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import java.io.IOException;
import javax.imageio.ImageIO;
import java.io.File;
import java.util.Arrays;
import java.util.Collections;
import java.awt.Color;
import java.awt.image.BufferedImage;
public class pix2 {
public static final String IMG = "C:/Users/loli/Desktop/orange.bmp";
public static void main(String[] args) {
pix2 p;
p = new pix2();
BufferedImage img;
try
{
img = ImageIO.read(new File(IMG));
p.GetSignature(img);
}
catch(IOException e)
{
e.printStackTrace();
return;
}
}
public double[] GetSignature(BufferedImage img) throws IOException
{
double [] tabres= new double[13];
byte tab[];
tab = GetGrayImage(img);
int[] tabSommeHorizontal;
tabSommeHorizontal = GetSommesHorizontal(tab, img.getWidth(), img.getHeight());
double[] tabSommeHorizontalN;
tabSommeHorizontalN = Normalize(tabSommeHorizontal);
int[] tabSommeVertical;
tabSommeVertical = GetSommesVertical(tab, img.getWidth(), img.getHeight());
double[] tabSommeVerticalN;
tabSommeVerticalN = Normalize(tabSommeVertical);
double [] tabMaxH =GetMax(tabSommeHorizontalN);
double [] tabMaxV =GetMax(tabSommeVerticalN);
int [] tabColor= GetMoyen(img);
for(int i=0; i<5;i++)
tabres[i]=tabMaxH[i];
for(int i=0; i<5;i++)
tabres[i+5]=tabMaxV[i];
for(int i=0; i<3;i++)
tabres[i+10]=tabColor[i];
return tabres;
}
//moyen RGB de l'image
public int[] GetMoyen(BufferedImage img) throws IOException{
int [] tab = new int[3];
File f = new File(IMG);
img = ImageIO.read(f);
int[] ib = img.getRGB(0, 0, img.getWidth(), img.getHeight(), null, 0, img.getWidth());
Color c = new Color(ib[0]);
int R=c.getRed();
int G=c.getGreen();
int B=c.getBlue();
tab[0]= R;
tab[1]= G;
tab[2]= B;
return tab;
}
//5 val max
public double[] GetMax(double [] tab){ double[] tab2 = new double[5];
Arrays.sort(tab);
for (int i=0; i<5; i++)
tab2[i] = tab[i];
return tab2;
}
//normalization
public double[] Normalize(int[] tab)
{
int max = tab[0];
for(int i=0;i<tab.length;i++)
{
if(tab[i] > max)
max = tab[i];
}
double[] res = new double[tab.length];
for(int i=0;i<res.length;i++)
{
res[i] = (double)tab[i]/(double)max;
}
return res;
}
//somme horizontale
public int[] GetSommesHorizontal(byte[] tab, int w, int h)
{
int[] res = new int[h];
for(int i=0;i<h;i++)
{
int somme = 0;
for(int j=0;j<w;j++)
{
somme = somme + tab[i*w+j];
}
res[i] = somme;
}
return res;
}
//somme verticale
public int[] GetSommesVertical(byte[] tab, int w, int h){
int[] res2 = new int[w];
for(int j=0; j<w;j++){
int somme=0;
for (int i=0;i<h;i++){
somme=somme+tab[i*w+j];
}
res2[j]=somme;
}
return res2;
}
//tableau niveau de gris
public byte[] GetGrayImage(BufferedImage img)
{int k=0;
byte tab[]=new byte [img.getHeight() * img.getWidth()];
int counter = 0;
for(int i = 0; i < img.getWidth(); i++)
{
for(int j = 0; j < img.getHeight(); j++)
{
int[] rgb;
rgb = getPixelData(img, i, j);
tab[k] = (byte)((rgb[0] + rgb[1] + rgb[2])/3);
k++;} }
return tab;
}
//RGB de chaque pixel
private static int [] getPixelData(BufferedImage img, int x, int y) {
int argb = img.getRGB(x, y);
int rgb[] = new int[]{
(argb >> 16) & 0xff, //red
(argb >> 8) & 0xff, //green
(argb ) & 0xff //blue
};
//System.out.println("rgb: " + rgb[0] + " " + rgb[1] + " " + rgb[2]);
return rgb;
}
} |
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