BlurFilterpublic class BlurFilter extends ImageFilter
| Fields Summary |
|---|
| private int | savedWidth | | private int | savedHeight | | private int[] | savedPixels | | private static ColorModel | defaultCM |
| Methods Summary |
|---|
| private int | avgPixels(int[] pixels, int size)
float redSum=0, greenSum=0, blueSum=0, alphaSum=0;
for (int i=0;i<size;i++)
try {
int pixel = pixels[i];
redSum += defaultCM.getRed (pixel);
greenSum += defaultCM.getGreen (pixel);
blueSum += defaultCM.getBlue (pixel);
alphaSum += defaultCM.getAlpha (pixel);
} catch (ArrayIndexOutOfBoundsException e) {
System.out.println ("Ooops");
}
int redAvg = (int)(redSum / size);
int greenAvg = (int)(greenSum / size);
int blueAvg = (int)(blueSum / size);
int alphaAvg = (int)(alphaSum / size);
return ((0xff << 24) | (redAvg << 16) |
(greenAvg << 8) | (blueAvg << 0));
| | public void | imageComplete(int status)
if ((status == IMAGEABORTED) || (status == IMAGEERROR)) {
consumer.imageComplete (status);
return;
} else {
int pixels[] = new int [savedWidth];
int position, sumArray[], sumIndex;
sumArray = new int [9]; // maxsize - vs. Vector for performance
for (int yy=0;yy<savedHeight;yy++) {
position=0;
int start = yy * savedWidth;
for (int xx=0;xx<savedWidth;xx++) {
sumIndex=0;
sumArray[sumIndex++] = savedPixels[start+xx];
if (yy != (savedHeight-1))
sumArray[sumIndex++] = savedPixels[start+xx+savedWidth];
if (yy != 0)
sumArray[sumIndex++] = savedPixels[start+xx-savedWidth];
if (xx != (savedWidth-1))
sumArray[sumIndex++] = savedPixels[start+xx+1];
if (xx != 0)
sumArray[sumIndex++] = savedPixels[start+xx-1];
if ((yy != 0) && (xx != 0))
sumArray[sumIndex++] = savedPixels[start+xx-savedWidth-1];
if ((yy != (savedHeight-1)) && (xx != (savedWidth-1)))
sumArray[sumIndex++] = savedPixels[start+xx+savedWidth+1];
if ((yy != 0) && (xx != (savedWidth-1)))
sumArray[sumIndex++] = savedPixels[start+xx-savedWidth+1];
if ((yy != (savedHeight-1)) && (xx != 0))
sumArray[sumIndex++] = savedPixels[start+xx+savedWidth-1];
pixels[position++] = avgPixels(sumArray, sumIndex);
}
consumer.setPixels (0, yy, savedWidth, 1, defaultCM,
pixels, 0, savedWidth);
}
consumer.imageComplete (status);
}
| | public void | setColorModel(java.awt.image.ColorModel model)
// Change color model to model you are generating
consumer.setColorModel (defaultCM);
| | public void | setDimensions(int width, int height)
savedWidth=width;
savedHeight=height;
savedPixels=new int [width*height];
consumer.setDimensions (width, height);
| | public void | setHints(int hintflags)
// Set new hints, but preserve SINGLEFRAME setting
consumer.setHints (TOPDOWNLEFTRIGHT | COMPLETESCANLINES |
SINGLEPASS | (hintflags & SINGLEFRAME));
| | public void | setPixels(int x, int y, int width, int height, java.awt.image.ColorModel cm, byte[] pixels, int offset, int scansize)
setThePixels (x, y, width, height, cm, pixels, offset, scansize);
| | public void | setPixels(int x, int y, int width, int height, java.awt.image.ColorModel cm, int[] pixels, int offset, int scansize)
setThePixels (x, y, width, height, cm, pixels, offset, scansize);
| | private void | setThePixels(int x, int y, int width, int height, java.awt.image.ColorModel cm, java.lang.Object pixels, int offset, int scansize)
int sourceOffset = offset;
int destinationOffset = y * savedWidth + x;
boolean bytearray = (pixels instanceof byte[]);
for (int yy=0;yy<height;yy++) {
for (int xx=0;xx<width;xx++)
if (bytearray)
savedPixels[destinationOffset++]=
cm.getRGB(((byte[])pixels)[sourceOffset++]&0xff);
else
savedPixels[destinationOffset++]=
cm.getRGB(((int[])pixels)[sourceOffset++]);
sourceOffset += (scansize - width);
destinationOffset += (savedWidth - width);
}
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