contrib/gel/gevd/gevd_step.cxx File Reference

Use 8 directions, with 45 degree angle in between them. More...

#include "gevd_step.h"
#include <vcl_vector.h>
#include <vcl_iostream.h>
#include <vnl/vnl_math.h>
#include <gevd/gevd_noise.h>
#include <gevd/gevd_float_operators.h>
#include <gevd/gevd_pixel.h>
#include <gevd/gevd_bufferxy.h>

Go to the source code of this file.

Functions
vcl_ostream &	operator<< (vcl_ostream &os, const gevd_step &st)
	Output a snapshot of current control parameters.
vcl_ostream &	operator<< (vcl_ostream &os, gevd_step &st)
	Output a snapshot of current control parameters.
Variables
const unsigned char	TWOPI = 8
const unsigned char	FULLPI = 4
const unsigned char	HALFPI = 2
const int	DIS []
const int	DJS []
const int	RDS [] = {0,-1, 1,-2, 2,-3, 3,-4, 4,-5, 5}
const int	FRAME = 4

---

Detailed Description

Use 8 directions, with 45 degree angle in between them.

The array DIS gives the i-component of the directions The array DJS gives the j-component of the directions. Shown here for a right-handed coordinate system for (i,j) in accordance with standard texts. -- JLM

                 j
           ______|_____________
          |      |      |      |
          |  3   |  2   |  1 <------ Direction Code
          |______|______|______|     for 8-connected
          |      |      |      |     neighbors
          |  4   |(i,j) |  0   |
          |______|______|______|___ i
          |      |      |      |
          |  5   |  6   |  7   |
          |______|______|______|
  
  

Definition in file gevd_step.cxx.

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Function Documentation

vcl_ostream& operator<<	(	vcl_ostream &	os,
		const gevd_step &	st
	)

Output a snapshot of current control parameters.

Definition at line 530 of file gevd_step.cxx.

vcl_ostream& operator<<	(	vcl_ostream &	os,
		gevd_step &	st
	)

Output a snapshot of current control parameters.

Definition at line 543 of file gevd_step.cxx.

---

Variable Documentation

const int DIS[]

Initial value:

 { 1, 1, 0,-1,-1,-1, 0, 1, 
                    1, 1, 0,-1,-1,-1, 0, 1, 
                    1, 1, 0,-1,-1,-1, 0, 1}

Definition at line 37 of file gevd_step.cxx.

const int DJS[]

Initial value:

 { 0, 1, 1, 1, 0,-1,-1,-1,
                    0, 1, 1, 1, 0,-1,-1,-1,
                    0, 1, 1, 1, 0,-1,-1,-1}

Definition at line 40 of file gevd_step.cxx.

const int FRAME = 4

Definition at line 46 of file gevd_step.cxx.

const unsigned char FULLPI = 4

Definition at line 36 of file gevd_step.cxx.

const unsigned char HALFPI = 2

Definition at line 36 of file gevd_step.cxx.

const int RDS[] = {0,-1, 1,-2, 2,-3, 3,-4, 4,-5, 5}

Definition at line 43 of file gevd_step.cxx.

const unsigned char TWOPI = 8

Definition at line 36 of file gevd_step.cxx.