SomeName::OptIm32 Class Reference

#include <OptIm32.h>

Inheritance diagram for SomeName::OptIm32:

SomeName::Root List of all members.

Detailed Description

An Optimized Image class (but only for small images).

This class provides functionality and data for analyzing features of images of size 31x31 or less.

One bit is used to represent each pixel, and is either "on" (black) or "off" (white). Additional "meta" information about each row and column is also maintained, including the number of holes and the number of black pixels. This information can be used to create very efficient feature-detection algorithms.

The 'str' method is a useful debugging tool that shows the information maintained within an instance of this class in a very concise fashion. An example of the output for the call:

optim->str('#','.',7)

which generates:

0111110 0 #...... 1 0 #...... 1 0 #...... 1 0 #...... 1 1 #.###.. 4 1 ##...#. 3 1 #.....# 2 1 #.....# 2 0 .#####. 5 8222222

assuming that 'optim' is an Image* represents a 'b'. The numbers around the borders are interpreted as follows:

IMPORTANT: A "hole" in a line is a sequence of contiguous zero's (off or white bits) enclosed in 1's (on or black bits) on BOTH sides.


Public Member Functions

 OptIm32 (const Image *image, const ImageArgs &config)
 OptIm32 (const std::vector< unsigned int > &rows, u1 width=PixelLine32::MaxPixels)
const u1 & width () const
const std::vector< PixelLine32 > & cols () const
const std::vector< PixelLine32 > & rows () const
void init (const std::vector< unsigned int > &rows, u1 width)
int rblack (u1 i) const
 Number of black pixels in row 'i'.
int rholes (u1 i) const
 Number of holes in row 'i'.
int cblack (u1 i) const
 Number of black pixels in column 'i'.
int choles (u1 i) const
 Number of holes in column 'i'.
std::string str (char on= '#', char off= '.') const

Static Public Member Functions

static void test (int argc=0, const char *argv[]=NULL)

Protected Member Functions

void widthIs (const u1 &width)
void colsIs (const std::vector< PixelLine32 > &cols)
void rowsIs (const std::vector< PixelLine32 > &rows)
std::string rawstr (const std::vector< PixelLine32 > &vec, char on= '1', char off= '0', unsigned char size=PixelLine32::MaxPixels) const


Member Function Documentation

std::string SomeName::OptIm32::str char  on = '#',
char  off = '.'
const
 

Create printable representation of this OptIm.

See the class comments for more details.


The documentation for this class was generated from the following files:
Generated on Thu Jun 8 11:53:14 2006 for SomeName by  doxygen 1.4.6