Java Code Examples for java.awt.image.WritableRaster#setPixels()
The following examples show how to use
java.awt.image.WritableRaster#setPixels() .
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Example 1
| Source File: DCTFilter.java From gcs with Mozilla Public License 2.0 | 6 votes |
|
private WritableRaster fromBGRtoRGB(Raster raster)
{
WritableRaster writableRaster = raster.createCompatibleWritableRaster();
int width = raster.getWidth();
int height = raster.getHeight();
int w3 = width * 3;
int[] tab = new int[w3];
//BEWARE: handling the full image at a time is slower than one line at a time
for (int y = 0; y < height; y++)
{
raster.getPixels(0, y, width, 1, tab);
for (int off = 0; off < w3; off += 3)
{
int tmp = tab[off];
tab[off] = tab[off + 2];
tab[off + 2] = tmp;
}
writableRaster.setPixels(0, y, width, 1, tab);
}
return writableRaster;
}
Example 2
| Source File: MapRenderer.java From dsworkbench with Apache License 2.0 | 6 votes |
|
@Override
public Raster getRaster(int x, int y, int w, int h) {
WritableRaster raster = getColorModel().createCompatibleWritableRaster(w, h);
int[] data = new int[w * h * 4];
for (int j = 0; j < h; j++) {
for (int i = 0; i < w; i++) {
double distance = mPoint.distance(x + i, y + j);
double radius = mRadius.distance(0, 0);
double ratio = distance / radius;
if (ratio > 1.0) {
ratio = 1.0;
}
int base = (j * w + i) * 4;
data[base] = (int) (color1.getRed() + ratio * (color2.getRed() - color1.getRed()));
data[base + 1] = (int) (color1.getGreen() + ratio * (color2.getGreen() - color1.getGreen()));
data[base + 2] = (int) (color1.getBlue() + ratio * (color2.getBlue() - color1.getBlue()));
data[base + 3] = (int) (color1.getAlpha() + ratio * (color2.getAlpha() - color1.getAlpha()));
}
}
raster.setPixels(0, 0, w, h, data);
return raster;
}
Example 3
| Source File: RGBCompositeContext.java From scrimage with Apache License 2.0 | 6 votes |
|
public void compose(Raster src, Raster dstIn, WritableRaster dstOut) {
float alpha = this.alpha;
int[] srcPix = null;
int[] dstPix = null;
int x = dstOut.getMinX();
int w = dstOut.getWidth();
int y0 = dstOut.getMinY();
int y1 = y0 + dstOut.getHeight();
for (int y = y0; y < y1; y++) {
srcPix = src.getPixels(x, y, w, 1, srcPix);
dstPix = dstIn.getPixels(x, y, w, 1, dstPix);
composeRGB(srcPix, dstPix, alpha);
dstOut.setPixels(x, y, w, 1, dstPix);
}
}
Example 4
| Source File: RGBComposite.java From Pixelitor with GNU General Public License v3.0 | 6 votes |
|
@Override
public void compose(Raster src, Raster dstIn, WritableRaster dstOut) {
float alpha = this.alpha;
int[] srcPix = null;
int[] dstPix = null;
int x = dstOut.getMinX();
int w = dstOut.getWidth();
int y0 = dstOut.getMinY();
int y1 = y0 + dstOut.getHeight();
for (int y = y0; y < y1; y++) {
srcPix = src.getPixels(x, y, w, 1, srcPix);
dstPix = dstIn.getPixels(x, y, w, 1, dstPix);
// int srclength = srcPix.length;
// int dstlength = dstPix.length;
// if(srclength > dstlength) {
// continue;
// }
// System.out.println("RGBComposite$RGBCompositeContext.compose dstlength = " + dstlength + ", srclength = " + srclength);
composeRGB(srcPix, dstPix, alpha);
dstOut.setPixels(x, y, w, 1, dstPix);
}
}
Example 5
| Source File: DCTFilter.java From sambox with Apache License 2.0 | 6 votes |
|
private WritableRaster fromBGRtoRGB(Raster raster)
{
WritableRaster writableRaster = raster.createCompatibleWritableRaster();
int width = raster.getWidth();
int height = raster.getHeight();
int w3 = width * 3;
int[] tab = new int[w3];
// BEWARE: handling the full image at a time is slower than one line at a time
for (int y = 0; y < height; y++)
{
raster.getPixels(0, y, width, 1, tab);
for (int off = 0; off < w3; off += 3)
{
int tmp = tab[off];
tab[off] = tab[off + 2];
tab[off + 2] = tmp;
}
writableRaster.setPixels(0, y, width, 1, tab);
}
return writableRaster;
}
Example 6
| Source File: ImageConvert.java From MyBox with Apache License 2.0 | 5 votes |
|
public static void invertPixelValue(WritableRaster raster) {
int height = raster.getHeight();
int width = raster.getWidth();
int stride = width * 4;
int[] pixelRow = new int[stride];
for (int h = 0; h < height; h++) {
raster.getPixels(0, h, width, 1, pixelRow);
for (int x = 0; x < stride; x++) {
pixelRow[x] = 255 - pixelRow[x];
}
raster.setPixels(0, h, width, 1, pixelRow);
}
}
Example 7
| Source File: RVizVisualization.java From coordination_oru with GNU General Public License v3.0 | 5 votes |
|
private BufferedImage toBlackAndWhite(BufferedImage image, int threshold) {
BufferedImage result = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_BYTE_GRAY);
result.getGraphics().drawImage(image, 0, 0, null);
WritableRaster raster = result.getRaster();
int[] pixels = new int[image.getWidth()];
for (int y = 0; y < image.getHeight(); y++) {
raster.getPixels(0, y, image.getWidth(), 1, pixels);
for (int i = 0; i < pixels.length; i++) {
if (pixels[i] < threshold) pixels[i] = 0;
else pixels[i] = 255;
}
raster.setPixels(0, y, image.getWidth(), 1, pixels);
}
return result;
}
Example 8
| Source File: RoundGradientContext.java From chipster with MIT License | 5 votes |
|
public Raster getRaster(int x, int y, int w, int h) {
WritableRaster raster =
getColorModel().createCompatibleWritableRaster(w, h);
int[] data = new int[w * h * 4];
for (int j = 0; j < h; j++) {
for (int i = 0; i < w; i++) {
double distance = mPoint.distance(x + i, y + j);
double radius = mRadius.distance(0, 0);
double ratio = distance / radius;
if (ratio > 1.0)
ratio = 1.0;
int base = (j * w + i) * 4;
data[base + 0] = (int)(mC1.getRed() + ratio *
(mC2.getRed() - mC1.getRed()));
data[base + 1] = (int)(mC1.getGreen() + ratio *
(mC2.getGreen() - mC1.getGreen()));
data[base + 2] = (int)(mC1.getBlue() + ratio *
(mC2.getBlue() - mC1.getBlue()));
data[base + 3] = (int)(mC1.getAlpha() + ratio *
(mC2.getAlpha() - mC1.getAlpha()));
}
}
raster.setPixels(0, 0, w, h, data);
return raster;
}
Example 9
| Source File: JPEGImageWriter.java From Bytecoder with Apache License 2.0 | 4 votes |
|
/**
* Put the scanline y of the source ROI view Raster into the
* 1-line Raster for writing. This handles ROI and band
* rearrangements, and expands indexed images. Subsampling is
* done in the native code.
* This is called by the native code.
*/
private void grabPixels(int y) {
Raster sourceLine = null;
if (indexed) {
sourceLine = srcRas.createChild(sourceXOffset,
sourceYOffset+y,
sourceWidth, 1,
0, 0,
new int [] {0});
// If the image has BITMASK transparency, we need to make sure
// it gets converted to 32-bit ARGB, because the JPEG encoder
// relies upon the full 8-bit alpha channel.
boolean forceARGB =
(indexCM.getTransparency() != Transparency.OPAQUE);
BufferedImage temp = indexCM.convertToIntDiscrete(sourceLine,
forceARGB);
sourceLine = temp.getRaster();
} else {
sourceLine = srcRas.createChild(sourceXOffset,
sourceYOffset+y,
sourceWidth, 1,
0, 0,
srcBands);
}
if (convertTosRGB) {
if (debug) {
System.out.println("Converting to sRGB");
}
// The first time through, converted is null, so
// a new raster is allocated. It is then reused
// on subsequent lines.
converted = convertOp.filter(sourceLine, converted);
sourceLine = converted;
}
if (isAlphaPremultiplied) {
WritableRaster wr = sourceLine.createCompatibleWritableRaster();
int[] data = null;
data = sourceLine.getPixels(sourceLine.getMinX(), sourceLine.getMinY(),
sourceLine.getWidth(), sourceLine.getHeight(),
data);
wr.setPixels(sourceLine.getMinX(), sourceLine.getMinY(),
sourceLine.getWidth(), sourceLine.getHeight(),
data);
srcCM.coerceData(wr, false);
sourceLine = wr.createChild(wr.getMinX(), wr.getMinY(),
wr.getWidth(), wr.getHeight(),
0, 0,
srcBands);
}
raster.setRect(sourceLine);
if ((y > 7) && (y%8 == 0)) { // Every 8 scanlines
cbLock.lock();
try {
processImageProgress((float) y / (float) sourceHeight * 100.0F);
} finally {
cbLock.unlock();
}
}
}
Example 10
| Source File: JPEGImageWriter.java From openjdk-8-source with GNU General Public License v2.0 | 4 votes |
|
/**
* Put the scanline y of the source ROI view Raster into the
* 1-line Raster for writing. This handles ROI and band
* rearrangements, and expands indexed images. Subsampling is
* done in the native code.
* This is called by the native code.
*/
private void grabPixels(int y) {
Raster sourceLine = null;
if (indexed) {
sourceLine = srcRas.createChild(sourceXOffset,
sourceYOffset+y,
sourceWidth, 1,
0, 0,
new int [] {0});
// If the image has BITMASK transparency, we need to make sure
// it gets converted to 32-bit ARGB, because the JPEG encoder
// relies upon the full 8-bit alpha channel.
boolean forceARGB =
(indexCM.getTransparency() != Transparency.OPAQUE);
BufferedImage temp = indexCM.convertToIntDiscrete(sourceLine,
forceARGB);
sourceLine = temp.getRaster();
} else {
sourceLine = srcRas.createChild(sourceXOffset,
sourceYOffset+y,
sourceWidth, 1,
0, 0,
srcBands);
}
if (convertTosRGB) {
if (debug) {
System.out.println("Converting to sRGB");
}
// The first time through, converted is null, so
// a new raster is allocated. It is then reused
// on subsequent lines.
converted = convertOp.filter(sourceLine, converted);
sourceLine = converted;
}
if (isAlphaPremultiplied) {
WritableRaster wr = sourceLine.createCompatibleWritableRaster();
int[] data = null;
data = sourceLine.getPixels(sourceLine.getMinX(), sourceLine.getMinY(),
sourceLine.getWidth(), sourceLine.getHeight(),
data);
wr.setPixels(sourceLine.getMinX(), sourceLine.getMinY(),
sourceLine.getWidth(), sourceLine.getHeight(),
data);
srcCM.coerceData(wr, false);
sourceLine = wr.createChild(wr.getMinX(), wr.getMinY(),
wr.getWidth(), wr.getHeight(),
0, 0,
srcBands);
}
raster.setRect(sourceLine);
if ((y > 7) && (y%8 == 0)) { // Every 8 scanlines
cbLock.lock();
try {
processImageProgress((float) y / (float) sourceHeight * 100.0F);
} finally {
cbLock.unlock();
}
}
}
Example 11
| Source File: JPEGImageWriter.java From hottub with GNU General Public License v2.0 | 4 votes |
|
/**
* Put the scanline y of the source ROI view Raster into the
* 1-line Raster for writing. This handles ROI and band
* rearrangements, and expands indexed images. Subsampling is
* done in the native code.
* This is called by the native code.
*/
private void grabPixels(int y) {
Raster sourceLine = null;
if (indexed) {
sourceLine = srcRas.createChild(sourceXOffset,
sourceYOffset+y,
sourceWidth, 1,
0, 0,
new int [] {0});
// If the image has BITMASK transparency, we need to make sure
// it gets converted to 32-bit ARGB, because the JPEG encoder
// relies upon the full 8-bit alpha channel.
boolean forceARGB =
(indexCM.getTransparency() != Transparency.OPAQUE);
BufferedImage temp = indexCM.convertToIntDiscrete(sourceLine,
forceARGB);
sourceLine = temp.getRaster();
} else {
sourceLine = srcRas.createChild(sourceXOffset,
sourceYOffset+y,
sourceWidth, 1,
0, 0,
srcBands);
}
if (convertTosRGB) {
if (debug) {
System.out.println("Converting to sRGB");
}
// The first time through, converted is null, so
// a new raster is allocated. It is then reused
// on subsequent lines.
converted = convertOp.filter(sourceLine, converted);
sourceLine = converted;
}
if (isAlphaPremultiplied) {
WritableRaster wr = sourceLine.createCompatibleWritableRaster();
int[] data = null;
data = sourceLine.getPixels(sourceLine.getMinX(), sourceLine.getMinY(),
sourceLine.getWidth(), sourceLine.getHeight(),
data);
wr.setPixels(sourceLine.getMinX(), sourceLine.getMinY(),
sourceLine.getWidth(), sourceLine.getHeight(),
data);
srcCM.coerceData(wr, false);
sourceLine = wr.createChild(wr.getMinX(), wr.getMinY(),
wr.getWidth(), wr.getHeight(),
0, 0,
srcBands);
}
raster.setRect(sourceLine);
if ((y > 7) && (y%8 == 0)) { // Every 8 scanlines
cbLock.lock();
try {
processImageProgress((float) y / (float) sourceHeight * 100.0F);
} finally {
cbLock.unlock();
}
}
}
Example 12
| Source File: MiscCompositeContext.java From scrimage with Apache License 2.0 | 4 votes |
|
public void compose(Raster src, Raster dstIn, WritableRaster dstOut) {
float a = 0, ac = 0;
float alpha = this.alpha;
int t;
int[] srcPix = null;
int[] dstPix = null;
int x = dstOut.getMinX();
int w = dstOut.getWidth();
int y0 = dstOut.getMinY();
int y1 = y0 + dstOut.getHeight();
for (int y = y0; y < y1; y++) {
srcPix = src.getPixels(x, y, w, 1, srcPix);
dstPix = dstIn.getPixels(x, y, w, 1, dstPix);
int i = 0;
int end = w * 4;
while (i < end) {
int sr = srcPix[i];
int dir = dstPix[i];
int sg = srcPix[i + 1];
int dig = dstPix[i + 1];
int sb = srcPix[i + 2];
int dib = dstPix[i + 2];
int sa = srcPix[i + 3];
int dia = dstPix[i + 3];
int dor, dog, dob, doa;
switch (rule) {
case MiscComposite.ADD:
default:
dor = dir + sr;
if (dor > 255)
dor = 255;
dog = dig + sg;
if (dog > 255)
dog = 255;
dob = dib + sb;
if (dob > 255)
dob = 255;
break;
case MiscComposite.SUBTRACT:
dor = dir - sr;
if (dor < 0)
dor = 0;
dog = dig - sg;
if (dog < 0)
dog = 0;
dob = dib - sb;
if (dob < 0)
dob = 0;
break;
}
a = alpha * sa / 255f;
ac = 1 - a;
dstPix[i] = (int) (a * dor + ac * dir);
dstPix[i + 1] = (int) (a * dog + ac * dig);
dstPix[i + 2] = (int) (a * dob + ac * dib);
dstPix[i + 3] = (int) (sa * alpha + dia * ac);
i += 4;
}
dstOut.setPixels(x, y, w, 1, dstPix);
}
}
Example 13
| Source File: JPEGImageWriter.java From jdk8u-jdk with GNU General Public License v2.0 | 4 votes |
|
/**
* Put the scanline y of the source ROI view Raster into the
* 1-line Raster for writing. This handles ROI and band
* rearrangements, and expands indexed images. Subsampling is
* done in the native code.
* This is called by the native code.
*/
private void grabPixels(int y) {
Raster sourceLine = null;
if (indexed) {
sourceLine = srcRas.createChild(sourceXOffset,
sourceYOffset+y,
sourceWidth, 1,
0, 0,
new int [] {0});
// If the image has BITMASK transparency, we need to make sure
// it gets converted to 32-bit ARGB, because the JPEG encoder
// relies upon the full 8-bit alpha channel.
boolean forceARGB =
(indexCM.getTransparency() != Transparency.OPAQUE);
BufferedImage temp = indexCM.convertToIntDiscrete(sourceLine,
forceARGB);
sourceLine = temp.getRaster();
} else {
sourceLine = srcRas.createChild(sourceXOffset,
sourceYOffset+y,
sourceWidth, 1,
0, 0,
srcBands);
}
if (convertTosRGB) {
if (debug) {
System.out.println("Converting to sRGB");
}
// The first time through, converted is null, so
// a new raster is allocated. It is then reused
// on subsequent lines.
converted = convertOp.filter(sourceLine, converted);
sourceLine = converted;
}
if (isAlphaPremultiplied) {
WritableRaster wr = sourceLine.createCompatibleWritableRaster();
int[] data = null;
data = sourceLine.getPixels(sourceLine.getMinX(), sourceLine.getMinY(),
sourceLine.getWidth(), sourceLine.getHeight(),
data);
wr.setPixels(sourceLine.getMinX(), sourceLine.getMinY(),
sourceLine.getWidth(), sourceLine.getHeight(),
data);
srcCM.coerceData(wr, false);
sourceLine = wr.createChild(wr.getMinX(), wr.getMinY(),
wr.getWidth(), wr.getHeight(),
0, 0,
srcBands);
}
raster.setRect(sourceLine);
if ((y > 7) && (y%8 == 0)) { // Every 8 scanlines
cbLock.lock();
try {
processImageProgress((float) y / (float) sourceHeight * 100.0F);
} finally {
cbLock.unlock();
}
}
}
Example 14
| Source File: JPEGImageWriter.java From openjdk-8 with GNU General Public License v2.0 | 4 votes |
|
/**
* Put the scanline y of the source ROI view Raster into the
* 1-line Raster for writing. This handles ROI and band
* rearrangements, and expands indexed images. Subsampling is
* done in the native code.
* This is called by the native code.
*/
private void grabPixels(int y) {
Raster sourceLine = null;
if (indexed) {
sourceLine = srcRas.createChild(sourceXOffset,
sourceYOffset+y,
sourceWidth, 1,
0, 0,
new int [] {0});
// If the image has BITMASK transparency, we need to make sure
// it gets converted to 32-bit ARGB, because the JPEG encoder
// relies upon the full 8-bit alpha channel.
boolean forceARGB =
(indexCM.getTransparency() != Transparency.OPAQUE);
BufferedImage temp = indexCM.convertToIntDiscrete(sourceLine,
forceARGB);
sourceLine = temp.getRaster();
} else {
sourceLine = srcRas.createChild(sourceXOffset,
sourceYOffset+y,
sourceWidth, 1,
0, 0,
srcBands);
}
if (convertTosRGB) {
if (debug) {
System.out.println("Converting to sRGB");
}
// The first time through, converted is null, so
// a new raster is allocated. It is then reused
// on subsequent lines.
converted = convertOp.filter(sourceLine, converted);
sourceLine = converted;
}
if (isAlphaPremultiplied) {
WritableRaster wr = sourceLine.createCompatibleWritableRaster();
int[] data = null;
data = sourceLine.getPixels(sourceLine.getMinX(), sourceLine.getMinY(),
sourceLine.getWidth(), sourceLine.getHeight(),
data);
wr.setPixels(sourceLine.getMinX(), sourceLine.getMinY(),
sourceLine.getWidth(), sourceLine.getHeight(),
data);
srcCM.coerceData(wr, false);
sourceLine = wr.createChild(wr.getMinX(), wr.getMinY(),
wr.getWidth(), wr.getHeight(),
0, 0,
srcBands);
}
raster.setRect(sourceLine);
if ((y > 7) && (y%8 == 0)) { // Every 8 scanlines
cbLock.lock();
try {
processImageProgress((float) y / (float) sourceHeight * 100.0F);
} finally {
cbLock.unlock();
}
}
}
Example 15
| Source File: ConicalGradientPaint.java From mars-sim with GNU General Public License v3.0 | 4 votes |
|
@Override
public Raster getRaster(final int X, final int Y, final int TILE_WIDTH, final int TILE_HEIGHT) {
final double ROTATION_CENTER_X = -X + CENTER.getX();
final double ROTATION_CENTER_Y = -Y + CENTER.getY();
final int MAX = FRACTION_ANGLES.length - 1;
// Create raster for given colormodel
final WritableRaster RASTER = getColorModel().createCompatibleWritableRaster(TILE_WIDTH, TILE_HEIGHT);
// Create data array with place for red, green, blue and alpha values
final int[] data = new int[(TILE_WIDTH * TILE_HEIGHT * 4)];
double dx;
double dy;
double distance;
double angle;
double currentRed = 0;
double currentGreen = 0;
double currentBlue = 0;
double currentAlpha = 0;
for (int tileY = 0; tileY < TILE_HEIGHT; tileY++) {
for (int tileX = 0; tileX < TILE_WIDTH; tileX++) {
// Calculate the distance between the current position and the rotation angle
dx = tileX - ROTATION_CENTER_X;
dy = tileY - ROTATION_CENTER_Y;
distance = Math.sqrt(dx * dx + dy * dy);
// Avoid division by zero
if (distance == 0) {
distance = 1;
}
// 0 degree on top
angle = Math.abs(Math.toDegrees(Math.acos(dx / distance)));
if (dx >= 0 && dy <= 0) {
angle = 90.0 - angle;
} else if (dx >= 0 && dy >= 0) {
angle += 90.0;
} else if (dx <= 0 && dy >= 0) {
angle += 90.0;
} else if (dx <= 0 && dy <= 0) {
angle = 450.0 - angle;
}
// Check for each angle in fractionAngles array
for (int i = 0; i < MAX; i++) {
if ((angle >= FRACTION_ANGLES[i])) {
currentRed = COLORS[i].getRed() * INT_TO_FLOAT_CONST + (angle - FRACTION_ANGLES[i]) * RED_STEP_LOOKUP[i];
currentGreen = COLORS[i].getGreen() * INT_TO_FLOAT_CONST + (angle - FRACTION_ANGLES[i]) * GREEN_STEP_LOOKUP[i];
currentBlue = COLORS[i].getBlue() * INT_TO_FLOAT_CONST + (angle - FRACTION_ANGLES[i]) * BLUE_STEP_LOOKUP[i];
currentAlpha = COLORS[i].getAlpha() * INT_TO_FLOAT_CONST + (angle - FRACTION_ANGLES[i]) * ALPHA_STEP_LOOKUP[i];
}
}
// Fill data array with calculated color values
final int BASE = (tileY * TILE_WIDTH + tileX) * 4;
data[BASE] = (int) (currentRed * 255);
data[BASE + 1] = (int) (currentGreen * 255);
data[BASE + 2] = (int) (currentBlue * 255);
data[BASE + 3] = (int) (currentAlpha * 255);
}
}
// Fill the raster with the data
RASTER.setPixels(0, 0, TILE_WIDTH, TILE_HEIGHT, data);
return RASTER;
}
Example 16
| Source File: JPEGImageWriter.java From openjdk-jdk8u with GNU General Public License v2.0 | 4 votes |
|
/**
* Put the scanline y of the source ROI view Raster into the
* 1-line Raster for writing. This handles ROI and band
* rearrangements, and expands indexed images. Subsampling is
* done in the native code.
* This is called by the native code.
*/
private void grabPixels(int y) {
Raster sourceLine = null;
if (indexed) {
sourceLine = srcRas.createChild(sourceXOffset,
sourceYOffset+y,
sourceWidth, 1,
0, 0,
new int [] {0});
// If the image has BITMASK transparency, we need to make sure
// it gets converted to 32-bit ARGB, because the JPEG encoder
// relies upon the full 8-bit alpha channel.
boolean forceARGB =
(indexCM.getTransparency() != Transparency.OPAQUE);
BufferedImage temp = indexCM.convertToIntDiscrete(sourceLine,
forceARGB);
sourceLine = temp.getRaster();
} else {
sourceLine = srcRas.createChild(sourceXOffset,
sourceYOffset+y,
sourceWidth, 1,
0, 0,
srcBands);
}
if (convertTosRGB) {
if (debug) {
System.out.println("Converting to sRGB");
}
// The first time through, converted is null, so
// a new raster is allocated. It is then reused
// on subsequent lines.
converted = convertOp.filter(sourceLine, converted);
sourceLine = converted;
}
if (isAlphaPremultiplied) {
WritableRaster wr = sourceLine.createCompatibleWritableRaster();
int[] data = null;
data = sourceLine.getPixels(sourceLine.getMinX(), sourceLine.getMinY(),
sourceLine.getWidth(), sourceLine.getHeight(),
data);
wr.setPixels(sourceLine.getMinX(), sourceLine.getMinY(),
sourceLine.getWidth(), sourceLine.getHeight(),
data);
srcCM.coerceData(wr, false);
sourceLine = wr.createChild(wr.getMinX(), wr.getMinY(),
wr.getWidth(), wr.getHeight(),
0, 0,
srcBands);
}
raster.setRect(sourceLine);
if ((y > 7) && (y%8 == 0)) { // Every 8 scanlines
cbLock.lock();
try {
processImageProgress((float) y / (float) sourceHeight * 100.0F);
} finally {
cbLock.unlock();
}
}
}
Example 17
| Source File: BufferedImageLuminanceSource.java From wechatGroupRobot with GNU General Public License v3.0 | 4 votes |
|
public BufferedImageLuminanceSource(BufferedImage image, int left, int top, int width, int height) {
super(width, height);
if (image.getType() == BufferedImage.TYPE_BYTE_GRAY) {
this.image = image;
} else {
int sourceWidth = image.getWidth();
int sourceHeight = image.getHeight();
if (left + width > sourceWidth || top + height > sourceHeight) {
throw new IllegalArgumentException("Crop rectangle does not fit within image data.");
}
this.image = new BufferedImage(sourceWidth, sourceHeight, BufferedImage.TYPE_BYTE_GRAY);
WritableRaster raster = this.image.getRaster();
int[] buffer = new int[width];
for (int y = top; y < top + height; y++) {
image.getRGB(left, y, width, 1, buffer, 0, sourceWidth);
for (int x = 0; x < width; x++) {
int pixel = buffer[x];
// The color of fully-transparent pixels is irrelevant. They are often, technically, fully-transparent
// black (0 alpha, and then 0 RGB). They are often used, of course as the "white" area in a
// barcode image. Force any such pixel to be white:
if ((pixel & 0xFF000000) == 0) {
pixel = 0xFFFFFFFF;
}
// .299R + 0.587G + 0.114B (YUV/YIQ for PAL and NTSC),
// (306*R) >> 10 is approximately equal to R*0.299, and so on.
// 0x200 >> 10 is 0.5, it implements rounding.
buffer[x] =
(306 * ((pixel >> 16) & 0xFF) +
601 * ((pixel >> 8) & 0xFF) +
117 * (pixel & 0xFF) +
0x200) >> 10;
}
raster.setPixels(left, y, width, 1, buffer);
}
}
this.left = left;
this.top = top;
}
Example 18
| Source File: PaletteColorChooserPaint.java From weblaf with GNU General Public License v3.0 | 4 votes |
|
@Override
public PaintContext createContext ( final ColorModel cm, final Rectangle deviceBounds, final Rectangle2D userBounds,
final AffineTransform xform, final RenderingHints hints )
{
return new PaintContext ()
{
private Map<Rectangle, WritableRaster> rastersCache = new HashMap<Rectangle, WritableRaster> ();
@Override
public void dispose ()
{
rastersCache.clear ();
}
@Override
public ColorModel getColorModel ()
{
return model;
}
@Override
public Raster getRaster ( int x, int y, final int w, final int h )
{
final Rectangle r = new Rectangle ( x, y, w, h );
if ( rastersCache.containsKey ( r ) )
{
return rastersCache.get ( r );
}
else
{
final WritableRaster raster = model.createCompatibleWritableRaster ( w, h );
x -= Math.round ( xform.getTranslateX () );
y -= Math.round ( xform.getTranslateY () );
final int[] data = new int[ w * h * 4 ];
for ( int j = 0; j < h; j++ )
{
for ( int i = 0; i < w; i++ )
{
final int base = ( j * w + i ) * 4;
data[ base ] = getRed ( x + i, y + j );
data[ base + 1 ] = getGreen ( x + i, y + j );
data[ base + 2 ] = getBlue ( x + i, y + j );
data[ base + 3 ] = 255;
}
}
raster.setPixels ( 0, 0, w, h, data );
rastersCache.put ( r, raster );
return raster;
}
}
};
}
Example 19
| Source File: JPEGImageWriter.java From TencentKona-8 with GNU General Public License v2.0 | 4 votes |
|
/**
* Put the scanline y of the source ROI view Raster into the
* 1-line Raster for writing. This handles ROI and band
* rearrangements, and expands indexed images. Subsampling is
* done in the native code.
* This is called by the native code.
*/
private void grabPixels(int y) {
Raster sourceLine = null;
if (indexed) {
sourceLine = srcRas.createChild(sourceXOffset,
sourceYOffset+y,
sourceWidth, 1,
0, 0,
new int [] {0});
// If the image has BITMASK transparency, we need to make sure
// it gets converted to 32-bit ARGB, because the JPEG encoder
// relies upon the full 8-bit alpha channel.
boolean forceARGB =
(indexCM.getTransparency() != Transparency.OPAQUE);
BufferedImage temp = indexCM.convertToIntDiscrete(sourceLine,
forceARGB);
sourceLine = temp.getRaster();
} else {
sourceLine = srcRas.createChild(sourceXOffset,
sourceYOffset+y,
sourceWidth, 1,
0, 0,
srcBands);
}
if (convertTosRGB) {
if (debug) {
System.out.println("Converting to sRGB");
}
// The first time through, converted is null, so
// a new raster is allocated. It is then reused
// on subsequent lines.
converted = convertOp.filter(sourceLine, converted);
sourceLine = converted;
}
if (isAlphaPremultiplied) {
WritableRaster wr = sourceLine.createCompatibleWritableRaster();
int[] data = null;
data = sourceLine.getPixels(sourceLine.getMinX(), sourceLine.getMinY(),
sourceLine.getWidth(), sourceLine.getHeight(),
data);
wr.setPixels(sourceLine.getMinX(), sourceLine.getMinY(),
sourceLine.getWidth(), sourceLine.getHeight(),
data);
srcCM.coerceData(wr, false);
sourceLine = wr.createChild(wr.getMinX(), wr.getMinY(),
wr.getWidth(), wr.getHeight(),
0, 0,
srcBands);
}
raster.setRect(sourceLine);
if ((y > 7) && (y%8 == 0)) { // Every 8 scanlines
cbLock.lock();
try {
processImageProgress((float) y / (float) sourceHeight * 100.0F);
} finally {
cbLock.unlock();
}
}
}
Example 20
| Source File: JPEGImageWriter.java From dragonwell8_jdk with GNU General Public License v2.0 | 4 votes |
|
/**
* Put the scanline y of the source ROI view Raster into the
* 1-line Raster for writing. This handles ROI and band
* rearrangements, and expands indexed images. Subsampling is
* done in the native code.
* This is called by the native code.
*/
private void grabPixels(int y) {
Raster sourceLine = null;
if (indexed) {
sourceLine = srcRas.createChild(sourceXOffset,
sourceYOffset+y,
sourceWidth, 1,
0, 0,
new int [] {0});
// If the image has BITMASK transparency, we need to make sure
// it gets converted to 32-bit ARGB, because the JPEG encoder
// relies upon the full 8-bit alpha channel.
boolean forceARGB =
(indexCM.getTransparency() != Transparency.OPAQUE);
BufferedImage temp = indexCM.convertToIntDiscrete(sourceLine,
forceARGB);
sourceLine = temp.getRaster();
} else {
sourceLine = srcRas.createChild(sourceXOffset,
sourceYOffset+y,
sourceWidth, 1,
0, 0,
srcBands);
}
if (convertTosRGB) {
if (debug) {
System.out.println("Converting to sRGB");
}
// The first time through, converted is null, so
// a new raster is allocated. It is then reused
// on subsequent lines.
converted = convertOp.filter(sourceLine, converted);
sourceLine = converted;
}
if (isAlphaPremultiplied) {
WritableRaster wr = sourceLine.createCompatibleWritableRaster();
int[] data = null;
data = sourceLine.getPixels(sourceLine.getMinX(), sourceLine.getMinY(),
sourceLine.getWidth(), sourceLine.getHeight(),
data);
wr.setPixels(sourceLine.getMinX(), sourceLine.getMinY(),
sourceLine.getWidth(), sourceLine.getHeight(),
data);
srcCM.coerceData(wr, false);
sourceLine = wr.createChild(wr.getMinX(), wr.getMinY(),
wr.getWidth(), wr.getHeight(),
0, 0,
srcBands);
}
raster.setRect(sourceLine);
if ((y > 7) && (y%8 == 0)) { // Every 8 scanlines
cbLock.lock();
try {
processImageProgress((float) y / (float) sourceHeight * 100.0F);
} finally {
cbLock.unlock();
}
}
}
