Calculation of the mean value of an image with Raster : Image « 2D Graphics GUI « Java






  1. Java
  2. 2D Graphics GUI
  3. Image

Calculation of the mean value of an image with Raster

       

import java.awt.image.BufferedImage;
import java.awt.image.Raster;

public class Main {
  public static void main(String[] argv) throws Exception {
  }
  public static double meanValue(BufferedImage image) {
    Raster raster = image.getRaster();
    double sum = 0.0;

    for (int y = 0; y < image.getHeight(); ++y){
      for (int x = 0; x < image.getWidth(); ++x){
        sum += raster.getSample(x, y, 0);
      }
    }
    return sum / (image.getWidth() * image.getHeight());
  }
}








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