Tesseract  3.02
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Macros Groups Pages
tesseract::EquationDetectBase Class Reference

#include <equationdetectbase.h>

Inheritance diagram for tesseract::EquationDetectBase:
tesseract::EquationDetect

List of all members.

Public Member Functions

 EquationDetectBase ()
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 (Pix *pix, BLOBNBOX *blob)

Detailed Description

Definition at line 32 of file equationdetectbase.h.


Constructor & Destructor Documentation

tesseract::EquationDetectBase::EquationDetectBase ( )

Definition at line 26 of file equationdetectbase.cpp.

{
}
tesseract::EquationDetectBase::~EquationDetectBase ( )
virtual

Definition at line 29 of file equationdetectbase.cpp.

{
}

Member Function Documentation

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

Implemented in tesseract::EquationDetect.

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

Implemented in tesseract::EquationDetect.

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

Definition at line 32 of file equationdetectbase.cpp.

{
ASSERT_HOST(pix != NULL && pixGetDepth(pix) == 32 && blob != NULL);
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: