使用BufferedImages获取图像的每个像素的颜色 [英] Get color of each pixel of an image using BufferedImages

问题描述

我试图获取图像中每个像素的每一种颜色。
我的想法是：

  int [] pixels; 
 BufferedImage image; 
 
 image = ImageIO.read（this.getClass.getResources（image.png）; 
 pixels =（（DataBufferInt）image.getRaster.getDataBuffer）.getData（）; 
  

是不是我不能检查pixels数组包含什么，因为我得到以下错误：

  java.awt.image.DataBufferByte不能转换为java.awt.image.DataBufferInt 
  
 
 
 
我只想接收数组中每个像素的颜色，我该如何实现？
解决方案
 
  import java.io. *; 
 import java.awt。*; 
 import javax.imageio.ImageIO; 
 import java.awt.image.BufferedImage; 
 
 public class GetPixelColor 
 {
 public static void main（String args []）throws IOException {
文件file = new File（your_file.jpg）; 
 BufferedImage image = ImageIO.read（file）; 
 //按位置x和y获取像素颜色
 int clr = image.getRGB（x，y）; 
 int red =（clr& 0x00ff0000）>> 16; 
 int green =（clr& 0x0000ff00）> 8; 
 int blue = clr& 0x000000ff; 
 System.out.println（Red Color value =+ red）; 
 System.out.println（Green Color value =+ green）; 
 System.out.println（Blue Color value =+ blue）; 
} 
} 
  
当然你必须为所有像素
 
I am trying to get every single color of every single pixel of an image.
My idea was following:
int[] pixels;
BufferedImage image;

image = ImageIO.read(this.getClass.getResources("image.png");
pixels = ((DataBufferInt)image.getRaster.getDataBuffer).getData();
Is that right? I can't even check what the "pixels" array contains, because i get following error:
java.awt.image.DataBufferByte cannot be cast to java.awt.image.DataBufferInt
I just would like to receive the color of every pixel in an array, how do i achieve that?
解决方案
import java.io.*;
import java.awt.*;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;

public class GetPixelColor
{
  public static void main(String args[]) throws IOException{
  File file= new File("your_file.jpg");
  BufferedImage image = ImageIO.read(file);
  // Getting pixel color by position x and y 
  int clr=  image.getRGB(x,y); 
  int  red   = (clr & 0x00ff0000) >> 16;
  int  green = (clr & 0x0000ff00) >> 8;
  int  blue  =  clr & 0x000000ff;
  System.out.println("Red Color value = "+ red);
  System.out.println("Green Color value = "+ green);
  System.out.println("Blue Color value = "+ blue);
  }
}
of course you have to add a for loop for all pixels

                        
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