/**
* Scales the range of <code>image</code> to an arbitrary min/max in a Region of Interest. The
* range used for all planes is the global max, min of the image.
*
* @param image ColorImage to scale.
* @param roi Region of Interest of <code>image</code>.
* @return <code>image</code>.
*/
protected Image apply(ColorImage image, ROI roi) {
GrayImage plane;
int int_max = (int) float_max;
int int_min = (int) float_min;
float min = (float) image.min(roi);
float max = (float) image.max(roi);
float r = 0;
float range = max - min;
float value = 0;
if (range == 0) range = 1; // to avoid divide by zero problems
for (int i = 0; i < 3; i++) {
plane = image.plane(i);
for (int y = roi.uy(); y <= roi.ly(); y++) {
for (int x = roi.ux(); x <= roi.lx(); x++) {
r = (float) plane.get(x, y);
value = (((r - min) / (range) * (int_max - int_min)) + int_min);
plane.set(x, y, (short) value);
}
}
image.setPlane(i, plane);
}
return image;
}
/**
* Applies the palette to <code>image</code> using the KdTree to find the nearest neighbor.
* Returned Image is a ColorImage. <code>image</code> is not modified.
*
* @param image ColorImage to apply palette to
* @return ColorImage
*/
protected Image apply(ColorImage image) {
RealColorImage realImage = ImageConverter.toRealColor(image);
ColorImage newImage = new ColorImage(realImage.X(), realImage.Y());
float[] total = null;
float[] best = null;
int[] temp = new int[3];
for (int x = 0; x < realImage.X(); x++) {
for (int y = 0; y < realImage.Y(); y++) {
tree2.getValues().removeAllElements();
do {
total = realImage.get(x, y);
tree2.findNearest(total, tree2.getRoot(), threshold);
threshold += 2;
} while (tree2.getValues().size() == 0);
threshold = 8;
if (tree2.getValues().size() != 1) best = findBest(total);
else best = (float[]) tree2.getValues().elementAt(0);
temp[0] = (int) best[0];
temp[1] = (int) best[1];
temp[2] = (int) best[2];
newImage.set(x, y, temp);
}
}
System.out.println("Done with the apply");
return newImage;
}
/**
* Writes a ColorImage to a file byteSizing first
*
* @param im the ColorImage
*/
public void writeByteSized(ColorImage im) throws IOException {
X = im.X();
Y = im.Y();
int[] color = new int[3];
// convert to byte size
ColorImage tmpim = (ColorImage) im.copy();
tmpim.byteSize();
// write PPM in raw format
writeRawPPMHeader(X, Y);
for (int y = 0; y < Y; y++) {
for (int x = 0; x < X; x++) {
color = tmpim.get(x, y);
data.write((byte) color[0]);
data.write((byte) color[1]);
data.write((byte) color[2]);
}
}
}
/**
* Scales the range of <code>image</code> to an arbitrary min/max. The range used for all planes
* is the global max, min of the image.
*
* @param image ColorImage to scale.
* @return <code>image</code>.
*/
protected Image apply(ColorImage image) {
return apply(image, new ROI(0, 0, image.X() - 1, image.Y() - 1));
}