publictypes.h File Reference

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Namespaces
	tesseract

Enumerations
enum	PolyBlockType {   PT_UNKNOWN, PT_FLOWING_TEXT, PT_HEADING_TEXT, PT_PULLOUT_TEXT,   PT_EQUATION, PT_INLINE_EQUATION, PT_TABLE, PT_VERTICAL_TEXT,   PT_CAPTION_TEXT, PT_FLOWING_IMAGE, PT_HEADING_IMAGE, PT_PULLOUT_IMAGE,   PT_HORZ_LINE, PT_VERT_LINE, PT_NOISE, PT_COUNT }
enum	tesseract::Orientation { tesseract::ORIENTATION_PAGE_UP = 0, tesseract::ORIENTATION_PAGE_RIGHT = 1, tesseract::ORIENTATION_PAGE_DOWN = 2, tesseract::ORIENTATION_PAGE_LEFT = 3 }
enum	tesseract::WritingDirection { tesseract::WRITING_DIRECTION_LEFT_TO_RIGHT = 0, tesseract::WRITING_DIRECTION_RIGHT_TO_LEFT = 1, tesseract::WRITING_DIRECTION_TOP_TO_BOTTOM = 2 }
enum	tesseract::TextlineOrder { tesseract::TEXTLINE_ORDER_LEFT_TO_RIGHT = 0, tesseract::TEXTLINE_ORDER_RIGHT_TO_LEFT = 1, tesseract::TEXTLINE_ORDER_TOP_TO_BOTTOM = 2 }
enum	tesseract::PageSegMode {   tesseract::PSM_OSD_ONLY = 0, tesseract::PSM_AUTO_OSD = 1, tesseract::PSM_AUTO_ONLY = 2, tesseract::PSM_AUTO = 3,   tesseract::PSM_SINGLE_COLUMN = 4, tesseract::PSM_SINGLE_BLOCK_VERT_TEXT = 5, tesseract::PSM_SINGLE_BLOCK = 6, tesseract::PSM_SINGLE_LINE = 7,   tesseract::PSM_SINGLE_WORD = 8, tesseract::PSM_CIRCLE_WORD = 9, tesseract::PSM_SINGLE_CHAR = 10, tesseract::PSM_SPARSE_TEXT,   tesseract::PSM_SPARSE_TEXT_OSD = 12, tesseract::PSM_RAW_LINE = 13, tesseract::PSM_COUNT }
enum	tesseract::PageIteratorLevel {   tesseract::RIL_BLOCK, tesseract::RIL_PARA, tesseract::RIL_TEXTLINE, tesseract::RIL_WORD,   tesseract::RIL_SYMBOL }
enum	tesseract::ParagraphJustification { tesseract::JUSTIFICATION_UNKNOWN, tesseract::JUSTIFICATION_LEFT, tesseract::JUSTIFICATION_CENTER, tesseract::JUSTIFICATION_RIGHT }
enum	tesseract::OcrEngineMode {   tesseract::OEM_TESSERACT_ONLY, tesseract::OEM_LSTM_ONLY, tesseract::OEM_TESSERACT_LSTM_COMBINED, tesseract::OEM_DEFAULT,   tesseract::OEM_COUNT }

Functions
bool	PTIsLineType (PolyBlockType type)
bool	PTIsImageType (PolyBlockType type)
bool	PTIsTextType (PolyBlockType type)
bool	PTIsPulloutType (PolyBlockType type)
bool	tesseract::PSM_OSD_ENABLED (int pageseg_mode)
bool	tesseract::PSM_ORIENTATION_ENABLED (int pageseg_mode)
bool	tesseract::PSM_COL_FIND_ENABLED (int pageseg_mode)
bool	tesseract::PSM_SPARSE (int pageseg_mode)
bool	tesseract::PSM_BLOCK_FIND_ENABLED (int pageseg_mode)
bool	tesseract::PSM_LINE_FIND_ENABLED (int pageseg_mode)
bool	tesseract::PSM_WORD_FIND_ENABLED (int pageseg_mode)

Variables
constexpr int	kPointsPerInch = 72
constexpr int	kMinCredibleResolution = 70
constexpr int	kMaxCredibleResolution = 2400
constexpr int	kResolutionEstimationFactor = 10

Enumeration Type Documentation

PolyBlockType

enum PolyBlockType

Possible types for a POLY_BLOCK or ColPartition. Must be kept in sync with kPBColors in polyblk.cpp and PTIs*Type functions below, as well as kPolyBlockNames in layout_test.cc. Used extensively by ColPartition, and POLY_BLOCK.

Enumerator
PT_UNKNOWN
PT_FLOWING_TEXT
PT_HEADING_TEXT
PT_PULLOUT_TEXT
PT_EQUATION
PT_INLINE_EQUATION
PT_TABLE
PT_VERTICAL_TEXT
PT_CAPTION_TEXT
PT_FLOWING_IMAGE
PT_HEADING_IMAGE
PT_PULLOUT_IMAGE
PT_HORZ_LINE
PT_VERT_LINE
PT_NOISE
PT_COUNT

Definition at line 52 of file publictypes.h.

                   {
  PT_UNKNOWN,          // Type is not yet known. Keep as the first element.
  PT_FLOWING_TEXT,     // Text that lives inside a column.
  PT_HEADING_TEXT,     // Text that spans more than one column.
  PT_PULLOUT_TEXT,     // Text that is in a cross-column pull-out region.
  PT_EQUATION,         // Partition belonging to an equation region.
  PT_INLINE_EQUATION,  // Partition has inline equation.
  PT_TABLE,            // Partition belonging to a table region.
  PT_VERTICAL_TEXT,    // Text-line runs vertically.
  PT_CAPTION_TEXT,     // Text that belongs to an image.
  PT_FLOWING_IMAGE,    // Image that lives inside a column.
  PT_HEADING_IMAGE,    // Image that spans more than one column.
  PT_PULLOUT_IMAGE,    // Image that is in a cross-column pull-out region.
  PT_HORZ_LINE,        // Horizontal Line.
  PT_VERT_LINE,        // Vertical Line.
  PT_NOISE,            // Lies outside of any column.
  PT_COUNT
};

Function Documentation

PTIsImageType()

bool PTIsImageType ( PolyBlockType  type )

inline

Returns true if PolyBlockType is of image type

Definition at line 76 of file publictypes.h.

                                              {
  return type == PT_FLOWING_IMAGE || type == PT_HEADING_IMAGE ||
         type == PT_PULLOUT_IMAGE;
}

PTIsLineType()

bool PTIsLineType ( PolyBlockType  type )

inline

Returns true if PolyBlockType is of horizontal line type

Definition at line 72 of file publictypes.h.

                                             {
  return type == PT_HORZ_LINE || type == PT_VERT_LINE;
}

PTIsPulloutType()

bool PTIsPulloutType ( PolyBlockType  type )

inline

Definition at line 88 of file publictypes.h.

                                                {
  return type == PT_PULLOUT_IMAGE || type == PT_PULLOUT_TEXT;
}

PTIsTextType()

bool PTIsTextType ( PolyBlockType  type )

inline

Returns true if PolyBlockType is of text type

Definition at line 81 of file publictypes.h.

                                             {
  return type == PT_FLOWING_TEXT || type == PT_HEADING_TEXT ||
         type == PT_PULLOUT_TEXT || type == PT_TABLE ||
         type == PT_VERTICAL_TEXT || type == PT_CAPTION_TEXT ||
         type == PT_INLINE_EQUATION;
}

Variable Documentation

kMaxCredibleResolution

constexpr int kMaxCredibleResolution = 2400

constexpr

Maximum believable resolution.

Definition at line 39 of file publictypes.h.

kMinCredibleResolution

constexpr int kMinCredibleResolution = 70

constexpr

Minimum believable resolution. Used as a default if there is no other information, as it is safer to under-estimate than over-estimate.

Definition at line 37 of file publictypes.h.

kPointsPerInch

constexpr int kPointsPerInch = 72

constexpr

Number of printers' points in an inch. The unit of the pointsize return.

Definition at line 32 of file publictypes.h.

kResolutionEstimationFactor

constexpr int kResolutionEstimationFactor = 10

constexpr

Ratio between median blob size and likely resolution. Used to estimate resolution when none is provided. This is basically 1/usual text size in inches.

Definition at line 44 of file publictypes.h.