qadevOOo/runner/convwatch/PixelCounter.java

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  27
  28 package convwatch;
  29
  30 // import java.awt.Image;
  31 import convwatch.ImageHelper;
  32
  33 // -----------------------------------------------------------------------------
  34 abstract class CountPixel
  35 {
  36     int m_nCount = 0;
  37     public int getCount() {return m_nCount;}
  38     public abstract void count(int _nRGB);
  39 }
  40
  41 // -----------------------------------------------------------------------------
  42 class CountNotWhite extends CountPixel
  43 {
  44     public CountNotWhite()
  45         {
  46             // System.out.println("CountWhite()");
  47         }
  48
  49     public void count(int pixel)
  50         {
  51             int alpha = (pixel >> 24) & 0xff;
  52             int red   = (pixel >> 16) & 0xff;
  53             int green = (pixel >>  8) & 0xff;
  54             int blue  = (pixel      ) & 0xff;
  55
  56             // System.out.println(String.valueOf(red) + ":" + String.valueOf(green) + ":" + String.valueOf(blue));
  57             if (red == 0xff && green == 0xff && blue == 0xff)
  58             {
  59                 return;
  60             }
  61             m_nCount++;
  62         }
  63 }
  64
  65 // -----------------------------------------------------------------------------
  66 class CountNotBlack extends CountPixel
  67 {
  68     public CountNotBlack()
  69         {
  70             // System.out.println("CountBlack()");
  71         }
  72
  73     public void count(int pixel)
  74         {
  75             int alpha = (pixel >> 24) & 0xff;
  76             int red   = (pixel >> 16) & 0xff;
  77             int green = (pixel >>  8) & 0xff;
  78             int blue  = (pixel      ) & 0xff;
  79
  80             if (red == 0x00 && green == 0x00 && blue == 0x00)
  81             {
  82                 return;
  83             }
  84             m_nCount++;
  85         }
  86 }
  87
  88 // -----------------------------------------------------------------------------
  89 class graphics_stuff
  90 {
  91     public int stuff()
  92         {
  93 // (1) decoding
  94             int rgba = 0; // ...; // comes from PixelGrabber, BufferedImage.getRGB etc.
  95             int red = (rgba >> 16) & 0xff;
  96             int green = (rgba >> 8) & 0xff;
  97             int blue = rgba & 0xff;
  98             int alpha = (rgba >> 24) & 0xff;
  99 // (2) now modify red, green, blue and alpha as you like;
 100 //     make sure that each of the four values stays in the
 101 //     interval 0 to 255
 102 //            ...
 103 // (3) and encode back to an int, e.g. to give it to MemoryImageSource or
 104 //     BufferedImage.setRGB
 105                 rgba = (alpha << 24) | (red << 16) | (green << 8) | blue;
 106                 return 0;
 107         }
 108
 109     public static void handlesinglepixel(int x, int y, int pixel)
 110         {
 111             int alpha = (pixel >> 24) & 0xff;
 112             int red   = (pixel >> 16) & 0xff;
 113             int green = (pixel >>  8) & 0xff;
 114             int blue  = (pixel      ) & 0xff;
 115             // Deal with the pixel as necessary...
 116         }
 117
 118     public static void countPixel(ImageHelper img, int _x, int _y, int _w, int _h, CountPixel _aPixelCounter)
 119         {
 120             for (int y = 0; y < _h; y++) {
 121                 for (int x = 0; x < _w; x++) {
 122                     // handlesinglepixel(x+i, y+j, pixels[j * w + i]);
 123                     _aPixelCounter.count(img.getPixel(x,y));
 124                 }
 125             }
 126         }
 127     public static int countNotWhitePixel(ImageHelper _aImage)
 128         {
 129             int w = _aImage.getWidth();
 130             int h = _aImage.getHeight();
 131
 132             CountPixel aCountNotWhite = new CountNotWhite();
 133             countPixel(_aImage, 0, 0, w, h, aCountNotWhite);
 134             return aCountNotWhite.getCount();
 135         }
 136
 137     public static int countNotBlackPixel(ImageHelper _aImage)
 138         {
 139             int w = _aImage.getWidth();
 140             int h = _aImage.getHeight();
 141
 142             CountPixel aCountNotBlack = new CountNotBlack();
 143             countPixel(_aImage, 0, 0, w, h, aCountNotBlack);
 144             return aCountNotBlack.getCount();
 145         }
 146 }
 147
 148 // -----------------------------------------------------------------------------
 149
 150 public class PixelCounter {
 151     // private Image m_aImage;
 152     ImageHelper m_aImage;
 153
 154
 155     public int countNotWhitePixel(String _sFile)
 156         throws java.io.IOException
 157         {
 158             m_aImage = ImageHelper.createImageHelper(_sFile);
 159             int nw = graphics_stuff.countNotWhitePixel(m_aImage);
 160             return nw;
 161         }
 162
 163     public int countNotBlackPixel(String _sFile)
 164         throws java.io.IOException
 165         {
 166             m_aImage = ImageHelper.createImageHelper(_sFile);
 167             int nw = graphics_stuff.countNotBlackPixel(m_aImage);
 168             return nw;
 169         }
 170
 171     public static int countNotWhitePixelsFromImage(String _sFile)
 172         throws java.io.IOException
 173         {
 174             PixelCounter a = new PixelCounter();
 175             return a.countNotWhitePixel(_sFile);
 176         }
 177
 178     public static int countNotBlackPixelsFromImage(String _sFile)
 179         throws java.io.IOException
 180         {
 181             PixelCounter a = new PixelCounter();
 182             return a.countNotBlackPixel(_sFile);
 183         }
 184
 185     // -----------------------------------------------------------------------------
 186
 187 //    public static void main(String[] args) {
 188 //
 189 //        String a = helper.StringHelper.createValueString(10, 4);
 190 //        int dummy = 1;
 191 ///*
 192 // BorderRemover a = new BorderRemover();
 193 //        try
 194 //        {
 195 //            a.createNewImageWithoutBorder(args[0], args[1]);
 196 //        }
 197 //        catch(java.io.IOException e)
 198 //        {
 199 //            System.out.println("Exception caught.");
 200 //        }
 201 // */
 202 //    }
 203
 204 }
 205
 206