Mega Code Archive

 

Categories / Java / 2D Graphics GUI

 

Get average of a set of images with WritableRaster

import java.awt.image.BufferedImage; import java.awt.image.WritableRaster; public class Main {   static BufferedImage average(BufferedImage[] images) {     BufferedImage average = new BufferedImage(images[0].getWidth(), images[0].getHeight(),         BufferedImage.TYPE_BYTE_GRAY);     WritableRaster raster = average.getRaster().createCompatibleWritableRaster();     for (int k = 0; k < images[0].getHeight(); ++k) {       for (int j = 0; j < images[0].getWidth(); ++j) {         float sum = 0.0f;         for (int i = 0; i < images.length; ++i) {           sum = sum + images[i].getRaster().getSample(j, k, 0);         }         raster.setSample(j, k, 0, Math.round(sum / images.length));       }     }     average.setData(raster);     return average;   } }