public static float[] getHSB(Color color) {
float[] rgb = new float[4];
float[] hsb = new float[3];
color.getComponents(rgb);
int r = (int) (rgb[0] * 256);
int g = (int) (rgb[1] * 256);
int b = (int) (rgb[2] * 256);
Color.RGBtoHSB(r, g, b, hsb);
return hsb;
}
public static Color brightnessAdjust(Color original, float brightness) {
float[] hsb = getHSB(original);
hsb[2] = brightness;
if (hsb[2] < 0.0f) hsb[2] = 0.0f;
else if (hsb[2] > 1.0f) hsb[2] = 1.0f;
int newRGB = Color.HSBtoRGB(hsb[0], hsb[1], hsb[2]);
return new Color(newRGB);
}
public static Color saturationAdjust(Color original, float saturation) {
float[] hsb = getHSB(original);
hsb[1] = saturation;
if (hsb[1] < 0.0f) hsb[1] = 0.0f;
else if (hsb[1] > 1.0f) hsb[1] = 1.0f;
int newRGB = Color.HSBtoRGB(hsb[0], hsb[1], 1.0f);
return new Color(newRGB);
}
public static Color relativelyTransparent(Color original, float alpha) {
ColorSpace srbg = ICC_ColorSpace.getInstance(ColorSpace.CS_sRGB);
double originalAlpha = 1.0 * original.getAlpha() / 255;
alpha *= originalAlpha;
return new Color(srbg, original.getColorComponents(null), alpha);
}
public BufferedImage getBufferedImage(int type, Color c) {
BufferedImage image = null;
float[] colComp = new float[3];
c.getRGBColorComponents(colComp);
double red = (double) colComp[0];
double green = (double) colComp[1];
double blue = (double) colComp[2];
// System.out.println("blue, green, red = "+ blue +", " + green + ", " + red);
double x = 0.0;
double x2;
switch (type) {
case ScalarImage.TYPE_BYTE_RANDOM:
{
int numCol = 256;
byte[] bBuf = new byte[numCol * 3];
blue *= 255 * 4.;
green *= 255 * 4.;
red *= 255 * 4.;
double delta = 1.0 / (double) (numCol + 1);
int j = 0;
for (int i = 0; i < numCol; i++) {
if (i % 5 == 0) x = 0.7 * Math.random() + 0.3 * x;
x2 = x * x;
bBuf[j++] = (byte) clamp((510 - red) * x2 + (red - 255) * x);
bBuf[j++] = (byte) clamp((510 - green) * x2 + (green - 255) * x);
bBuf[j++] = (byte) clamp((510 - blue) * x2 + (blue - 255) * x);
// x += delta;
}
IndexColorModel cm = new IndexColorModel(8, numCol, bBuf, 0, false);
// image = new
// BufferedImage(width,height,BufferedImage.TYPE_BYTE_INDEXED,cm);
byte[] idxBuffer = new byte[size];
for (int i = 0; i < size; i++) {
idxBuffer[i] = (byte) (clamp(f[i] * 255.));
}
DataBufferByte dataBuffer = new DataBufferByte(idxBuffer, size);
int idxOffset[] = {0};
int idxBits[] = {8};
try {
ComponentSampleModel idxSampleModel =
new ComponentSampleModel(DataBuffer.TYPE_BYTE, width, height, 1, width, idxOffset);
WritableRaster rasterIdx =
java.awt.image.Raster.createWritableRaster(
idxSampleModel, dataBuffer, new Point(0, 0));
image = new BufferedImage(cm, rasterIdx, false, null);
} catch (Exception e) {
System.out.println("Exception caught while acquiring image:");
System.out.println(e.getMessage());
}
}
break;
case BufferedImage.TYPE_BYTE_INDEXED:
{
int numCol = 256;
byte[] bBuf = new byte[numCol * 3];
blue *= 255 * 4.;
green *= 255 * 4.;
red *= 255 * 4.;
double delta = 1.0 / (double) (numCol + 1);
int j = 0;
for (int i = 0; i < numCol; i++) {
x2 = x * x;
bBuf[j++] = (byte) clamp((510 - red) * x2 + (red - 255) * x);
bBuf[j++] = (byte) clamp((510 - green) * x2 + (green - 255) * x);
bBuf[j++] = (byte) clamp((510 - blue) * x2 + (blue - 255) * x);
x += delta;
}
IndexColorModel cm = new IndexColorModel(8, numCol, bBuf, 0, false);
// image = new
// BufferedImage(width,height,BufferedImage.TYPE_BYTE_INDEXED,cm);
byte[] idxBuffer = new byte[size];
for (int i = 0; i < size; i++) {
idxBuffer[i] = (byte) (clamp(f[i] * 255.));
}
DataBufferByte dataBuffer = new DataBufferByte(idxBuffer, size);
int idxOffset[] = {0};
int idxBits[] = {8};
try {
ComponentSampleModel idxSampleModel =
new ComponentSampleModel(DataBuffer.TYPE_BYTE, width, height, 1, width, idxOffset);
WritableRaster rasterIdx =
java.awt.image.Raster.createWritableRaster(
idxSampleModel, dataBuffer, new Point(0, 0));
image = new BufferedImage(cm, rasterIdx, false, null);
} catch (Exception e) {
System.out.println("Exception caught while acquiring image:");
System.out.println(e.getMessage());
}
}
break;
case BufferedImage.TYPE_BYTE_GRAY:
break;
case BufferedImage.TYPE_3BYTE_BGR:
default:
byte[] byteBuffer = new byte[size * 3];
blue *= 255 * 4.;
green *= 255 * 4.;
red *= 255 * 4.;
int j = 0;
for (int i = 0; i < size; i++) {
x = f[i];
x2 = x * x;
/*
byteBuffer[j++] = (byte)clamp( ( 2 * 255 - 4 * red ) * x * x + ( 4 * red - 255 ) * x);
byteBuffer[j++] = (byte)clamp( ( 2 * 255 - 4 * green ) * x * x + ( 4 * green - 255 ) * x);
byteBuffer[j++] = (byte)clamp( ( 2 * 255 - 4 * blue ) * x * x + ( 4 * blue - 255 ) * x);
*/
byteBuffer[j++] = (byte) clamp((510 - red) * x2 + (red - 255) * x);
byteBuffer[j++] = (byte) clamp((510 - green) * x2 + (green - 255) * x);
byteBuffer[j++] = (byte) clamp((510 - blue) * x2 + (blue - 255) * x);
}
DataBufferByte dataBuffer = new DataBufferByte(byteBuffer, size * 3);
int componentOffset[] = {0, 1, 2};
int componentBits[] = {8, 8, 8};
try {
WritableRaster raster =
java.awt.image.Raster.createWritableRaster(
new PixelInterleavedSampleModel(
DataBuffer.TYPE_BYTE, width, height, 3, width * 3, componentOffset),
dataBuffer,
new Point(0, 0));
image =
new BufferedImage(
new ComponentColorModel(
ColorSpace.getInstance(ColorSpace.CS_LINEAR_RGB),
componentBits,
false,
false,
ColorModel.OPAQUE,
DataBuffer.TYPE_BYTE),
raster,
false,
null);
} catch (Exception e) {
System.out.println("Exception caught while acquiring image:");
System.out.println(e.getMessage());
}
break;
}
return image;
}