本文整理匯總了Java中java.awt.image.ColorModel.getAlpha方法的典型用法代碼示例。如果您正苦於以下問題：Java ColorModel.getAlpha方法的具體用法？Java ColorModel.getAlpha怎麽用？Java ColorModel.getAlpha使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類java.awt.image.ColorModel的用法示例。
在下文中一共展示了ColorModel.getAlpha方法的6個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: compare
import java.awt.image.ColorModel; //導入方法依賴的package包/類
private boolean compare(BufferedImage in, BufferedImage out) {
int width = in.getWidth();
int height = in.getHeight();
if (out.getWidth() != width || out.getHeight() != height) {
throw new RuntimeException("Dimensions changed!");
}
Raster oldras = in.getRaster();
ColorModel oldcm = in.getColorModel();
Raster newras = out.getRaster();
ColorModel newcm = out.getColorModel();
for (int j = 0; j < height; j++) {
for (int i = 0; i < width; i++) {
Object oldpixel = oldras.getDataElements(i, j, null);
int oldrgb = oldcm.getRGB(oldpixel);
int oldalpha = oldcm.getAlpha(oldpixel);
Object newpixel = newras.getDataElements(i, j, null);
int newrgb = newcm.getRGB(newpixel);
int newalpha = newcm.getAlpha(newpixel);
if (newrgb != oldrgb ||
newalpha != oldalpha) {
throw new RuntimeException("Pixels differ at " + i +
", " + j);
}
}
}
return true;
}
示例2: compare
import java.awt.image.ColorModel; //導入方法依賴的package包/類
private boolean compare(final BufferedImage in, final BufferedImage out) {
final int width = in.getWidth();
int height = in.getHeight();
if (out.getWidth() != width || out.getHeight() != height) {
throw new RuntimeException("Dimensions changed!");
}
Raster oldras = in.getRaster();
ColorModel oldcm = in.getColorModel();
Raster newras = out.getRaster();
ColorModel newcm = out.getColorModel();
for (int j = 0; j < height; j++) {
for (int i = 0; i < width; i++) {
Object oldpixel = oldras.getDataElements(i, j, null);
int oldrgb = oldcm.getRGB(oldpixel);
int oldalpha = oldcm.getAlpha(oldpixel);
Object newpixel = newras.getDataElements(i, j, null);
int newrgb = newcm.getRGB(newpixel);
int newalpha = newcm.getAlpha(newpixel);
if (newrgb != oldrgb ||
newalpha != oldalpha) {
// showDiff(in, out);
throw new RuntimeException("Pixels differ at " + i +
", " + j + " new = " + Integer.toHexString(newrgb) + " old = " + Integer.toHexString(oldrgb));
}
}
}
return true;
}
示例3: compare
import java.awt.image.ColorModel; //導入方法依賴的package包/類
private static boolean compare(final BufferedImage in,
final BufferedImage out)
{
final int width = in.getWidth();
int height = in.getHeight();
if (out.getWidth() != width || out.getHeight() != height) {
throw new RuntimeException("Dimensions changed!");
}
Raster oldras = in.getRaster();
ColorModel oldcm = in.getColorModel();
Raster newras = out.getRaster();
ColorModel newcm = out.getColorModel();
for (int j = 0; j < height; j++) {
for (int i = 0; i < width; i++) {
Object oldpixel = oldras.getDataElements(i, j, null);
int oldrgb = oldcm.getRGB(oldpixel);
int oldalpha = oldcm.getAlpha(oldpixel);
Object newpixel = newras.getDataElements(i, j, null);
int newrgb = newcm.getRGB(newpixel);
int newalpha = newcm.getAlpha(newpixel);
if (newrgb != oldrgb ||
newalpha != oldalpha) {
// showDiff(in, out);
throw new RuntimeException("Pixels differ at " + i +
", " + j + " new = " + Integer.toHexString(newrgb) + " old = " + Integer.toHexString(oldrgb));
}
}
}
return true;
}
示例4: compare
import java.awt.image.ColorModel; //導入方法依賴的package包/類
public static void compare(BufferedImage oldimg,
BufferedImage newimg) {
int width = oldimg.getWidth();
int height = oldimg.getHeight();
if (newimg.getWidth() != width || newimg.getHeight() != height) {
throw new RuntimeException("Dimensions changed!");
}
Raster oldras = oldimg.getRaster();
ColorModel oldcm = oldimg.getColorModel();
Raster newras = newimg.getRaster();
ColorModel newcm = newimg.getColorModel();
for (int j = 0; j < height; j++) {
for (int i = 0; i < width; i++) {
Object oldpixel = oldras.getDataElements(i, j, null);
int oldrgb = oldcm.getRGB(oldpixel);
int oldalpha = oldcm.getAlpha(oldpixel);
Object newpixel = newras.getDataElements(i, j, null);
int newrgb = newcm.getRGB(newpixel);
int newalpha = newcm.getAlpha(newpixel);
if (newrgb != oldrgb ||
newalpha != oldalpha) {
throw new RuntimeException("Pixels differ at " + i +
", " + j);
}
}
}
}
示例5: renderChar
import java.awt.image.ColorModel; //導入方法依賴的package包/類
public void renderChar(FontMetrics fontMetrics, BufferedImage image, char c, int safetyMargin) {
double[][] red = new double[image.getWidth()][image.getHeight()];
double[][] green = new double[image.getWidth()][image.getHeight()];
double[][] blue = new double[image.getWidth()][image.getHeight()];
double[][] alpha = new double[image.getWidth()][image.getHeight()];
ColorModel cm = image.getColorModel();
for(int x=kernel.getWidth()/2; x < image.getWidth()-kernel.getWidth()/2; x++) {
for(int y=kernel.getHeight()/2; y < image.getHeight()-kernel.getHeight()/2; y++) {
for(int j=0 ; j<kernel.getWidth(); j++) {
for(int k=0; k<kernel.getHeight(); k++) {
int rgb = image.getRGB(
x+j-kernel.getWidth()/2,
y+k-kernel.getHeight()/2);
double value = kernel.getValue(j, k);
red[x][y] += cm.getRed(rgb)*value;
green[x][y] += cm.getGreen(rgb)*value;
blue[x][y] += cm.getBlue(rgb)*value;
alpha[x][y] += cm.getAlpha(rgb)*value;
}
}
}
}
if(normalize) {
normalize(red, green, blue, alpha);
}
Graphics2D g = image.createGraphics();
Clear.clear(g, image.getWidth(), image.getHeight());
for(int x=0; x < image.getWidth(); x++) {
for(int y=0; y < image.getHeight(); y++) {
if(red[x][y] > 255) red[x][y] = 255;
if(green[x][y] > 255) green[x][y] = 255;
if(blue[x][y] > 255) blue[x][y] = 255;
if(alpha[x][y] > 255) alpha[x][y] = 255;
if(red[x][y] < 0) red[x][y] = 0;
if(green[x][y] < 0) green[x][y] = 0;
if(blue[x][y] < 0) blue[x][y] = 0;
if(alpha[x][y] < 0) alpha[x][y] = 0;
// @todo optimize drawing the image with image.setRGB #
Color color = new Color((int)red[x][y], (int)green[x][y], (int)blue[x][y], (int)alpha[x][y]);
g.setColor(color);
g.drawLine(x, y, x, y);
}
}
}
示例6: cropImage
import java.awt.image.ColorModel; //導入方法依賴的package包/類
private BufferedImage cropImage(BufferedImage bi, char c)
{
ColorModel cm = bi.getColorModel();
int startX = 0;
int endX = fontMetrics.charWidth(c);
// coming from the right, going to the left
for (int x = fontMetrics.charWidth(c); x < bi.getWidth(); x++)
{
boolean hasAlpha = false;
for (int y = 0; y < bi.getHeight(); y++)
{
if (cm.getAlpha(bi.getRGB(x, y)) != 0)
{
hasAlpha = true;
endX = x+1;
break;
}
}
if(!hasAlpha) break;
}
//System.out.println(c+" StartX: "+startX+", endX: "+endX);
/*
if(c == ' ')
{
endX = fontMetrics.charWidth(' ');
startX = 0;
}
*/
//endX++;
//endX++;
// large fonts need extra space
//while(endX - startX < fontMetrics.charWidth(c)) endX++;
BufferedImage cropped = new BufferedImage(endX - startX, fontMetrics.getMaxAscent()+fontMetrics.getMaxDescent(),
bi.getType());
cropped.getGraphics().drawImage(bi, -startX, 0, null);
return cropped;
}