BINARYZACJA

public void threshold(int val)
    {


            Raster r=biFileImage.getRaster();
            BufferedImage bi_filtered=new BufferedImage(biFileImage.getWidth(), biFileImage.getHeight(), BufferedImage.TYPE_INT_RGB);

            for(int i=0; i<biFileImage.getWidth(); i++)
            {
                for(int j=0; j<biFileImage.getHeight(); j++)
                {
                    double grayVal=(r.getSample(i, j, 0)+r.getSample(i, j, 1)+r.getSample(i, j, 2))/3;

                    if(grayVal>val)
                    {
                        bi_filtered.getRaster().setSample(i, j, 0, 255);
                        bi_filtered.getRaster().setSample(i, j, 1, 255);
                        bi_filtered.getRaster().setSample(i, j, 2, 255);
                    }

                    else if(grayVal<=val)
                    {
                        bi_filtered.getRaster().setSample(i, j, 0, 0);
                        bi_filtered.getRaster().setSample(i, j, 1, 0);
                        bi_filtered.getRaster().setSample(i, j, 2, 0);
                    }
                }
            }

            biFileImage = bi_filtered;
    }