下面列出了java.awt.image.PixelInterleavedSampleModel#java.awt.image.IndexColorModel 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
JFIFExtensionMarkerSegment(BufferedImage thumbnail)
throws IllegalThumbException {
super(JPEG.APP0);
ColorModel cm = thumbnail.getColorModel();
int csType = cm.getColorSpace().getType();
if (cm.hasAlpha()) {
throw new IllegalThumbException();
}
if (cm instanceof IndexColorModel) {
code = THUMB_PALETTE;
thumb = new JFIFThumbPalette(thumbnail);
} else if (csType == ColorSpace.TYPE_RGB) {
code = THUMB_RGB;
thumb = new JFIFThumbRGB(thumbnail);
} else if (csType == ColorSpace.TYPE_GRAY) {
code = THUMB_JPEG;
thumb = new JFIFThumbJPEG(thumbnail);
} else {
throw new IllegalThumbException();
}
}
/**
* This method takes in input the list of all the sources and calculates the
* total number of bands of the destination image.
*
* @param sources List of the source images
* @return the total number of the destination bands
*/
private static int totalNumBands(List sources)
{
// Initialization
int total = 0;
// Cycle on all the sources
for (int i = 0; i < sources.size(); i++)
{
RenderedImage image = (RenderedImage) sources.get(i);
// If the source ColorModel is IndexColorModel, then the bands are
// defined by its components
if (image.getColorModel() instanceof IndexColorModel)
{
total += image.getColorModel().getNumComponents();
// Else the bands are defined from the SampleModel
}
else
{
total += image.getSampleModel().getNumBands();
}
}
// Total bands number
return total;
}
private static synchronized byte[] getDefaultPalette() {
if (defaultPalette == null) {
BufferedImage img = new BufferedImage(1, 1,
BufferedImage.TYPE_BYTE_INDEXED);
IndexColorModel icm = (IndexColorModel) img.getColorModel();
final int size = icm.getMapSize();
byte[] r = new byte[size];
byte[] g = new byte[size];
byte[] b = new byte[size];
icm.getReds(r);
icm.getGreens(g);
icm.getBlues(b);
defaultPalette = new byte[size * 3];
for (int i = 0; i < size; i++) {
defaultPalette[3 * i + 0] = r[i];
defaultPalette[3 * i + 1] = g[i];
defaultPalette[3 * i + 2] = b[i];
}
}
return defaultPalette;
}
private IIOMetadataNode gethISTNode(BufferedImage bi) {
IndexColorModel icm = (IndexColorModel)bi.getColorModel();
int mapSize = icm.getMapSize();
int[] hist = new int[mapSize];
Arrays.fill(hist, 0);
Raster r = bi.getData();
for (int y = 0; y < bi.getHeight(); y++) {
for (int x = 0; x < bi.getWidth(); x++) {
int s = r.getSample(x, y, 0);
hist[s] ++;
}
}
IIOMetadataNode hIST = new IIOMetadataNode("hIST");
for (int i = 0; i < hist.length; i++) {
IIOMetadataNode n = new IIOMetadataNode("hISTEntry");
n.setAttribute("index", "" + i);
n.setAttribute("value", "" + hist[i]);
hIST.appendChild(n);
}
return hIST;
}
public static SurfaceData createDataBP(BufferedImage bImg,
SurfaceType sType,
double scaleX, double scaleY)
{
BytePackedRaster bpRaster =
(BytePackedRaster)bImg.getRaster();
BufImgSurfaceData bisd =
new BufImgSurfaceData(bpRaster.getDataBuffer(), bImg, sType,
scaleX, scaleY);
ColorModel cm = bImg.getColorModel();
IndexColorModel icm = ((cm instanceof IndexColorModel)
? (IndexColorModel) cm
: null);
bisd.initRaster(bpRaster.getDataStorage(),
bpRaster.getDataBitOffset() / 8,
bpRaster.getDataBitOffset() & 7,
bpRaster.getWidth(),
bpRaster.getHeight(),
0,
bpRaster.getScanlineStride(),
icm);
return bisd;
}
private IIOMetadataNode gethISTNode(BufferedImage bi) {
IndexColorModel icm = (IndexColorModel)bi.getColorModel();
int mapSize = icm.getMapSize();
int[] hist = new int[mapSize];
Arrays.fill(hist, 0);
Raster r = bi.getData();
for (int y = 0; y < bi.getHeight(); y++) {
for (int x = 0; x < bi.getWidth(); x++) {
int s = r.getSample(x, y, 0);
hist[s] ++;
}
}
IIOMetadataNode hIST = new IIOMetadataNode("hIST");
for (int i = 0; i < hist.length; i++) {
IIOMetadataNode n = new IIOMetadataNode("hISTEntry");
n.setAttribute("index", "" + i);
n.setAttribute("value", "" + hist[i]);
hIST.appendChild(n);
}
return hIST;
}
private BufferedImage createIndexImage(int bpp) {
// calculate palette size
int psize = (1 << bpp);
// prepare palette;
byte[] r = new byte[psize];
byte[] g = new byte[psize];
byte[] b = new byte[psize];
for (int i = 0; i < colors.length; i++) {
r[i] = (byte)(0xff & colors[i].getRed());
g[i] = (byte)(0xff & colors[i].getGreen());
b[i] = (byte)(0xff & colors[i].getBlue());
}
// now prepare appropriate index clor model
IndexColorModel icm = new IndexColorModel(bpp, psize, r, g, b);
return new BufferedImage(w, h, BufferedImage.TYPE_BYTE_INDEXED, icm);
}
public static SurfaceData createDataSC(BufferedImage bImg,
SurfaceType sType,
IndexColorModel icm) {
ShortComponentRaster scRaster =
(ShortComponentRaster)bImg.getRaster();
BufImgSurfaceData bisd =
new BufImgSurfaceData(scRaster.getDataBuffer(), bImg, sType);
bisd.initRaster(scRaster.getDataStorage(),
scRaster.getDataOffset(0) * 2, 0,
scRaster.getWidth(),
scRaster.getHeight(),
scRaster.getPixelStride() * 2,
scRaster.getScanlineStride() * 2,
icm);
return bisd;
}
void write(ImageOutputStream ios,
JPEGImageWriter writer) throws IOException {
super.write(ios, writer); // width and height
// Write the palette (must be 768 bytes)
byte [] palette = new byte[768];
IndexColorModel icm = (IndexColorModel) thumbnail.getColorModel();
byte [] reds = new byte [256];
byte [] greens = new byte [256];
byte [] blues = new byte [256];
icm.getReds(reds);
icm.getGreens(greens);
icm.getBlues(blues);
for (int i = 0; i < 256; i++) {
palette[i*3] = reds[i];
palette[i*3+1] = greens[i];
palette[i*3+2] = blues[i];
}
ios.write(palette);
writePixels(ios, writer);
}
public static SurfaceData createDataSC(BufferedImage bImg,
SurfaceType sType,
IndexColorModel icm) {
ShortComponentRaster scRaster =
(ShortComponentRaster)bImg.getRaster();
BufImgSurfaceData bisd =
new BufImgSurfaceData(scRaster.getDataBuffer(), bImg, sType);
bisd.initRaster(scRaster.getDataStorage(),
scRaster.getDataOffset(0) * 2, 0,
scRaster.getWidth(),
scRaster.getHeight(),
scRaster.getPixelStride() * 2,
scRaster.getScanlineStride() * 2,
icm);
return bisd;
}
private BufferedImage createIndexImage(int bpp) {
// calculate palette size
int psize = (1 << bpp);
// prepare palette;
byte[] r = new byte[psize];
byte[] g = new byte[psize];
byte[] b = new byte[psize];
for (int i = 0; i < colors.length; i++) {
r[i] = (byte)(0xff & colors[i].getRed());
g[i] = (byte)(0xff & colors[i].getGreen());
b[i] = (byte)(0xff & colors[i].getBlue());
}
// now prepare appropriate index clor model
IndexColorModel icm = new IndexColorModel(bpp, psize, r, g, b);
return new BufferedImage(w, h, BufferedImage.TYPE_BYTE_INDEXED, icm);
}
protected BufferedImage createTestImage(int numColors) {
IndexColorModel icm = createTestICM(numColors);
int w = numColors * 10;
int h = 20;
BufferedImage img = new BufferedImage(w, h,
BufferedImage.TYPE_BYTE_INDEXED, icm);
Graphics2D g = img.createGraphics();
for (int i = 0; i < numColors; i++) {
int rgb = icm.getRGB(i);
//System.out.printf("pixel %d, rgb %x\n", i, rgb);
g.setColor(new Color(rgb));
g.fillRect(i * 10, 0, w - i * 10, h);
}
g.dispose();
return img;
}
private static synchronized byte[] getDefaultPalette() {
if (defaultPalette == null) {
BufferedImage img = new BufferedImage(1, 1,
BufferedImage.TYPE_BYTE_INDEXED);
IndexColorModel icm = (IndexColorModel) img.getColorModel();
final int size = icm.getMapSize();
byte[] r = new byte[size];
byte[] g = new byte[size];
byte[] b = new byte[size];
icm.getReds(r);
icm.getGreens(g);
icm.getBlues(b);
defaultPalette = new byte[size * 3];
for (int i = 0; i < size; i++) {
defaultPalette[3 * i + 0] = r[i];
defaultPalette[3 * i + 1] = g[i];
defaultPalette[3 * i + 2] = b[i];
}
}
return defaultPalette;
}
JFIFExtensionMarkerSegment(BufferedImage thumbnail)
throws IllegalThumbException {
super(JPEG.APP0);
ColorModel cm = thumbnail.getColorModel();
int csType = cm.getColorSpace().getType();
if (cm.hasAlpha()) {
throw new IllegalThumbException();
}
if (cm instanceof IndexColorModel) {
code = THUMB_PALETTE;
thumb = new JFIFThumbPalette(thumbnail);
} else if (csType == ColorSpace.TYPE_RGB) {
code = THUMB_RGB;
thumb = new JFIFThumbRGB(thumbnail);
} else if (csType == ColorSpace.TYPE_GRAY) {
code = THUMB_JPEG;
thumb = new JFIFThumbJPEG(thumbnail);
} else {
throw new IllegalThumbException();
}
}
private static void makeImage() {
int scanLineBytes = WIDTH / PIXELS_IN_BYTE;
if ((WIDTH & (PIXELS_IN_BYTE - 1)) != 0) {
// Make sure all the pixels in a scan line fit
scanLineBytes += 1;
}
byte[] bits = new byte[scanLineBytes * HEIGHT];
DataBuffer dataBuf = new DataBufferByte(bits, bits.length, 0);
SampleModel sampleModel = new MultiPixelPackedSampleModel(DataBuffer.TYPE_BYTE,
WIDTH, HEIGHT, BITS_PER_PIXEL);
WritableRaster raster = Raster.createWritableRaster(sampleModel, dataBuf, null);
IndexColorModel indexModel = new IndexColorModel(2, 2, RED, GREEN, BLUE);
BufferedImage bufImage = new BufferedImage(indexModel, raster,
indexModel.isAlphaPremultiplied(), null);
Graphics g = bufImage.getGraphics();
g.drawRect(0, 0, WIDTH - 1, HEIGHT - 1);
g.dispose();
}
public static SurfaceData createDataBC(BufferedImage bImg,
SurfaceType sType,
int primaryBank) {
ByteComponentRaster bcRaster =
(ByteComponentRaster)bImg.getRaster();
BufImgSurfaceData bisd =
new BufImgSurfaceData(bcRaster.getDataBuffer(), bImg, sType);
ColorModel cm = bImg.getColorModel();
IndexColorModel icm = ((cm instanceof IndexColorModel)
? (IndexColorModel) cm
: null);
bisd.initRaster(bcRaster.getDataStorage(),
bcRaster.getDataOffset(primaryBank), 0,
bcRaster.getWidth(),
bcRaster.getHeight(),
bcRaster.getPixelStride(),
bcRaster.getScanlineStride(),
icm);
return bisd;
}
private void Setup() {
balls = new Image[nBalls];
byte red[] = new byte[256];
red[0] = (byte) bgGrey;
byte green[] = new byte[256];
green[0] = (byte) bgGrey;
byte blue[] = new byte[256];
blue[0] = (byte) bgGrey;
for (int r = 0; r < nBalls; r++) {
float b = (float) (r + 1) / nBalls;
for (int i = maxr; i >= 1; --i) {
float d = (float) i / maxr;
red[i] = (byte) blend(blend(Rl, 255, d), bgGrey, b);
green[i] = (byte) blend(blend(Gl, 255, d), bgGrey, b);
blue[i] = (byte) blend(blend(Bl, 255, d), bgGrey, b);
}
IndexColorModel model = new IndexColorModel(8, maxr + 1,
red, green, blue, 0);
balls[r] = applet.createImage(
new MemoryImageSource(R * 2, R * 2, model, data, 0, R * 2));
}
}
private static synchronized byte[] getDefaultPalette() {
if (defaultPalette == null) {
BufferedImage img = new BufferedImage(1, 1,
BufferedImage.TYPE_BYTE_INDEXED);
IndexColorModel icm = (IndexColorModel) img.getColorModel();
final int size = icm.getMapSize();
byte[] r = new byte[size];
byte[] g = new byte[size];
byte[] b = new byte[size];
icm.getReds(r);
icm.getGreens(g);
icm.getBlues(b);
defaultPalette = new byte[size * 3];
for (int i = 0; i < size; i++) {
defaultPalette[3 * i + 0] = r[i];
defaultPalette[3 * i + 1] = g[i];
defaultPalette[3 * i + 2] = b[i];
}
}
return defaultPalette;
}
private static synchronized byte[] getDefaultPalette() {
if (defaultPalette == null) {
BufferedImage img = new BufferedImage(1, 1,
BufferedImage.TYPE_BYTE_INDEXED);
IndexColorModel icm = (IndexColorModel) img.getColorModel();
final int size = icm.getMapSize();
byte[] r = new byte[size];
byte[] g = new byte[size];
byte[] b = new byte[size];
icm.getReds(r);
icm.getGreens(g);
icm.getBlues(b);
defaultPalette = new byte[size * 3];
for (int i = 0; i < size; i++) {
defaultPalette[3 * i + 0] = r[i];
defaultPalette[3 * i + 1] = g[i];
defaultPalette[3 * i + 2] = b[i];
}
}
return defaultPalette;
}
protected RenderedImage getIndexedImage() {
IndexColorModel icm = getIndexColorModel();
BufferedImage dst =
new BufferedImage(src.getWidth(), src.getHeight(),
BufferedImage.TYPE_BYTE_INDEXED, icm);
WritableRaster wr = dst.getRaster();
for (int y =0; y < dst.getHeight(); y++) {
for (int x = 0; x < dst.getWidth(); x++) {
Color aColor = getSrcColor(x,y);
wr.setSample(x, y, 0, findColorIndex(root, aColor));
}
}
return dst;
}
static IndexColorModel createIndexColorModel() {
BufferedImage ex = new BufferedImage(1, 1,
BufferedImage.TYPE_BYTE_INDEXED);
IndexColorModel icm = (IndexColorModel) ex.getColorModel();
int SIZE = 256;
byte[] r = new byte[SIZE];
byte[] g = new byte[SIZE];
byte[] b = new byte[SIZE];
byte[] a = new byte[SIZE];
icm.getReds(r);
icm.getGreens(g);
icm.getBlues(b);
java.util.Arrays.fill(a, (byte) 255);
r[0] = g[0] = b[0] = a[0] = 0; // transparent
return new IndexColorModel(8, SIZE, r, g, b, a);
}
private void Setup() {
balls = new Image[nBalls];
byte red[] = new byte[256];
red[0] = (byte) bgGrey;
byte green[] = new byte[256];
green[0] = (byte) bgGrey;
byte blue[] = new byte[256];
blue[0] = (byte) bgGrey;
for (int r = 0; r < nBalls; r++) {
float b = (float) (r + 1) / nBalls;
for (int i = maxr; i >= 1; --i) {
float d = (float) i / maxr;
red[i] = (byte) blend(blend(Rl, 255, d), bgGrey, b);
green[i] = (byte) blend(blend(Gl, 255, d), bgGrey, b);
blue[i] = (byte) blend(blend(Bl, 255, d), bgGrey, b);
}
IndexColorModel model = new IndexColorModel(8, maxr + 1,
red, green, blue, 0);
balls[r] = applet.createImage(
new MemoryImageSource(R * 2, R * 2, model, data, 0, R * 2));
}
}
public static SurfaceData createDataSC(BufferedImage bImg,
SurfaceType sType,
IndexColorModel icm) {
ShortComponentRaster scRaster =
(ShortComponentRaster)bImg.getRaster();
BufImgSurfaceData bisd =
new BufImgSurfaceData(scRaster.getDataBuffer(), bImg, sType);
bisd.initRaster(scRaster.getDataStorage(),
scRaster.getDataOffset(0) * 2, 0,
scRaster.getWidth(),
scRaster.getHeight(),
scRaster.getPixelStride() * 2,
scRaster.getScanlineStride() * 2,
icm);
return bisd;
}
private IIOMetadataNode gethISTNode(BufferedImage bi) {
IndexColorModel icm = (IndexColorModel)bi.getColorModel();
int mapSize = icm.getMapSize();
int[] hist = new int[mapSize];
Arrays.fill(hist, 0);
Raster r = bi.getData();
for (int y = 0; y < bi.getHeight(); y++) {
for (int x = 0; x < bi.getWidth(); x++) {
int s = r.getSample(x, y, 0);
hist[s] ++;
}
}
IIOMetadataNode hIST = new IIOMetadataNode("hIST");
for (int i = 0; i < hist.length; i++) {
IIOMetadataNode n = new IIOMetadataNode("hISTEntry");
n.setAttribute("index", "" + i);
n.setAttribute("value", "" + hist[i]);
hIST.appendChild(n);
}
return hIST;
}
private void Setup() {
balls = new Image[nBalls];
byte red[] = new byte[256];
red[0] = (byte) bgGrey;
byte green[] = new byte[256];
green[0] = (byte) bgGrey;
byte blue[] = new byte[256];
blue[0] = (byte) bgGrey;
for (int r = 0; r < nBalls; r++) {
float b = (float) (r + 1) / nBalls;
for (int i = maxr; i >= 1; --i) {
float d = (float) i / maxr;
red[i] = (byte) blend(blend(Rl, 255, d), bgGrey, b);
green[i] = (byte) blend(blend(Gl, 255, d), bgGrey, b);
blue[i] = (byte) blend(blend(Bl, 255, d), bgGrey, b);
}
IndexColorModel model = new IndexColorModel(8, maxr + 1,
red, green, blue, 0);
balls[r] = applet.createImage(
new MemoryImageSource(R * 2, R * 2, model, data, 0, R * 2));
}
}
protected BufferedImage createTestImage(int numColors) {
IndexColorModel icm = createTestICM(numColors);
int w = numColors * 10;
int h = 20;
BufferedImage img = new BufferedImage(w, h,
BufferedImage.TYPE_BYTE_INDEXED, icm);
Graphics2D g = img.createGraphics();
for (int i = 0; i < numColors; i++) {
int rgb = icm.getRGB(i);
//System.out.printf("pixel %d, rgb %x\n", i, rgb);
g.setColor(new Color(rgb));
g.fillRect(i * 10, 0, w - i * 10, h);
}
g.dispose();
return img;
}
@Override
public ColorModel convert(FieldAccessor fa, Instance instance) throws FieldAccessor.InvalidFieldException {
int bits = fa.getInt(instance, "pixel_bits"); // NOI18N
int[] cmap = fa.getIntArray(instance, "rgb", false);// NOI18N
int size = fa.getInt(instance, "map_size"); // NOI18N
int trans = fa.getInt(instance, "transparent_index"); // NOI18N
int transferType = fa.getInt(instance, "transferType"); // NOI18N
return new IndexColorModel(bits, size, cmap, 0, true, trans, transferType);
}
private static BufferedImage createFrame(int[] palette) {
IndexColorModel icm = new IndexColorModel(getNumBits(palette.length),
palette.length, palette, 0, false, -1, DataBuffer.TYPE_BYTE);
WritableRaster wr = icm.createCompatibleWritableRaster(w, h);
int[] samples = new int[w * h];
Arrays.fill(samples, 0);
wr.setSamples(0, 0, w, h, 0, samples);
BufferedImage img = new BufferedImage(icm, wr, false, null);
return img;
}
JFIFThumbPalette(BufferedImage thumb) throws IllegalThumbException {
super(thumb);
IndexColorModel icm = (IndexColorModel) thumbnail.getColorModel();
if (icm.getMapSize() > 256) {
throw new IllegalThumbException();
}
}
JFIFThumbPalette(BufferedImage thumb) throws IllegalThumbException {
super(thumb);
IndexColorModel icm = (IndexColorModel) thumbnail.getColorModel();
if (icm.getMapSize() > 256) {
throw new IllegalThumbException();
}
}