Filtro Contraste

import ij.*;
import ij.process.*;
import ij.gui.*;
import java.awt.*;
import ij.plugin.filter.*;

public class Filter_Contraste implements PlugInFilter
{
ImagePlus imp;

public int setup(String arg, ImagePlus imp)
{
this.imp = imp;
return DOES_8G;
}

public void run(ImageProcessor ip)
{
int w=ip.getWidth();
int n=ip.getHeight();
for(int i =0; i < w;i++)
{
for(int j= 0; j
{
int p =ip.getPixel(i,j);
p = (int)(p*2+50);
if (p > 255){
p=255;
}
ip.putPixel(i,j,p);
}
}
}

}

Filtro

import ij.*;
import ij.process.*;
import ij.gui.*;
import java.awt.*;
import ij.plugin.filter.*;
public class Filter_Plugin1 implements PlugInFilter{
ImagePlus imp;
public int setup(String arg, ImagePlus imp) {
this.imp = imp;
return DOES_ALL;
}
public void run(ImageProcessor ip) {
int [ ]H=ip.getHistogram();
int w=ip.getWidth();
int h=ip.getHeight();
int k=256;
int a,b ;
for(int i=1;iH[i]=H[i-1]+H[i];
}
for(int i=0;ifor(int j=0;ja=ip.getPixel(i,j);
b=(int)(a*(k-1)/(w*h));
ip.putPixel(i,j,b);
}}}}

Umbralización

import ij.*;
import ij.process.*;
import ij.gui.*;
import java.awt.*;
import ij.plugin.filter.*;

public class ejemplo1 implements PlugInFilter
{
ImagePlus imp;

public int setup(String arg, ImagePlus imp)
{
this.imp = imp;
return DOES_ALL;
}

public void run(ImageProcessor ip)
{

int w=ip.getWidth();
int n=ip.getHeight();
for(int i=0;i for(int j=0;j int p=ip.getPixel(i,j);
if(p<50){
p=0;
}
if(p>50){
p=255;
}
ip.putPixel(i,j,255-p);
}
}
}
}

Histograma por pixel

import ij.*;
import ij.process.*;
import ij.gui.*;
import java.awt.*;
import ij.plugin.filter.*;

public class ejemplo implements PlugInFilter {
ImagePlus imp;

public int setup(String arg, ImagePlus imp) {
this.imp = imp;
return DOES_ALL;
}

public void run(ImageProcessor ip) {
int w=ip.getWidth();
int n=ip.getHeight();
for(int i=0;i for(int j=0;j int p=ip.getPixel(i,j);
p=(int)(p*0.5+1.5);
ip.putPixel(i,j,255-p);
}
ip.setPixel(i,j,255+p);
}
}
}

Umbralización

import ij.*;
import ij.process.*;
import ij.gui.*;
import java.awt.*;
import ij.plugin.filter.*;

public class ejemplo_neg3 implements PlugInFilter
{
ImagePlus imp;

public int setup(String arg, ImagePlus imp)
{
this.imp = imp;
return DOES_ALL;
}

public void run(ImageProcessor ip)
{

int w=ip.getWidth();
int n=ip.getHeight();
for(int i=0;i {
for(int j=0;j {
int p=ip.getPixel(i,j);
if(p<50)
{
p=0;
}
if(p>50)
{
p=255;
}
ip.putPixel(i,j,255-p);
}

}
}

}

histograma de filtro

import ij.*;
import ij.process.*;
import ij.gui.*;
import java.awt.*;
import ij.plugin.filter.*;
public class Filter_Plugin1 implements PlugInFilter{
ImagePlus imp;
public int setup(String arg, ImagePlus imp) {
this.imp = imp;
return DOES_ALL;
}
public void run(ImageProcessor ip) {
int [ ]H=ip.getHistogram();
int w=ip.getWidth();
int h=ip.getHeight();
int k=256;
int a,b ;
for(int i=1;iH[i]=H[i-1]+H[i];
}
for(int i=0;ifor(int j=0;ja=ip.getPixel(i,j);
b=(int)(a*(k-1)/(w*h));
ip.putPixel(i,j,b);
}
}
}
}

histograma pixel por pixel

import ij.*;
import ij.process.*;
import ij.gui.*;
import java.awt.*;
import ij.plugin.filter.*;

public class ejemplo_neg3 implements PlugInFilter
{
ImagePlus imp;

public int setup(String arg, ImagePlus imp)
{
this.imp = imp;
return DOES_ALL;
}

public void run(ImageProcessor ip)
{

int w=ip.getWidth();
int n=ip.getHeight();
for(int i=0;i {
for(int j=0;j {
int p=ip.getPixel(i,j);
p=(int)(p*0.5+1.5);
ip.putPixel(i,j,255-p);
}
ip.setPixel(i,j,255+p);

}
}

}