O2Plib.image
Class PixFunctions

java.lang.Object
  O2Plib.image.PixFunctions

public class PixFunctions
extends java.lang.Object

Constructor Summary

PixFunctions()
PixFunctions() - constructor

Method Summary

int[]	calcHistogram(DbSample dbS, int x1, int y1, int x2, int y2) calcHistogram() - compute grayscale histogram from image pixel data for sample dbS.
int[]	calcHistogram(DbSample dbS, Roi roi) calcHistogram() - compute grayscale histogram from image pixel data for sample dbS.
static DbSpot	calcMeanGrayValue(DbSample dbS, int xC, int yC, int size, DbSpot bkgrdSpot) calcMeanGrayValue() - compute mean gray value of spot and return the values in a DbSpot instance for sample dbS with (sp.area, sp.density, sp.xMom, sp.yMom, sp.density, sp.mnDensity, sp.dMax, sp.dMin, sp.sxy) Note: the std-deviation of sp.density is saved in sp.sxy.

Methods inherited from class java.lang.Object

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

Constructor Detail

PixFunctions

public PixFunctions()

PixFunctions() - constructor

Method Detail

calcMeanGrayValue

public static DbSpot calcMeanGrayValue(DbSample dbS,
                                       int xC,
                                       int yC,
                                       int size,
                                       DbSpot bkgrdSpot)

calcMeanGrayValue() - compute mean gray value of spot and return the values in a DbSpot instance for sample dbS with (sp.area, sp.density, sp.xMom, sp.yMom, sp.density, sp.mnDensity, sp.dMax, sp.dMin, sp.sxy) Note: the std-deviation of sp.density is saved in sp.sxy. Boundary conditions: ...

Parameters:

dbS - is sample to measure with image in char pix[].

xC - current x coordinate

yC - current y coordinate

size - of a side of the square measurement area

bkgrdSpot - is optional background spot with mnDensity

Returns:

DbSpot with features, null if problem

calcHistogram

public int[] calcHistogram(DbSample dbS,
                           Roi roi)

calcHistogram() - compute grayscale histogram from image pixel data for sample dbS. The dynamic range of the histogram is determined by the maximum pixel gray value of the image. Compute the histogram over the region specified by the Roi.

Parameters:

dbS - is the image sample to use

roi - is region of interest to compute the histogram

Returns:

histogram if succeed, else null.

calcHistogram

public int[] calcHistogram(DbSample dbS,
                           int x1,
                           int y1,
                           int x2,
                           int y2)

calcHistogram() - compute grayscale histogram from image pixel data for sample dbS. The dynamic range of the histogram is determined by the maximum pixel gray value of the image. Compute the histogram over the region specified by [x1:x2, y1:y2].

Parameters:

dbS - is the image sample to use

x1 - is X ULHC region, full image if < 0

y1 - is Y ULHC region, full image if < 0

x2 - is X LRHC region, full image if < 0

y2 - is Y LRHC region, full image if < 0

Returns:

histogram if succeed, else null.