Java Code Examples for java.awt.image.ColorModel#getBlue()
The following examples show how to use
java.awt.image.ColorModel#getBlue() .
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Example 1
| Source File: Picture.java From Face-Recognition with GNU General Public License v3.0 | 6 votes |
|
public double[] getImagePixels() {
int w = img.getWidth(this);
int h = img.getHeight(this);
int[] pixels = new int[w * h];
PixelGrabber pg = new PixelGrabber(img, 0, 0, w, h, pixels, 0, w);
try {
pg.grabPixels();
} catch (InterruptedException e) {
System.err.println("interrupted waiting for pixels!");
return new double[0];
}
if ((pg.getStatus() & ImageObserver.ABORT) != 0) {
System.err.println("image fetch aborted or errored");
return new double[0];
}
double[] ret =new double[w*h];
ColorModel cm = pg.getColorModel();
for (int i=0; i<ret.length; i++)
{
ret[i] = cm.getBlue(pixels[i]) + cm.getGreen(pixels[i]) + cm.getRed(pixels[i]);
ret[i] /= 3.0;
}
return ret;
}
Example 2
| Source File: Picture.java From Face-Recognition with GNU General Public License v3.0 | 6 votes |
|
public double[] getImageColourPixels() {
int w = img.getWidth(this);
int h = img.getHeight(this);
int[] pixels = new int[w * h];
PixelGrabber pg = new PixelGrabber(img, 0, 0, w, h, pixels, 0, w);
try {
pg.grabPixels();
} catch (InterruptedException e) {
System.err.println("interrupted waiting for pixels!");
return new double[0];
}
if ((pg.getStatus() & ImageObserver.ABORT) != 0) {
System.err.println("image fetch aborted or errored");
return new double[0];
}
double[] ret =new double[w*h];
ColorModel cm = pg.getColorModel();
for (int i=0; i<ret.length; i++)
{
Color c=new Color(cm.getRed(pixels[i]),cm.getGreen(pixels[i]),cm.getBlue(pixels[i]));
ret[i]=c.getRGB();
}
return ret;
}
Example 3
| Source File: ImageFilter.java From JewelCrawler with GNU General Public License v3.0 | 5 votes |
|
/** 图像二值化 */
public BufferedImage changeGrey() {
PixelGrabber pg = new PixelGrabber(image.getSource(), 0, 0, iw, ih, pixels, 0, iw);
try {
pg.grabPixels();
} catch (InterruptedException e) {
e.printStackTrace();
}
// 设定二值化的域值，默认值为100
int grey = 100;
// 对图像进行二值化处理，Alpha值保持不变
ColorModel cm = ColorModel.getRGBdefault();
for (int i = 0; i < iw * ih; i++) {
int red, green, blue;
int alpha = cm.getAlpha(pixels[i]);
if (cm.getRed(pixels[i]) > grey) {
red = 255;
} else {
red = 0;
}
if (cm.getGreen(pixels[i]) > grey) {
green = 255;
} else {
green = 0;
}
if (cm.getBlue(pixels[i]) > grey) {
blue = 255;
} else {
blue = 0;
}
pixels[i] = alpha << 24 | red << 16 | green << 8 | blue;
}
// 将数组中的象素产生一个图像
return ImageIOHelper.imageProducerToBufferedImage(new MemoryImageSource(iw, ih, pixels, 0, iw));
}
Example 4
| Source File: ImageFilter.java From JewelCrawler with GNU General Public License v3.0 | 5 votes |
|
/** 线性灰度变换 */
public BufferedImage lineGrey() {
PixelGrabber pg = new PixelGrabber(image.getSource(), 0, 0, iw, ih, pixels, 0, iw);
try {
pg.grabPixels();
} catch (InterruptedException e) {
e.printStackTrace();
}
// 对图像进行进行线性拉伸，Alpha值保持不变
ColorModel cm = ColorModel.getRGBdefault();
for (int i = 0; i < iw * ih; i++) {
int alpha = cm.getAlpha(pixels[i]);
int red = cm.getRed(pixels[i]);
int green = cm.getGreen(pixels[i]);
int blue = cm.getBlue(pixels[i]);
// 增加了图像的亮度
red = (int) (1.1 * red + 30);
green = (int) (1.1 * green + 30);
blue = (int) (1.1 * blue + 30);
if (red >= 255) {
red = 255;
}
if (green >= 255) {
green = 255;
}
if (blue >= 255) {
blue = 255;
}
pixels[i] = alpha << 24 | red << 16 | green << 8 | blue;
}
// 将数组中的象素产生一个图像
return ImageIOHelper.imageProducerToBufferedImage(new MemoryImageSource(iw, ih, pixels, 0, iw));
}
Example 5
| Source File: PNGEncoder.java From tn5250j with GNU General Public License v2.0 | 5 votes |
|
/**
* @param outarray
* @param pixelarray
* @param cmodel
* @param width
* @param height
* @return
* @throws EncoderException
*/
public int compress(byte[] outarray, int[] pixelarray, ColorModel cmodel, int width, int height) throws EncoderException {
byte[] inarray = new byte[(pixelarray.length * 3) + height];
for (int i = 0; i < height; i++) {
inarray[i * ((width * 3) + 1)] = byteFromInt(0);
for (int j = 0; j < (width * 3); j+= 3) {
inarray[(i * ((width * 3) + 1)) + j + 1] = (byte) cmodel.getRed(pixelarray[(i * width) + (int)Math.floor(j / 3)]);
inarray[(i * ((width * 3) + 1)) + j + 2] = (byte) cmodel.getGreen(pixelarray[(i * width) + (int)Math.floor(j / 3)]);
inarray[(i * ((width * 3) + 1)) + j + 3] = (byte) cmodel.getBlue(pixelarray[(i * width) + (int)Math.floor(j / 3)]);
}
}
return compressInternal(outarray, inarray);
}
Example 6
| Source File: WebP.java From webp-imageio with Apache License 2.0 | 5 votes |
|
private static byte[] extractGenericRGB( RenderedImage aRi, int aWidth, int aHeight, ColorModel aColorModel ) {
Object dataElements = null;
byte[] rgbData = new byte[ aWidth * aHeight * 3 ];
for ( int b = 0, y = 0; y < aHeight; y++ ) {
for ( int x = 0; x < aWidth; x++, b += 3 ) {
dataElements = aRi.getData().getDataElements( x, y, dataElements );
rgbData[ b ] = ( byte ) aColorModel.getRed( dataElements );
rgbData[ b + 1 ] = ( byte ) aColorModel.getGreen( dataElements );
rgbData[ b + 2 ] = ( byte ) aColorModel.getBlue( dataElements );
}
}
return rgbData;
}
Example 7
| Source File: WebP.java From webp-imageio with Apache License 2.0 | 5 votes |
|
private static byte[] extractGenericRGBA( RenderedImage aRi, int aWidth, int aHeight, ColorModel aColorModel ) {
Object dataElements = null;
byte[] rgbData = new byte[ aWidth * aHeight * 4 ];
for ( int b = 0, y = 0; y < aHeight; y++ ) {
for ( int x = 0; x < aWidth; x++, b += 4 ) {
dataElements = aRi.getData().getDataElements( x, y, dataElements );
rgbData[ b ] = ( byte ) aColorModel.getRed( dataElements );
rgbData[ b + 1 ] = ( byte ) aColorModel.getGreen( dataElements );
rgbData[ b + 2 ] = ( byte ) aColorModel.getBlue( dataElements );
rgbData[ b + 3 ] = ( byte ) aColorModel.getAlpha( dataElements );
}
}
return rgbData;
}
Example 8
| Source File: SoftMask.java From gcs with Mozilla Public License 2.0 | 4 votes |
|
@Override
public Raster getRaster(int x1, int y1, int w, int h)
{
Raster raster = context.getRaster(x1, y1, w, h);
ColorModel rasterCM = context.getColorModel();
float[] input = null;
Float[] map = null;
if (transferFunction != null)
{
map = new Float[256];
input = new float[1];
}
// buffer
WritableRaster output = getColorModel().createCompatibleWritableRaster(w, h);
// the soft mask has its own bbox
x1 = x1 - (int)bboxDevice.getX();
y1 = y1 - (int)bboxDevice.getY();
int[] gray = new int[4];
Object pixelInput = null;
int[] pixelOutput = new int[4];
for (int y = 0; y < h; y++)
{
for (int x = 0; x < w; x++)
{
pixelInput = raster.getDataElements(x, y, pixelInput);
pixelOutput[0] = rasterCM.getRed(pixelInput);
pixelOutput[1] = rasterCM.getGreen(pixelInput);
pixelOutput[2] = rasterCM.getBlue(pixelInput);
pixelOutput[3] = rasterCM.getAlpha(pixelInput);
// get the alpha value from the gray mask, if within mask bounds
gray[0] = 0;
if (x1 + x >= 0 && y1 + y >= 0 && x1 + x < mask.getWidth() && y1 + y < mask.getHeight())
{
mask.getRaster().getPixel(x1 + x, y1 + y, gray);
int g = gray[0];
if (transferFunction != null)
{
// apply transfer function
try
{
if (map[g] != null)
{
// was calculated before
pixelOutput[3] = Math.round(pixelOutput[3] * map[g]);
}
else
{
// calculate and store in map
input[0] = g / 255f;
float f = transferFunction.eval(input)[0];
map[g] = f;
pixelOutput[3] = Math.round(pixelOutput[3] * f);
}
}
catch (IOException ex)
{
// ignore exception, treat as outside
pixelOutput[3] = Math.round(pixelOutput[3] * (bc / 255f));
}
}
else
{
pixelOutput[3] = Math.round(pixelOutput[3] * (g / 255f));
}
}
else
{
pixelOutput[3] = Math.round(pixelOutput[3] * (bc / 255f));
}
output.setPixel(x, y, pixelOutput);
}
}
return output;
}
Example 9
| Source File: ImageFilter.java From JewelCrawler with GNU General Public License v3.0 | 4 votes |
|
/** 提升清晰度,进行锐化 */
public BufferedImage sharp() {
PixelGrabber pg = new PixelGrabber(image.getSource(), 0, 0, iw, ih, pixels, 0, iw);
try {
pg.grabPixels();
} catch (InterruptedException e) {
e.printStackTrace();
}
// 象素的中间变量
int tempPixels[] = new int[iw * ih];
for (int i = 0; i < iw * ih; i++) {
tempPixels[i] = pixels[i];
}
// 对图像进行尖锐化处理，Alpha值保持不变
ColorModel cm = ColorModel.getRGBdefault();
for (int i = 1; i < ih - 1; i++) {
for (int j = 1; j < iw - 1; j++) {
int alpha = cm.getAlpha(pixels[i * iw + j]);
// 对图像进行尖锐化
int red6 = cm.getRed(pixels[i * iw + j + 1]);
int red5 = cm.getRed(pixels[i * iw + j]);
int red8 = cm.getRed(pixels[(i + 1) * iw + j]);
int sharpRed = Math.abs(red6 - red5) + Math.abs(red8 - red5);
int green5 = cm.getGreen(pixels[i * iw + j]);
int green6 = cm.getGreen(pixels[i * iw + j + 1]);
int green8 = cm.getGreen(pixels[(i + 1) * iw + j]);
int sharpGreen = Math.abs(green6 - green5) + Math.abs(green8 - green5);
int blue5 = cm.getBlue(pixels[i * iw + j]);
int blue6 = cm.getBlue(pixels[i * iw + j + 1]);
int blue8 = cm.getBlue(pixels[(i + 1) * iw + j]);
int sharpBlue = Math.abs(blue6 - blue5) + Math.abs(blue8 - blue5);
if (sharpRed > 255) {
sharpRed = 255;
}
if (sharpGreen > 255) {
sharpGreen = 255;
}
if (sharpBlue > 255) {
sharpBlue = 255;
}
tempPixels[i * iw + j] = alpha << 24 | sharpRed << 16 | sharpGreen << 8 | sharpBlue;
}
}
// 将数组中的象素产生一个图像
return ImageIOHelper.imageProducerToBufferedImage(new MemoryImageSource(iw, ih, tempPixels, 0, iw));
}
Example 10
| Source File: SoftMask.java From sambox with Apache License 2.0 | 4 votes |
|
@Override
public Raster getRaster(int x1, int y1, int w, int h)
{
Raster raster = context.getRaster(x1, y1, w, h);
ColorModel rasterCM = context.getColorModel();
float[] input = null;
Float[] map = null;
if (transferFunction != null)
{
map = new Float[256];
input = new float[1];
}
// buffer
WritableRaster output = getColorModel().createCompatibleWritableRaster(w, h);
// the soft mask has its own bbox
x1 = x1 - (int) bboxDevice.getX();
y1 = y1 - (int) bboxDevice.getY();
int[] gray = new int[4];
Object pixelInput = null;
int[] pixelOutput = new int[4];
for (int y = 0; y < h; y++)
{
for (int x = 0; x < w; x++)
{
pixelInput = raster.getDataElements(x, y, pixelInput);
pixelOutput[0] = rasterCM.getRed(pixelInput);
pixelOutput[1] = rasterCM.getGreen(pixelInput);
pixelOutput[2] = rasterCM.getBlue(pixelInput);
pixelOutput[3] = rasterCM.getAlpha(pixelInput);
// get the alpha value from the gray mask, if within mask bounds
gray[0] = 0;
if (x1 + x >= 0 && y1 + y >= 0 && x1 + x < mask.getWidth()
&& y1 + y < mask.getHeight())
{
mask.getRaster().getPixel(x1 + x, y1 + y, gray);
int g = gray[0];
if (transferFunction != null)
{
// apply transfer function
try
{
if (map[g] != null)
{
// was calculated before
pixelOutput[3] = Math.round(pixelOutput[3] * map[g]);
}
else
{
// calculate and store in map
input[0] = g / 255f;
float f = transferFunction.eval(input)[0];
map[g] = f;
pixelOutput[3] = Math.round(pixelOutput[3] * f);
}
}
catch (IOException ex)
{
// ignore exception, treat as outside
pixelOutput[3] = Math.round(pixelOutput[3] * (bc / 255f));
}
}
else
{
pixelOutput[3] = Math.round(pixelOutput[3] * (g / 255f));
}
}
else
{
pixelOutput[3] = Math.round(pixelOutput[3] * (bc / 255f));
}
output.setPixel(x, y, pixelOutput);
}
}
return output;
}
