tesseract-ocr/wordrec/makechop.cpp File Reference

#include "makechop.h"
#include "blobs.h"
#include "render.h"
#include "structures.h"
#include <assert.h>
#include <unistd.h>

Go to the source code of this file.

Functions
void	apply_seam (TBLOB *blob, TBLOB *other_blob, bool italic_blob, SEAM *seam)
void	form_two_blobs (TBLOB *blob, TBLOB *other_blob, bool italic_blob, const TPOINT &location)
void	make_double_split (TBLOB *blob, TBLOB *other_blob, bool italic_blob, SEAM *seam)
void	make_single_split (TESSLINE *outlines, SPLIT *split)
void	make_split_blobs (TBLOB *blob, TBLOB *other_blob, bool italic_blob, SEAM *seam)
void	make_triple_split (TBLOB *blob, TBLOB *other_blob, bool italic_blob, SEAM *seam)
void	undo_seam (TBLOB *blob, TBLOB *other_blob, SEAM *seam)
void	undo_single_split (TBLOB *blob, SPLIT *split)

---

Function Documentation

void apply_seam	(	TBLOB *	blob,
		TBLOB *	other_blob,
		bool	italic_blob,
		SEAM *	seam
	)

Definition at line 52 of file makechop.cpp.

                                                                              {
  if (seam->split1 == NULL) {
    divide_blobs(blob, other_blob, italic_blob, seam->location);
  }
  else if (seam->split2 == NULL) {
    make_split_blobs(blob, other_blob, italic_blob, seam);
  }
  else if (seam->split3 == NULL) {
    make_double_split(blob, other_blob, italic_blob, seam);
  }
  else {
    make_triple_split(blob, other_blob, italic_blob, seam);
  }
}

void form_two_blobs	(	TBLOB *	blob,
		TBLOB *	other_blob,
		bool	italic_blob,
		const TPOINT &	location
	)

Definition at line 74 of file makechop.cpp.

                                            {
  setup_blob_outlines(blob);

  divide_blobs(blob, other_blob, italic_blob, location);

  eliminate_duplicate_outlines(blob);
  eliminate_duplicate_outlines(other_blob);

  correct_blob_order(blob, other_blob);
}

void make_double_split	(	TBLOB *	blob,
		TBLOB *	other_blob,
		bool	italic_blob,
		SEAM *	seam
	)

Definition at line 93 of file makechop.cpp.

                                   {
  make_single_split(blob->outlines, seam->split1);
  make_single_split(blob->outlines, seam->split2);
  form_two_blobs(blob, other_blob, italic_blob, seam->location);
}

void make_single_split	(	TESSLINE *	outlines,
		SPLIT *	split
	)

Definition at line 107 of file makechop.cpp.

                                                         {
  assert (outlines != NULL);

  split_outline (split->point1, split->point2);

  while (outlines->next != NULL)
    outlines = outlines->next;

  outlines->next = new TESSLINE;
  outlines->next->loop = split->point1;
  outlines->next->ComputeBoundingBox();

  outlines = outlines->next;

  outlines->next = new TESSLINE;
  outlines->next->loop = split->point2;
  outlines->next->ComputeBoundingBox();

  outlines->next->next = NULL;
}

void make_split_blobs	(	TBLOB *	blob,
		TBLOB *	other_blob,
		bool	italic_blob,
		SEAM *	seam
	)

Definition at line 135 of file makechop.cpp.

                                  {
  make_single_split(blob->outlines, seam->split1);

  form_two_blobs (blob, other_blob, italic_blob, seam->location);
}

void make_triple_split	(	TBLOB *	blob,
		TBLOB *	other_blob,
		bool	italic_blob,
		SEAM *	seam
	)

Definition at line 151 of file makechop.cpp.

                                   {
  make_single_split(blob->outlines, seam->split1);
  make_single_split(blob->outlines, seam->split2);
  make_single_split(blob->outlines, seam->split3);

  form_two_blobs(blob, other_blob, italic_blob, seam->location);
}

void undo_seam	(	TBLOB *	blob,
		TBLOB *	other_blob,
		SEAM *	seam
	)

Definition at line 168 of file makechop.cpp.

                                                           {
  TESSLINE *outline;

  if (!seam)
    return;                      /* Append other blob outlines */
  if (blob->outlines == NULL) {
    blob->outlines = other_blob->outlines;
    other_blob->outlines = NULL;
  }

  outline = blob->outlines;
  while (outline->next)
    outline = outline->next;
  outline->next = other_blob->outlines;
  other_blob->outlines = NULL;
  delete other_blob;

  if (seam->split1 == NULL) {
  }
  else if (seam->split2 == NULL) {
    undo_single_split (blob, seam->split1);
  }
  else if (seam->split3 == NULL) {
    undo_single_split (blob, seam->split1);
    undo_single_split (blob, seam->split2);
  }
  else {
    undo_single_split (blob, seam->split3);
    undo_single_split (blob, seam->split2);
    undo_single_split (blob, seam->split1);
  }

  setup_blob_outlines(blob);
  eliminate_duplicate_outlines(blob);
}

void undo_single_split	(	TBLOB *	blob,
		SPLIT *	split
	)

Definition at line 211 of file makechop.cpp.

                                                  {
  TESSLINE *outline1;
  TESSLINE *outline2;
  /* Modify edge points */
  unsplit_outlines (split->point1, split->point2);

  outline1 = new TESSLINE;
  outline1->next = blob->outlines;
  blob->outlines = outline1;
  outline1->loop = split->point1;

  outline2 = new TESSLINE;
  outline2->next = blob->outlines;
  blob->outlines = outline2;
  outline2->loop = split->point2;
}