROW ()
 
 TO_ROW (BLOBNBOX *blob, float top, float bottom, float row_size)
 
void print () const
 
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

bool merged = false
 
bool all_caps
 
bool used_dm_model
 
int16_t projection_left
 
int16_t 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_t min_space
 
int32_t max_nonspace
 
int32_t 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 544 of file blobbox.h.

Constructor & Destructor Documentation

◆ TO_ROW() [1/2]

TO_ROW::TO_ROW ( )
inline

Definition at line 549 of file blobbox.h.

549 {
550 clear();
551 } //empty

◆ TO_ROW() [2/2]

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

Definition at line 689 of file blobbox.cpp.

694 {
695 clear();
696 y_min = bottom;
697 y_max = top;
698 initial_y_min = bottom;
699
700 float diff; //in size
701 BLOBNBOX_IT it = &blobs; //list of blobs
702
703 it.add_to_end (blob);
704 diff = top - bottom - row_size;
705 if (diff > 0) {
706 y_max -= diff / 2;
707 y_min += diff / 2;
708 }
709 //very small object
710 else if ((top - bottom) * 3 < row_size) {
711 diff = row_size / 3 + bottom - top;
712 y_max += diff / 2;
713 y_min -= diff / 2;
714 }
715}

Member Function Documentation

◆ add_blob()

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

Definition at line 733 of file blobbox.cpp.

738 {
739 float allowed; //allowed expansion
740 float available; //expansion
741 BLOBNBOX_IT it = &blobs; //list of blobs
742
743 it.add_to_end (blob);
744 allowed = row_size + y_min - y_max;
745 if (allowed > 0) {
746 available = top > y_max ? top - y_max : 0;
747 if (bottom < y_min)
748 //total available
749 available += y_min - bottom;
750 if (available > 0) {
751 available += available; //do it gradually
752 if (available < allowed)
753 available = allowed;
754 if (bottom < y_min)
755 y_min -= (y_min - bottom) * allowed / available;
756 if (top > y_max)
757 y_max += (top - y_max) * allowed / available;
758 }
759 }
760}

◆ believability()

float TO_ROW::believability ( ) const
inline

Definition at line 586 of file blobbox.h.

586 { //baseline goodness
587 return credibility;
588 }

◆ blob_list()

BLOBNBOX_LIST * TO_ROW::blob_list ( )
inline

Definition at line 600 of file blobbox.h.

600 { //get list
601 return &blobs;
602 }

◆ clear_rep_chars_marked()

void TO_ROW::clear_rep_chars_marked ( )
inline

Definition at line 634 of file blobbox.h.

634 {
635 num_repeated_sets_ = -1;
636 }

◆ compute_vertical_projection()

void TO_ROW::compute_vertical_projection ( )

Definition at line 796 of file blobbox.cpp.

796 { //project whole row
797 TBOX row_box; //bound of row
798 BLOBNBOX *blob; //current blob
799 TBOX blob_box; //bounding box
800 BLOBNBOX_IT blob_it = blob_list ();
801
802 if (blob_it.empty ())
803 return;
804 row_box = blob_it.data ()->bounding_box ();
805 for (blob_it.mark_cycle_pt (); !blob_it.cycled_list (); blob_it.forward ())
806 row_box += blob_it.data ()->bounding_box ();
807
809 row_box.right () + PROJECTION_MARGIN);
812 for (blob_it.mark_cycle_pt (); !blob_it.cycled_list (); blob_it.forward ()) {
813 blob = blob_it.data();
814 if (blob->cblob() != nullptr)
816 }
817}
#define PROJECTION_MARGIN
Definition: blobbox.cpp:37
void vertical_cblob_projection(C_BLOB *blob, STATS *stats)
Definition: blobbox.cpp:868
C_BLOB * cblob() const
Definition: blobbox.h:268
int16_t projection_left
Definition: blobbox.h:648
STATS projection
Definition: blobbox.h:671
int16_t projection_right
Definition: blobbox.h:649
BLOBNBOX_LIST * blob_list()
Definition: blobbox.h:600
Definition: rect.h:34
int16_t left() const
Definition: rect.h:72
int16_t right() const
Definition: rect.h:79
bool set_range(int32_t min_bucket_value, int32_t max_bucket_value_plus_1)
Definition: statistc.cpp:56

◆ initial_min_y()

float TO_ROW::initial_min_y ( ) const
inline

Definition at line 568 of file blobbox.h.

568 {
569 return initial_y_min;
570 }

◆ insert_blob()

void TO_ROW::insert_blob ( BLOBNBOX blob)

Definition at line 769 of file blobbox.cpp.

771 {
772 BLOBNBOX_IT it = &blobs; //list of blobs
773
774 if (it.empty ())
775 it.add_before_then_move (blob);
776 else {
777 it.mark_cycle_pt ();
778 while (!it.cycled_list ()
779 && it.data ()->bounding_box ().left () <=
780 blob->bounding_box ().left ())
781 it.forward ();
782 if (it.cycled_list ())
783 it.add_to_end (blob);
784 else
785 it.add_before_stay_put (blob);
786 }
787}
const TBOX & bounding_box() const
Definition: blobbox.h:230

◆ intercept()

float TO_ROW::intercept ( ) const
inline

Definition at line 589 of file blobbox.h.

589 { //real parallel_c
590 return y_origin;
591 }

◆ line_c()

float TO_ROW::line_c ( ) const
inline

Definition at line 574 of file blobbox.h.

574 {
575 return c;
576 }

◆ line_error()

float TO_ROW::line_error ( ) const
inline

Definition at line 577 of file blobbox.h.

577 {
578 return error;
579 }

◆ line_m()

float TO_ROW::line_m ( ) const
inline

Definition at line 571 of file blobbox.h.

571 { //access to line fit
572 return m;
573 }

◆ max_y()

float TO_ROW::max_y ( ) const
inline

Definition at line 559 of file blobbox.h.

559 { //access function
560 return y_max;
561 }

◆ mean_y()

float TO_ROW::mean_y ( ) const
inline

Definition at line 565 of file blobbox.h.

565 {
566 return (y_min + y_max) / 2.0f;
567 }

◆ min_y()

float TO_ROW::min_y ( ) const
inline

Definition at line 562 of file blobbox.h.

562 {
563 return y_min;
564 }

◆ num_repeated_sets()

int TO_ROW::num_repeated_sets ( ) const
inline

Definition at line 637 of file blobbox.h.

637 {
638 return num_repeated_sets_;
639 }

◆ parallel_c()

float TO_ROW::parallel_c ( ) const
inline

Definition at line 580 of file blobbox.h.

580 {
581 return para_c;
582 }

◆ parallel_error()

float TO_ROW::parallel_error ( ) const
inline

Definition at line 583 of file blobbox.h.

583 {
584 return para_error;
585 }

◆ print()

void TO_ROW::print ( ) const

Definition at line 717 of file blobbox.cpp.

717 {
718 tprintf("pitch=%d, fp=%g, fps=%g, fpns=%g, prs=%g, prns=%g,"
719 " spacing=%g xh=%g y_origin=%g xev=%d, asc=%g, desc=%g,"
720 " body=%g, minsp=%d maxnsp=%d, thr=%d kern=%g sp=%g\n",
724 space_size);
725}
DLLSYM void tprintf(const char *format,...)
Definition: tprintf.cpp:35
float fixed_pitch
Definition: blobbox.h:651
float pr_space
Definition: blobbox.h:654
float body_size
Definition: blobbox.h:661
float pr_nonsp
Definition: blobbox.h:655
float spacing
Definition: blobbox.h:656
int xheight_evidence
Definition: blobbox.h:658
int32_t space_threshold
Definition: blobbox.h:665
float xheight
Definition: blobbox.h:657
PITCH_TYPE pitch_decision
Definition: blobbox.h:650
int32_t max_nonspace
Definition: blobbox.h:664
float fp_nonsp
Definition: blobbox.h:653
float kern_size
Definition: blobbox.h:666
float fp_space
Definition: blobbox.h:652
float descdrop
Definition: blobbox.h:660
float ascrise
Definition: blobbox.h:659
int32_t min_space
Definition: blobbox.h:663
float space_size
Definition: blobbox.h:667

◆ rep_chars_marked()

bool TO_ROW::rep_chars_marked ( ) const
inline

Definition at line 631 of file blobbox.h.

631 {
632 return num_repeated_sets_ != -1;
633 }

◆ set_limits()

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

Definition at line 622 of file blobbox.h.

624 { //top of row
625 y_min = new_min;
626 y_max = new_max;
627 }

◆ set_line()

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

Definition at line 604 of file blobbox.h.

607 {
608 m = new_m;
609 c = new_c;
610 error = new_error;
611 }

◆ set_num_repeated_sets()

void TO_ROW::set_num_repeated_sets ( int  num_sets)
inline

Definition at line 640 of file blobbox.h.

640 {
641 num_repeated_sets_ = num_sets;
642 }

◆ set_parallel_line()

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

Definition at line 612 of file blobbox.h.

615 {
616 para_c = new_c;
617 para_error = new_error;
618 credibility = blobs.length() - kErrorWeight * new_error;
619 y_origin = new_c / std::sqrt(1 + gradient * gradient);
620 //real intercept
621 }
static const int kErrorWeight
Definition: blobbox.h:547

Member Data Documentation

◆ all_caps

bool TO_ROW::all_caps

Definition at line 646 of file blobbox.h.

◆ ascrise

float TO_ROW::ascrise

Definition at line 659 of file blobbox.h.

◆ baseline

QSPLINE TO_ROW::baseline

Definition at line 670 of file blobbox.h.

◆ body_size

float TO_ROW::body_size

Definition at line 661 of file blobbox.h.

◆ char_cells

ICOORDELT_LIST TO_ROW::char_cells

Definition at line 669 of file blobbox.h.

◆ descdrop

float TO_ROW::descdrop

Definition at line 660 of file blobbox.h.

◆ fixed_pitch

float TO_ROW::fixed_pitch

Definition at line 651 of file blobbox.h.

◆ fp_nonsp

float TO_ROW::fp_nonsp

Definition at line 653 of file blobbox.h.

◆ fp_space

float TO_ROW::fp_space

Definition at line 652 of file blobbox.h.

◆ kern_size

float TO_ROW::kern_size

Definition at line 666 of file blobbox.h.

◆ kErrorWeight

const int TO_ROW::kErrorWeight = 3
static

Definition at line 547 of file blobbox.h.

◆ max_nonspace

int32_t TO_ROW::max_nonspace

Definition at line 664 of file blobbox.h.

◆ merged

bool TO_ROW::merged = false

Definition at line 645 of file blobbox.h.

◆ min_space

int32_t TO_ROW::min_space

Definition at line 663 of file blobbox.h.

◆ pitch_decision

PITCH_TYPE TO_ROW::pitch_decision

Definition at line 650 of file blobbox.h.

◆ pr_nonsp

float TO_ROW::pr_nonsp

Definition at line 655 of file blobbox.h.

◆ pr_space

float TO_ROW::pr_space

Definition at line 654 of file blobbox.h.

◆ projection

STATS TO_ROW::projection

Definition at line 671 of file blobbox.h.

◆ projection_left

int16_t TO_ROW::projection_left

Definition at line 648 of file blobbox.h.

◆ projection_right

int16_t TO_ROW::projection_right

Definition at line 649 of file blobbox.h.

◆ rep_words

WERD_LIST TO_ROW::rep_words

Definition at line 668 of file blobbox.h.

◆ space_size

float TO_ROW::space_size

Definition at line 667 of file blobbox.h.

◆ space_threshold

int32_t TO_ROW::space_threshold

Definition at line 665 of file blobbox.h.

◆ spacing

float TO_ROW::spacing

Definition at line 656 of file blobbox.h.

◆ used_dm_model

bool TO_ROW::used_dm_model

Definition at line 647 of file blobbox.h.

◆ xheight

float TO_ROW::xheight

Definition at line 657 of file blobbox.h.

◆ xheight_evidence

int TO_ROW::xheight_evidence

Definition at line 658 of file blobbox.h.


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