如何使用Eclipse查找图像中的像素总数和图像中心？ [英] How Do I Find The Total Number Of Pixels In An Image And The Center Of An Image Using Eclipse?

问题描述

我已经这样做了几天，我似乎无法理解如何找到像素总数。此外，我需要找到图像的中心，这只是坐标的平均值，但每次我放入其中的东西都无法解决。这里是代码到目前为止：



import javax.imageio.ImageIO;

import java.awt.image.BufferedImage;

import java.io. *;

import java.net。*;

public class Quiz {

static int width，高度;

public static void main（String [] args）{

try {

BufferedImage image = null;

URL url = new URL（http://imc.kean.edu/cps2231/program6.png）;

image = ImageIO.read（url）;

height = image.getHeight（）;

width = image.getWidth（）;

System.out.println（width：+ width +height： +高度）;



int [] [] img = new int [height] [width];



for（int y = 0; y< height; y ++）>

for（int x = 0; x< width; x ++）>

img [ y] [x] = image.getData（）。getSample（x，y，0）;



printImg（img）;



int color = 2;

int cX = 0;

int cY = 0;

int pixels = 0;

for（int Y = 0; Y<高度; Y ++）> for（int x = 0; x< width; x ++）{>

if（img [y] [x] == 0）{

label（img， x，y，color）;

System.out.println（颜色：+颜色+对象大小：+像素+像素，+居中于+（+ cX +，+ cY +））;

color ++;



}

}

}



System.out.println（黑色物体总数：+（颜色-2））;

printImg（img）;

} catch（IOException e）{e.printStackTrace（）; }

}







static void label（int [] [ ] A，int x，int y，int color）{

if（（x> = 0）&&（y> = 0）&&（x< width）> System.out.printf（ （％d，％d）颜色：％d \ n，x，y，颜色）;

A [y] [x] =颜色;

标签（A，x，y-1，颜色）;

标签（A，x-1，y，颜色）;

标签（A，x，y + 1，颜色）;

标签（A，x + 1，y，颜色）;

}

}



static void printImg（int [] [] A）{

for（int y = 0; y< height; y ++）> for（int x = 0; x< width; x ++）>

System.out.printf（％d，A [y] [x]）;

System.out。 println（）;









< br $> b $ b

}

}

}

I have been doing this for several days and I cant seem to understand how to find the total number of pixels. Also I need to find the center of the image as well which is just the average of the coordinates but everytime I put something in it doesn't work out. here is code so far:

import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.*;
import java.net.*;
public class Quiz {
static int width,height;
public static void main( String[] args ){
try {
BufferedImage image = null;
URL url=new URL("http://imc.kean.edu/cps2231/program6.png");
image = ImageIO.read(url);
height=image.getHeight();
width=image.getWidth();
System.out.println("width:"+width+ " height:"+height);

int [][] img=new int[height][width];

for (int y=0;y<height;y++)>
for (int x=0;x<width;x++)>
img[y][x]= image.getData().getSample(x, y, 0);

printImg(img);

int color=2;
int cX=0;
int cY=0;
int pixels=0;
for (int y=0;y<height;y++)> for (int x=0;x<width;x++){>
if (img[y][x] ==0){
label(img, x, y, color);
System.out.println("Color: " + color + " Object size: " + pixels + " pixels," + " Center at "+"("+cX+","+cY+")");
color++;

}
}
}

System.out.println("Total number of black objects:"+ (color-2));
printImg(img);
} catch (IOException e) { e.printStackTrace(); }
}



static void label(int[][] A, int x, int y, int color) {
if ((x>=0) && (y>=0) && (x<width)> System.out.printf("(%d,%d) color:%d\n",x,y,color);
A[y][x]=color;
label(A, x, y-1, color);
label(A, x-1,y, color);
label(A, x, y+1, color);
label(A, x+1, y, color);
}
}

static void printImg(int[][] A) {
for (int y=0;y<height;y++)> for (int x=0;x<width;x++)>
System.out.printf("%d",A[y][x]);
System.out.println();






}
}
}

推荐答案

您应该查看图像的属性以找出宽度和高度。

You should view the properties of the image to find out the width and height.

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