下面列出了javax.imageio.ImageTypeSpecifier#createFromBufferedImageType ( ) 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。
public static void main(String[] args) {
int biType = BufferedImage.TYPE_USHORT_565_RGB;
ImageTypeSpecifier type =
ImageTypeSpecifier.createFromBufferedImageType(biType);
int b0 = type.getBitsPerBand(0);
int b1 = type.getBitsPerBand(1);
int b2 = type.getBitsPerBand(2);
if (b0 != 5 || b1 != 6 || b2 != 5) {
throw new RuntimeException("Got incorrect bits per band value!");
}
boolean gotIAE = false;
try {
int b3 = type.getBitsPerBand(3);
} catch (IllegalArgumentException e) {
gotIAE = true;
}
if (!gotIAE) {
throw new RuntimeException
("Failed to get IllegalArgumentException for band == 3!");
}
}
@Override
public void writeBufferedImage(BufferedImage bufferedImage, float quality, int dpi, String formatName, File targetFile) throws Exception {
System.out.println("Saving " + targetFile.getPath());
if (formatName.equalsIgnoreCase("jpg") || formatName.equalsIgnoreCase("jpeg")) {
JPEGImageWriter imageWriter = (JPEGImageWriter) ImageIO.getImageWritersBySuffix(formatName).next();
ImageWriteParam writeParam = imageWriter.getDefaultWriteParam();
ImageTypeSpecifier typeSpecifier = ImageTypeSpecifier.createFromBufferedImageType(BufferedImage.TYPE_INT_RGB);
IIOMetadata metadata = imageWriter.getDefaultImageMetadata(typeSpecifier, writeParam);
if (formatName.equalsIgnoreCase("jpg") || formatName.equalsIgnoreCase("jpeg")) {
Element tree = (Element) metadata.getAsTree("javax_imageio_jpeg_image_1.0");
Element jfif = (Element) tree.getElementsByTagName("app0JFIF").item(0);
jfif.setAttribute("Xdensity", Integer.toString(dpi));
jfif.setAttribute("Ydensity", Integer.toString(dpi));
jfif.setAttribute("resUnits", "1");
metadata.setFromTree("javax_imageio_jpeg_image_1.0", tree);
}
if (quality >= 0 && quality <= 1f) {
JPEGImageWriteParam jpegParams = (JPEGImageWriteParam) imageWriter.getDefaultWriteParam();
jpegParams.setCompressionMode(JPEGImageWriteParam.MODE_EXPLICIT);
jpegParams.setCompressionQuality(quality);
}
FileOutputStream os = new FileOutputStream(targetFile);
final ImageOutputStream stream = ImageIO.createImageOutputStream(os);
try {
imageWriter.setOutput(stream);
imageWriter.write(metadata, new IIOImage(bufferedImage, null, metadata), writeParam);
} finally {
stream.close();
}
} else {
writeBufferedImage(bufferedImage, formatName, targetFile);
}
}
public static void main(String[] args) throws IOException {
ImageWriter iw =
(ImageWriter)ImageIO.getImageWritersByFormatName("jpeg").next();
ImageTypeSpecifier type =
ImageTypeSpecifier.createFromBufferedImageType(BufferedImage.TYPE_INT_RGB);
ImageOutputStream ios =
ImageIO.createImageOutputStream(new File("MergeTreeTest.jpeg"));
iw.setOutput(ios);
IIOMetadata meta = iw.getDefaultImageMetadata(type, null);
boolean isFailed = false;
String[] fmts = meta.getMetadataFormatNames();
for (int i=0; i<fmts.length; i++) {
System.out.print("Format: " + fmts[i] + " ... ");
Node root = meta.getAsTree(fmts[i]);
try {
meta.mergeTree(fmts[i], root);
} catch (NullPointerException e) {
throw new RuntimeException("Test failed for format " + fmts[i], e);
}
System.out.println("PASSED");
}
}
public ImageWriteParam getWriteParam() {
ImageWriteParam p = w.getDefaultWriteParam();
p.setSourceBands(new int[] {0, 1, 2});
ImageTypeSpecifier type =
ImageTypeSpecifier.createFromBufferedImageType(BufferedImage.TYPE_INT_RGB);
p.setDestinationType(type);
return p;
}
private static ImageAndResolution convertToInputStreamJPG(BufferedImage buffImage, int dpi) throws IOException {
ImageWriter writer = getImageWriter("jpeg");
JPEGImageWriteParam jpegParams = (JPEGImageWriteParam) writer.getDefaultWriteParam();
jpegParams.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
jpegParams.setCompressionQuality(1);
ImageTypeSpecifier typeSpecifier = ImageTypeSpecifier.createFromBufferedImageType(BufferedImage.TYPE_INT_RGB);
IIOMetadata metadata = writer.getDefaultImageMetadata(typeSpecifier, jpegParams);
initDpiJPG(metadata, dpi);
return getImageAndResolution(buffImage, dpi, writer, jpegParams, metadata);
}
public static void main(String[] args) throws IOException {
ImageWriter iw =
(ImageWriter)ImageIO.getImageWritersByFormatName("jpeg").next();
ImageTypeSpecifier type =
ImageTypeSpecifier.createFromBufferedImageType(BufferedImage.TYPE_INT_RGB);
ImageOutputStream ios =
ImageIO.createImageOutputStream(new File("MergeTreeTest.jpeg"));
iw.setOutput(ios);
IIOMetadata meta = iw.getDefaultImageMetadata(type, null);
boolean isFailed = false;
String[] fmts = meta.getMetadataFormatNames();
for (int i=0; i<fmts.length; i++) {
System.out.print("Format: " + fmts[i] + " ... ");
Node root = meta.getAsTree(fmts[i]);
try {
meta.mergeTree(fmts[i], root);
} catch (NullPointerException e) {
throw new RuntimeException("Test failed for format " + fmts[i], e);
}
System.out.println("PASSED");
}
}
/**
* Saves image as PDF and stores meta data to indicate the resolution.
*/
private static void createPNG(BufferedImage image, OutputStream os, int resolution) throws IOException {
ImageWriter writer = null;
ImageWriteParam writeParam = null;
IIOMetadata metadata = null;
for (Iterator<ImageWriter> iw = ImageIO.getImageWritersByFormatName("png"); iw.hasNext(); ) {
writer = iw.next();
writeParam = writer.getDefaultWriteParam();
ImageTypeSpecifier typeSpecifier = ImageTypeSpecifier.createFromBufferedImageType(image.getType());
metadata = writer.getDefaultImageMetadata(typeSpecifier, writeParam);
if (!metadata.isReadOnly() && metadata.isStandardMetadataFormatSupported())
break;
}
if (writer == null || writeParam == null)
throw new QRBillGenerationException("No valid PNG writer found");
addDpiMetadata(metadata, resolution);
addTextMetadata(metadata);
try (ImageOutputStream stream = ImageIO.createImageOutputStream(os)) {
writer.setOutput(stream);
writer.write(metadata, new IIOImage(image, null, metadata), writeParam);
}
}
/**
* Save image
*
* @param fileName File name
* @param dpi DPI
* @param width Width
* @param height Height
* @param sleep Sleep seconds for web map layer
* @throws IOException
* @throws java.lang.InterruptedException
*/
public void saveImage(String fileName, int dpi, int width, int height, Integer sleep) throws IOException, InterruptedException {
File output = new File(fileName);
output.delete();
String formatName = fileName.substring(fileName.lastIndexOf('.') + 1);
if (formatName.equals("jpg")) {
formatName = "jpeg";
saveImage_Jpeg(fileName, width, height, dpi);
return;
}
double scaleFactor = dpi / 72.0;
BufferedImage image = new BufferedImage((int)(width * scaleFactor), (int)(height * scaleFactor), BufferedImage.TYPE_INT_ARGB);
Graphics2D g = image.createGraphics();
AffineTransform at = g.getTransform();
at.scale(scaleFactor, scaleFactor);
g.setTransform(at);
paintGraphics(g, width, height);
for (Iterator<ImageWriter> iw = ImageIO.getImageWritersByFormatName(formatName); iw.hasNext();) {
ImageWriter writer = iw.next();
ImageWriteParam writeParam = writer.getDefaultWriteParam();
ImageTypeSpecifier typeSpecifier = ImageTypeSpecifier.createFromBufferedImageType(BufferedImage.TYPE_INT_ARGB);
IIOMetadata metadata = writer.getDefaultImageMetadata(typeSpecifier, writeParam);
if (metadata == null) {
metadata = writer.getDefaultImageMetadata(typeSpecifier, null);
}
if (metadata.isReadOnly() || !metadata.isStandardMetadataFormatSupported()) {
continue;
}
ImageUtil.setDPI(metadata, dpi);
if (sleep != null) {
Thread.sleep(sleep * 1000);
}
final ImageOutputStream stream = ImageIO.createImageOutputStream(output);
try {
writer.setOutput(stream);
writer.write(metadata, new IIOImage(image, null, metadata), writeParam);
} finally {
stream.close();
}
break;
}
g.dispose();
}
/**
* Export to a picture file
*
* @param fileName File path
* @param dpi DPI
* @throws java.io.FileNotFoundException
* @throws javax.print.PrintException
*/
public void exportToPicture(String fileName, Integer dpi) throws FileNotFoundException, PrintException, IOException {
if (dpi == null) {
exportToPicture(fileName);
} else {
File output = new File(fileName);
output.delete();
int width = _pageBounds.width;
int height = _pageBounds.height;
String formatName = fileName.substring(fileName.lastIndexOf('.') + 1);
if (formatName.equals("jpg")) {
formatName = "jpeg";
saveImage_Jpeg(fileName, width, height, dpi);
return;
}
double scaleFactor = dpi / 72.0;
BufferedImage image = new BufferedImage((int)(width * scaleFactor), (int)(height * scaleFactor), BufferedImage.TYPE_INT_ARGB);
Graphics2D g = image.createGraphics();
AffineTransform at = g.getTransform();
at.scale(scaleFactor, scaleFactor);
g.setTransform(at);
paintGraphics(g);
for (Iterator<ImageWriter> iw = ImageIO.getImageWritersByFormatName(formatName); iw.hasNext();) {
ImageWriter writer = iw.next();
ImageWriteParam writeParam = writer.getDefaultWriteParam();
ImageTypeSpecifier typeSpecifier = ImageTypeSpecifier.createFromBufferedImageType(BufferedImage.TYPE_INT_ARGB);
IIOMetadata metadata = writer.getDefaultImageMetadata(typeSpecifier, writeParam);
if (metadata.isReadOnly() || !metadata.isStandardMetadataFormatSupported()) {
continue;
}
ImageUtil.setDPI(metadata, dpi);
final ImageOutputStream stream = ImageIO.createImageOutputStream(output);
try {
writer.setOutput(stream);
writer.write(metadata, new IIOImage(image, null, metadata), writeParam);
} finally {
stream.close();
}
break;
}
g.dispose();
}
}
protected ImageTypeSpecifier produce() {
switch (csCode) {
case JPEG.JCS_GRAYSCALE:
return ImageTypeSpecifier.createFromBufferedImageType
(BufferedImage.TYPE_BYTE_GRAY);
case JPEG.JCS_RGB:
return ImageTypeSpecifier.createInterleaved(JPEG.JCS.sRGB,
JPEG.bOffsRGB,
DataBuffer.TYPE_BYTE,
false,
false);
case JPEG.JCS_RGBA:
return ImageTypeSpecifier.createPacked(JPEG.JCS.sRGB,
0xff000000,
0x00ff0000,
0x0000ff00,
0x000000ff,
DataBuffer.TYPE_INT,
false);
case JPEG.JCS_YCC:
if (JPEG.JCS.getYCC() != null) {
return ImageTypeSpecifier.createInterleaved(
JPEG.JCS.getYCC(),
JPEG.bandOffsets[2],
DataBuffer.TYPE_BYTE,
false,
false);
} else {
return null;
}
case JPEG.JCS_YCCA:
if (JPEG.JCS.getYCC() != null) {
return ImageTypeSpecifier.createInterleaved(
JPEG.JCS.getYCC(),
JPEG.bandOffsets[3],
DataBuffer.TYPE_BYTE,
true,
false);
} else {
return null;
}
default:
return null;
}
}
protected ImageTypeSpecifier produce() {
switch (csCode) {
case JPEG.JCS_GRAYSCALE:
return ImageTypeSpecifier.createFromBufferedImageType
(BufferedImage.TYPE_BYTE_GRAY);
case JPEG.JCS_RGB:
return ImageTypeSpecifier.createInterleaved(JPEG.JCS.sRGB,
JPEG.bOffsRGB,
DataBuffer.TYPE_BYTE,
false,
false);
case JPEG.JCS_RGBA:
return ImageTypeSpecifier.createPacked(JPEG.JCS.sRGB,
0xff000000,
0x00ff0000,
0x0000ff00,
0x000000ff,
DataBuffer.TYPE_INT,
false);
case JPEG.JCS_YCC:
if (JPEG.JCS.getYCC() != null) {
return ImageTypeSpecifier.createInterleaved(
JPEG.JCS.getYCC(),
JPEG.bandOffsets[2],
DataBuffer.TYPE_BYTE,
false,
false);
} else {
return null;
}
case JPEG.JCS_YCCA:
if (JPEG.JCS.getYCC() != null) {
return ImageTypeSpecifier.createInterleaved(
JPEG.JCS.getYCC(),
JPEG.bandOffsets[3],
DataBuffer.TYPE_BYTE,
true,
false);
} else {
return null;
}
default:
return null;
}
}
/**
* Creates a new GifSequenceWriter.
*
* @param outputStream the ImageOutputStream to be written to
* @param imageType one of the imageTypes specified in BufferedImage
* @param timeBetweenFramesMs the time between frames in miliseconds
* @param loopContinuously wether the gif should loop repeatedly
* @throws IIOException if no gif ImageWriters are found
*
* @author Elliot Kroo (elliot[at]kroo[dot]net)
*/
public GifSequenceWriter(
ImageOutputStream outputStream,
int imageType,
int timeBetweenFramesMs,
boolean loopContinuously) throws IIOException, IOException {
// my method to create a writer
gifWriter = getWriter();
imageWriteParam = gifWriter.getDefaultWriteParam();
ImageTypeSpecifier imageTypeSpecifier =
ImageTypeSpecifier.createFromBufferedImageType(imageType);
imageMetaData =
gifWriter.getDefaultImageMetadata(imageTypeSpecifier,
imageWriteParam);
String metaFormatName = imageMetaData.getNativeMetadataFormatName();
IIOMetadataNode root = (IIOMetadataNode)
imageMetaData.getAsTree(metaFormatName);
IIOMetadataNode graphicsControlExtensionNode = getNode(
root,
"GraphicControlExtension");
graphicsControlExtensionNode.setAttribute("disposalMethod", "none");
graphicsControlExtensionNode.setAttribute("userInputFlag", "FALSE");
graphicsControlExtensionNode.setAttribute(
"transparentColorFlag",
"FALSE");
graphicsControlExtensionNode.setAttribute(
"delayTime",
Integer.toString(timeBetweenFramesMs / 10));
graphicsControlExtensionNode.setAttribute(
"transparentColorIndex",
"0");
IIOMetadataNode commentsNode = getNode(root, "CommentExtensions");
commentsNode.setAttribute("CommentExtension", "Created by MAH");
IIOMetadataNode child = new IIOMetadataNode("ApplicationExtension");
child.setAttribute("applicationID", "NETSCAPE");
child.setAttribute("authenticationCode", "2.0");
IIOMetadataNode appEntensionsNode = getNode(
root,
"ApplicationExtensions");
int loop = loopContinuously ? 0 : 1;
child.setUserObject(new byte[]{ 0x1, (byte) (loop & 0xFF), (byte)
((loop >> 8) & 0xFF)});
appEntensionsNode.appendChild(child);
imageMetaData.setFromTree(metaFormatName, root);
gifWriter.setOutput(outputStream);
gifWriter.prepareWriteSequence(null);
}
protected ImageTypeSpecifier produce() {
switch (csCode) {
case JPEG.JCS_GRAYSCALE:
return ImageTypeSpecifier.createFromBufferedImageType
(BufferedImage.TYPE_BYTE_GRAY);
case JPEG.JCS_RGB:
return ImageTypeSpecifier.createInterleaved(JPEG.JCS.sRGB,
JPEG.bOffsRGB,
DataBuffer.TYPE_BYTE,
false,
false);
case JPEG.JCS_RGBA:
return ImageTypeSpecifier.createPacked(JPEG.JCS.sRGB,
0xff000000,
0x00ff0000,
0x0000ff00,
0x000000ff,
DataBuffer.TYPE_INT,
false);
case JPEG.JCS_YCC:
if (JPEG.JCS.getYCC() != null) {
return ImageTypeSpecifier.createInterleaved(
JPEG.JCS.getYCC(),
JPEG.bandOffsets[2],
DataBuffer.TYPE_BYTE,
false,
false);
} else {
return null;
}
case JPEG.JCS_YCCA:
if (JPEG.JCS.getYCC() != null) {
return ImageTypeSpecifier.createInterleaved(
JPEG.JCS.getYCC(),
JPEG.bandOffsets[3],
DataBuffer.TYPE_BYTE,
true,
false);
} else {
return null;
}
default:
return null;
}
}
protected ImageTypeSpecifier produce() {
switch (csCode) {
case JPEG.JCS_GRAYSCALE:
return ImageTypeSpecifier.createFromBufferedImageType
(BufferedImage.TYPE_BYTE_GRAY);
case JPEG.JCS_RGB:
return ImageTypeSpecifier.createInterleaved(JPEG.JCS.sRGB,
JPEG.bOffsRGB,
DataBuffer.TYPE_BYTE,
false,
false);
case JPEG.JCS_RGBA:
return ImageTypeSpecifier.createPacked(JPEG.JCS.sRGB,
0xff000000,
0x00ff0000,
0x0000ff00,
0x000000ff,
DataBuffer.TYPE_INT,
false);
case JPEG.JCS_YCC:
if (JPEG.JCS.getYCC() != null) {
return ImageTypeSpecifier.createInterleaved(
JPEG.JCS.getYCC(),
JPEG.bandOffsets[2],
DataBuffer.TYPE_BYTE,
false,
false);
} else {
return null;
}
case JPEG.JCS_YCCA:
if (JPEG.JCS.getYCC() != null) {
return ImageTypeSpecifier.createInterleaved(
JPEG.JCS.getYCC(),
JPEG.bandOffsets[3],
DataBuffer.TYPE_BYTE,
true,
false);
} else {
return null;
}
default:
return null;
}
}
protected ImageTypeSpecifier produce() {
switch (csCode) {
case JPEG.JCS_GRAYSCALE:
return ImageTypeSpecifier.createFromBufferedImageType
(BufferedImage.TYPE_BYTE_GRAY);
case JPEG.JCS_RGB:
return ImageTypeSpecifier.createInterleaved(JPEG.JCS.sRGB,
JPEG.bOffsRGB,
DataBuffer.TYPE_BYTE,
false,
false);
case JPEG.JCS_RGBA:
return ImageTypeSpecifier.createPacked(JPEG.JCS.sRGB,
0xff000000,
0x00ff0000,
0x0000ff00,
0x000000ff,
DataBuffer.TYPE_INT,
false);
case JPEG.JCS_YCC:
if (JPEG.JCS.getYCC() != null) {
return ImageTypeSpecifier.createInterleaved(
JPEG.JCS.getYCC(),
JPEG.bandOffsets[2],
DataBuffer.TYPE_BYTE,
false,
false);
} else {
return null;
}
case JPEG.JCS_YCCA:
if (JPEG.JCS.getYCC() != null) {
return ImageTypeSpecifier.createInterleaved(
JPEG.JCS.getYCC(),
JPEG.bandOffsets[3],
DataBuffer.TYPE_BYTE,
true,
false);
} else {
return null;
}
default:
return null;
}
}
protected ImageTypeSpecifier produce() {
switch (csCode) {
case JPEG.JCS_GRAYSCALE:
return ImageTypeSpecifier.createFromBufferedImageType
(BufferedImage.TYPE_BYTE_GRAY);
case JPEG.JCS_RGB:
return ImageTypeSpecifier.createInterleaved(JPEG.JCS.sRGB,
JPEG.bOffsRGB,
DataBuffer.TYPE_BYTE,
false,
false);
case JPEG.JCS_RGBA:
return ImageTypeSpecifier.createPacked(JPEG.JCS.sRGB,
0xff000000,
0x00ff0000,
0x0000ff00,
0x000000ff,
DataBuffer.TYPE_INT,
false);
case JPEG.JCS_YCC:
if (JPEG.JCS.getYCC() != null) {
return ImageTypeSpecifier.createInterleaved(
JPEG.JCS.getYCC(),
JPEG.bandOffsets[2],
DataBuffer.TYPE_BYTE,
false,
false);
} else {
return null;
}
case JPEG.JCS_YCCA:
if (JPEG.JCS.getYCC() != null) {
return ImageTypeSpecifier.createInterleaved(
JPEG.JCS.getYCC(),
JPEG.bandOffsets[3],
DataBuffer.TYPE_BYTE,
true,
false);
} else {
return null;
}
default:
return null;
}
}
/**
* Creates a new GifSequenceWriter.
*
* @param outputStream
* the ImageOutputStream to be written to
* @param imageType
* one of the imageTypes specified in BufferedImage
* @param timeBetweenFramesMS
* the time between frames in miliseconds
* @param loopContinuously
* wether the gif should loop repeatedly
* @throws IOException if the underlying stream throws it or if no gif ImageWriters are found
*/
public GifSequenceWriter(ImageOutputStream outputStream, int imageType,
int timeBetweenFramesMS, boolean loopContinuously)
throws IOException {
// my method to create a writer
gifWriter = getWriter();
imageWriteParam = gifWriter.getDefaultWriteParam();
ImageTypeSpecifier imageTypeSpecifier = ImageTypeSpecifier
.createFromBufferedImageType(imageType);
imageMetaData = gifWriter.getDefaultImageMetadata(imageTypeSpecifier,
imageWriteParam);
String metaFormatName = imageMetaData.getNativeMetadataFormatName();
IIOMetadataNode root = (IIOMetadataNode) imageMetaData
.getAsTree(metaFormatName);
IIOMetadataNode graphicsControlExtensionNode = getNode(root,
"GraphicControlExtension");
graphicsControlExtensionNode.setAttribute("disposalMethod", "none");
graphicsControlExtensionNode.setAttribute("userInputFlag", "FALSE");
graphicsControlExtensionNode.setAttribute("transparentColorFlag",
"FALSE");
graphicsControlExtensionNode.setAttribute("delayTime", Integer
.toString(timeBetweenFramesMS / 10));
graphicsControlExtensionNode.setAttribute("transparentColorIndex", "0");
IIOMetadataNode commentsNode = getNode(root, "CommentExtensions");
commentsNode.setAttribute("CommentExtension", "Created by MAH");
IIOMetadataNode appEntensionsNode = getNode(root,
"ApplicationExtensions");
IIOMetadataNode child = new IIOMetadataNode("ApplicationExtension");
child.setAttribute("applicationID", "NETSCAPE");
child.setAttribute("authenticationCode", "2.0");
int loop = loopContinuously ? 0 : 1;
child.setUserObject(new byte[] { 0x1, (byte) (loop & 0xFF),
(byte) ((loop >> 8) & 0xFF) });
appEntensionsNode.appendChild(child);
imageMetaData.setFromTree(metaFormatName, root);
gifWriter.setOutput(outputStream);
gifWriter.prepareWriteSequence(null);
}
protected ImageTypeSpecifier produce() {
switch (csCode) {
case JPEG.JCS_GRAYSCALE:
return ImageTypeSpecifier.createFromBufferedImageType
(BufferedImage.TYPE_BYTE_GRAY);
case JPEG.JCS_RGB:
return ImageTypeSpecifier.createInterleaved(JPEG.JCS.sRGB,
JPEG.bOffsRGB,
DataBuffer.TYPE_BYTE,
false,
false);
case JPEG.JCS_RGBA:
return ImageTypeSpecifier.createPacked(JPEG.JCS.sRGB,
0xff000000,
0x00ff0000,
0x0000ff00,
0x000000ff,
DataBuffer.TYPE_INT,
false);
case JPEG.JCS_YCC:
if (JPEG.JCS.getYCC() != null) {
return ImageTypeSpecifier.createInterleaved(
JPEG.JCS.getYCC(),
JPEG.bandOffsets[2],
DataBuffer.TYPE_BYTE,
false,
false);
} else {
return null;
}
case JPEG.JCS_YCCA:
if (JPEG.JCS.getYCC() != null) {
return ImageTypeSpecifier.createInterleaved(
JPEG.JCS.getYCC(),
JPEG.bandOffsets[3],
DataBuffer.TYPE_BYTE,
true,
false);
} else {
return null;
}
default:
return null;
}
}
protected ImageTypeSpecifier produce() {
switch (csCode) {
case JPEG.JCS_GRAYSCALE:
return ImageTypeSpecifier.createFromBufferedImageType
(BufferedImage.TYPE_BYTE_GRAY);
case JPEG.JCS_RGB:
return ImageTypeSpecifier.createInterleaved(JPEG.JCS.sRGB,
JPEG.bOffsRGB,
DataBuffer.TYPE_BYTE,
false,
false);
case JPEG.JCS_RGBA:
return ImageTypeSpecifier.createPacked(JPEG.JCS.sRGB,
0xff000000,
0x00ff0000,
0x0000ff00,
0x000000ff,
DataBuffer.TYPE_INT,
false);
case JPEG.JCS_YCC:
if (JPEG.JCS.getYCC() != null) {
return ImageTypeSpecifier.createInterleaved(
JPEG.JCS.getYCC(),
JPEG.bandOffsets[2],
DataBuffer.TYPE_BYTE,
false,
false);
} else {
return null;
}
case JPEG.JCS_YCCA:
if (JPEG.JCS.getYCC() != null) {
return ImageTypeSpecifier.createInterleaved(
JPEG.JCS.getYCC(),
JPEG.bandOffsets[3],
DataBuffer.TYPE_BYTE,
true,
false);
} else {
return null;
}
default:
return null;
}
}
private static ImageAndResolution convertToInputStreamPNG(BufferedImage buffImage, int dpi) throws IOException {
ImageWriter writer = getImageWriter("png");
ImageWriteParam imageWriterParams = writer.getDefaultWriteParam();
ImageTypeSpecifier typeSpecifier = ImageTypeSpecifier.createFromBufferedImageType(BufferedImage.TYPE_INT_ARGB);
IIOMetadata metadata = writer.getDefaultImageMetadata(typeSpecifier, imageWriterParams);
initDpiPNG(metadata, dpi);
return getImageAndResolution(buffImage, dpi, writer, imageWriterParams, metadata);
}