tesseract::AlignedBlobParams Struct Reference

#include <alignedblob.h>

Public Member Functions
	AlignedBlobParams (int vertical_x, int vertical_y, int height, int v_gap_multiple, int min_gutter_width, int resolution, TabAlignment alignment0)
	AlignedBlobParams (int vertical_x, int vertical_y, int width)
void	set_vertical (int vertical_x, int vertical_y)

Public Attributes
double	gutter_fraction
bool	right_tab
bool	ragged
TabAlignment	alignment
TabType	confirmed_type
int	max_v_gap
int	min_gutter
int	l_align_tolerance
int	r_align_tolerance
int	min_points
int	min_length
ICOORD	vertical

Detailed Description

Definition at line 44 of file alignedblob.h.

Constructor & Destructor Documentation

tesseract::AlignedBlobParams::AlignedBlobParams	(	int	vertical_x,
		int	vertical_y,
		int	height,
		int	v_gap_multiple,
		int	min_gutter_width,
		int	resolution,
		TabAlignment	alignment0
	)

Definition at line 93 of file alignedblob.cpp.

  : right_tab(align0 == TA_RIGHT_RAGGED || align0 == TA_RIGHT_ALIGNED),
    ragged(align0 == TA_LEFT_RAGGED || align0 == TA_RIGHT_RAGGED),
    alignment(align0),
    confirmed_type(TT_CONFIRMED),
    min_length(0) {
  // Set the tolerances according to the type of line sought.
  // For tab search, these are based on the image resolution for most, or
  // the height of the starting blob for the maximum vertical gap.
  max_v_gap = height * v_gap_multiple;
  if (ragged) {
    // In the case of a ragged edge, we are much more generous with the
    // inside alignment fraction, but also require a much bigger gutter.
    gutter_fraction = kRaggedGapFraction;
    if (alignment == TA_RIGHT_RAGGED) {
      l_align_tolerance = static_cast<int>(resolution * kRaggedFraction + 0.5);
      r_align_tolerance = static_cast<int>(resolution * kAlignedFraction + 0.5);
    } else {
      l_align_tolerance = static_cast<int>(resolution * kAlignedFraction + 0.5);
      r_align_tolerance = static_cast<int>(resolution * kRaggedFraction + 0.5);
    }
    min_points = kMinRaggedTabs;
  } else {
    gutter_fraction = kAlignedGapFraction;
    l_align_tolerance = static_cast<int>(resolution * kAlignedFraction + 0.5);
    r_align_tolerance = static_cast<int>(resolution * kAlignedFraction + 0.5);
    min_points = kMinAlignedTabs;
  }
  min_gutter = static_cast<int>(height * gutter_fraction + 0.5);
  if (min_gutter < min_gutter_width)
    min_gutter = min_gutter_width;
  // Fit the vertical vector into an ICOORD, which is 16 bit.
  set_vertical(vertical_x, vertical_y);
}

tesseract::AlignedBlobParams::AlignedBlobParams	(	int	vertical_x,
		int	vertical_y,
		int	width
	)

Definition at line 134 of file alignedblob.cpp.

  : gutter_fraction(0.0),
    right_tab(false),
    ragged(false),
    alignment(TA_SEPARATOR),
    confirmed_type(TT_VLINE),
    max_v_gap(kVLineSearchSize),
    min_gutter(kVLineGutter),
    min_points(1),
    min_length(kVLineMinLength) {
  // Compute threshold for left and right alignment.
  l_align_tolerance = MAX(kVLineAlignment, width);
  r_align_tolerance = MAX(kVLineAlignment, width);

  // Fit the vertical vector into an ICOORD, which is 16 bit.
  set_vertical(vertical_x, vertical_y);
}

Member Function Documentation

void tesseract::AlignedBlobParams::set_vertical	(	int	vertical_x,
		int	vertical_y
	)

Definition at line 154 of file alignedblob.cpp.

                                                                   {
  int factor = 1;
  if (vertical_y > MAX_INT16)
    factor = vertical_y / MAX_INT16 + 1;
  vertical.set_x(vertical_x / factor);
  vertical.set_y(vertical_y / factor);
}

Member Data Documentation

TabAlignment tesseract::AlignedBlobParams::alignment

Definition at line 66 of file alignedblob.h.

TabType tesseract::AlignedBlobParams::confirmed_type

Definition at line 67 of file alignedblob.h.

double tesseract::AlignedBlobParams::gutter_fraction

Definition at line 63 of file alignedblob.h.

int tesseract::AlignedBlobParams::l_align_tolerance

Definition at line 71 of file alignedblob.h.

int tesseract::AlignedBlobParams::max_v_gap

Definition at line 68 of file alignedblob.h.

int tesseract::AlignedBlobParams::min_gutter

Definition at line 69 of file alignedblob.h.

int tesseract::AlignedBlobParams::min_length

Definition at line 75 of file alignedblob.h.

int tesseract::AlignedBlobParams::min_points

Definition at line 74 of file alignedblob.h.

int tesseract::AlignedBlobParams::r_align_tolerance

Definition at line 72 of file alignedblob.h.

bool tesseract::AlignedBlobParams::ragged

Definition at line 65 of file alignedblob.h.

bool tesseract::AlignedBlobParams::right_tab

Definition at line 64 of file alignedblob.h.

ICOORD tesseract::AlignedBlobParams::vertical

Definition at line 77 of file alignedblob.h.

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

• textord/alignedblob.h
• textord/alignedblob.cpp