IMAGELINE Class Reference

#include <img.h>

List of all members.

Public Member Functions
COLOUR_PIX	operator[] (inT32 index)
	IMAGELINE ()
void	init (inT32 width)
	~IMAGELINE ()
void	set_bpp (inT8 new_bpp)
void	init ()
Public Attributes
uinT8 *	pixels
	image pixels
inT8	bpp
	bits per pixel
Friends
void	IMAGE::get_line (inT32 x, inT32 y, inT32 width, IMAGELINE *linebuf, inT32 margins)
void	IMAGE::get_column (inT32 x, inT32 y, inT32 height, IMAGELINE *linebuf, inT32 margins)
void	IMAGE::put_line (inT32 x, inT32 y, inT32 width, IMAGELINE *linebuf, inT32 margins)
void	IMAGE::put_column (inT32 x, inT32 y, inT32 height, IMAGELINE *linebuf, inT32 margins)
void	IMAGE::fast_get_line (inT32 x, inT32 y, inT32 width, IMAGELINE *linebuf)
void	IMAGE::fast_put_line (inT32 x, inT32 y, inT32 width, IMAGELINE *linebuf)

---

Detailed Description

Definition at line 325 of file img.h.

---

Constructor & Destructor Documentation

IMAGELINE::IMAGELINE

(

)

[inline]

default constructor

Definition at line 337 of file img.h.

                {
      linewidth = 0;
      line = NULL;
      pixels = line;
      bpp = 8;
    }

IMAGELINE::~IMAGELINE

(

)

[inline]

Definition at line 356 of file img.h.

                  {              //destructor
      if (line != NULL)
        free_mem(line);
    }

---

Member Function Documentation

void IMAGELINE::init

(

inT32

width

)

[inline]

Definition at line 343 of file img.h.

                           {  //size of line
      if (width <= 0)
        width = MAXIMAGEWIDTH;
      if (width > linewidth) {
        if (line != NULL)
          free_mem(line);
        linewidth = width;
        line = (uinT8 *) alloc_mem (linewidth * sizeof (uinT8));
      }
      pixels = line;
      bpp = 8;
    }

void IMAGELINE::init

(

)

[inline]

Definition at line 369 of file img.h.

                {
      if (line == NULL)
        init (0);
      else {
        pixels = line;
        bpp = 8;
      }
    }

COLOUR_PIX IMAGELINE::operator[]

(

inT32

index

)

[inline]

colour pixels

Definition at line 331 of file img.h.

                 {
      return &pixels[index * 3]; //coercion access op
    }

void IMAGELINE::set_bpp

(

inT8

new_bpp

)

[inline]

For colour

Definition at line 362 of file img.h.

                               {
      if (new_bpp <= 8)
        bpp = 8;
      else
        bpp = 24;
    }

---

Friends And Related Function Documentation

void IMAGE::fast_get_line	(	inT32	x,
		inT32	y,
		inT32	width,
		IMAGELINE *	linebuf
	)		[friend]

Note:

may just change pointer

Parameters:

x	coord to start at
y	line to get
width	no of pixels to get
linebuf	line to copy to

void IMAGE::fast_put_line	(	inT32	x,
		inT32	y,
		inT32	width,
		IMAGELINE *	linebuf
	)		[friend]

Note:

may just change pointer

Parameters:

x	coord to start at
y	line to get
width	no of pixels to put
linebuf	line to copy to

void IMAGE::get_column	(	inT32	x,
		inT32	y,
		inT32	height,
		IMAGELINE *	linebuf,
		inT32	margins
	)		[friend]

copies a column

Parameters:

x	coord to start at
y	line to get
height	no of pixels to get
linebuf	line to copy to
margins	size of margins

void IMAGE::get_line	(	inT32	x,
		inT32	y,
		inT32	width,
		IMAGELINE *	linebuf,
		inT32	margins
	)		[friend]

copies a line

Parameters:

x	coord to start at
y	line to get
width	no of pixels to get
linebuf	line to copy to
margins	size of margins

void IMAGE::put_column	(	inT32	x,
		inT32	y,
		inT32	height,
		IMAGELINE *	linebuf,
		inT32	margins
	)		[friend]

writes a column

Parameters:

x	coord to start at
y	line to get
height	no of pixels to put
linebuf	line to copy to
margins	size of margins

void IMAGE::put_line	(	inT32	x,
		inT32	y,
		inT32	width,
		IMAGELINE *	linebuf,
		inT32	margins
	)		[friend]

writes a line

Parameters:

x	coord to start at
y	line to get
width	no of pixels to put
linebuf	line to copy to
margins	size of margins

---

Member Data Documentation

inT8 IMAGELINE::bpp

bits per pixel

Definition at line 329 of file img.h.

uinT8* IMAGELINE::pixels

image pixels

Definition at line 328 of file img.h.

---

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

• tesseract-ocr/image/img.h