registration
Class RegisterRetina

java.lang.Object
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  +--registration.Register
        |
        +--registration.RegisterMI
              |
              +--registration.RegisterRetina

public class RegisterRetina

extends RegisterMI

Retina registration methods. (c) 2003 Michael Abramoff. All rights reserved.

Field Summary

protected float[]

referenceDisk

Fields inherited from class registration.RegisterMI

minmaxref, precision

Fields inherited from class registration.Register

estimate, mask, reference, width

Constructor Summary

RegisterRetina(float[] reference, int width, float[] mask)
Prepare for registration including preprocessing of the reference image.

Method Summary

static float[]	featureBlobs(float[] image, int width)
static float[]	featureEdges(float[] image, int width)
static void	makeMaskedNaN(float[] image, float[] mask) Mask the pixels in a vector image by setting all pixels that have mask == 0 to NaN.
float[]	register(float[] a) Register the image a to the reference image.

Methods inherited from class registration.RegisterMI

toString

Methods inherited from class registration.Register

plotParameters

Methods inherited from class java.lang.Object

, clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

referenceDisk

protected float[] referenceDisk

Constructor Detail

RegisterRetina

public RegisterRetina(float[] reference,
                      int width,
                      float[] mask)

Prepare for registration including preprocessing of the reference image. The reference image will be used in register.

Parameters:

image - an image

width - the width of the image

mask - a float[] of the same size as reference and a containing a 1 for each valid pixel, 0 if not valid.

Method Detail

register

public float[] register(float[] a)

Register the image a to the reference image. First make an estimate of the disk using blobs, then refine the estimate using MI and Powell's minimization. Uses detection of the disk to minimize local minima in the minimization and false registrations. If mask is given, use only the pixels in a that are 1 in mask, and disregard the pixels that are 0 in mask.

Overrides:

register in class RegisterMI

Parameters:

a - an image

Returns:

a vector with the registration coefficients

featureBlobs

public static float[] featureBlobs(float[] image,
                                   int width)

featureEdges

public static float[] featureEdges(float[] image,
                                   int width)

makeMaskedNaN

public static void makeMaskedNaN(float[] image,
                                 float[] mask)

Mask the pixels in a vector image by setting all pixels that have mask == 0 to NaN.