#include <equationdetectbase.h>

Inheritance diagram for tesseract::EquationDetectBase:

Public Member Functions
	EquationDetectBase ()=default

virtual	~EquationDetectBase ()

virtual int	LabelSpecialText (TO_BLOCK *to_block)=0

virtual int	FindEquationParts (ColPartitionGrid part_grid, ColPartitionSet *best_columns)=0

Static Public Member Functions
static void	RenderSpecialText (Image pix, BLOBNBOX *blob)

Detailed Description

Definition at line 35 of file equationdetectbase.h.

Constructor & Destructor Documentation

◆ EquationDetectBase()

tesseract::EquationDetectBase::EquationDetectBase ( )

default

◆ ~EquationDetectBase()

tesseract::EquationDetectBase::~EquationDetectBase ( )

virtualdefault

Member Function Documentation

◆ FindEquationParts()

virtual int tesseract::EquationDetectBase::FindEquationParts	(	ColPartitionGrid *	part_grid,
		ColPartitionSet **	best_columns
	)

pure virtual

Implemented in tesseract::EquationDetect.

◆ LabelSpecialText()

virtual int tesseract::EquationDetectBase::LabelSpecialText ( TO_BLOCK * to_block )

pure virtual

Implemented in tesseract::EquationDetect.

◆ RenderSpecialText()

void tesseract::EquationDetectBase::RenderSpecialText	(	Image	pix,
		BLOBNBOX *	blob
	)

static

Definition at line 37 of file equationdetectbase.cpp.

                                                                    {
  ASSERT_HOST(pix != nullptr && pixGetDepth(pix) == 32 && blob != nullptr);
  const TBOX &tbox = blob->bounding_box();
  int height = pixGetHeight(pix);
  const int box_width = 5;
 
  // Coordinate translation: tesseract use left bottom as the original, while
  // leptonica uses left top as the original.
  Box *box = boxCreate(tbox.left(), height - tbox.top(), tbox.width(), tbox.height());
  switch (blob->special_text_type()) {
    case BSTT_MATH: // Red box.
      pixRenderBoxArb(pix, box, box_width, 255, 0, 0);
      break;
    case BSTT_DIGIT: // cyan box.
      pixRenderBoxArb(pix, box, box_width, 0, 255, 255);
      break;
    case BSTT_ITALIC: // Green box.
      pixRenderBoxArb(pix, box, box_width, 0, 255, 0);
      break;
    case BSTT_UNCLEAR: // blue box.
      pixRenderBoxArb(pix, box, box_width, 0, 255, 0);
      break;
    case BSTT_NONE:
    default:
      // yellow box.
      pixRenderBoxArb(pix, box, box_width, 255, 255, 0);
      break;
  }
  boxDestroy(&box);
}

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

/media/home/debian/src/github/tesseract-ocr/tesseract/src/textord/equationdetectbase.h
/media/home/debian/src/github/tesseract-ocr/tesseract/src/textord/equationdetectbase.cpp

Public Member Functions

Static Public Member Functions