List of usage examples for javax.imageio ImageReader getDefaultReadParam
public ImageReadParam getDefaultReadParam()
From source file:org.apache.xmlgraphics.image.loader.impl.imageio.ImageLoaderImageIO.java
/** {@inheritDoc} */ public Image loadImage(ImageInfo info, Map hints, ImageSessionContext session) throws ImageException, IOException { RenderedImage imageData = null; IIOException firstException = null; IIOMetadata iiometa = (IIOMetadata) info.getCustomObjects().get(ImageIOUtil.IMAGEIO_METADATA); boolean ignoreMetadata = (iiometa != null); boolean providerIgnoresICC = false; Source src = session.needSource(info.getOriginalURI()); ImageInputStream imgStream = ImageUtil.needImageInputStream(src); try {/*from w w w . j av a 2s . c om*/ Iterator iter = ImageIO.getImageReaders(imgStream); while (iter.hasNext()) { ImageReader reader = (ImageReader) iter.next(); try { imgStream.mark(); ImageReadParam param = reader.getDefaultReadParam(); reader.setInput(imgStream, false, ignoreMetadata); final int pageIndex = ImageUtil.needPageIndexFromURI(info.getOriginalURI()); try { if (ImageFlavor.BUFFERED_IMAGE.equals(this.targetFlavor)) { imageData = reader.read(pageIndex, param); } else { imageData = reader.read(pageIndex, param); //imageData = reader.readAsRenderedImage(pageIndex, param); //TODO Reenable the above when proper listeners are implemented //to react to late pixel population (so the stream can be closed //properly). } if (iiometa == null) { iiometa = reader.getImageMetadata(pageIndex); } providerIgnoresICC = checkProviderIgnoresICC(reader.getOriginatingProvider()); break; //Quit early, we have the image } catch (IndexOutOfBoundsException indexe) { throw new ImageException("Page does not exist. Invalid image index: " + pageIndex); } catch (IllegalArgumentException iae) { //Some codecs like com.sun.imageio.plugins.wbmp.WBMPImageReader throw //IllegalArgumentExceptions when they have trouble parsing the image. throw new ImageException("Error loading image using ImageIO codec", iae); } catch (IIOException iioe) { if (firstException == null) { firstException = iioe; } else { log.debug("non-first error loading image: " + iioe.getMessage()); } } try { //Try fallback for CMYK images BufferedImage bi = getFallbackBufferedImage(reader, pageIndex, param); imageData = bi; firstException = null; //Clear exception after successful fallback attempt break; } catch (IIOException iioe) { //ignore } imgStream.reset(); } finally { reader.dispose(); } } } finally { ImageUtil.closeQuietly(src); //TODO Some codecs may do late reading. } if (firstException != null) { throw new ImageException("Error while loading image: " + firstException.getMessage(), firstException); } if (imageData == null) { throw new ImageException("No ImageIO ImageReader found ."); } ColorModel cm = imageData.getColorModel(); Color transparentColor = null; if (cm instanceof IndexColorModel) { //transparent color will be extracted later from the image } else { if (providerIgnoresICC && cm instanceof ComponentColorModel) { // Apply ICC Profile to Image by creating a new image with a new // color model. ICC_Profile iccProf = tryToExctractICCProfile(iiometa); if (iccProf != null) { ColorModel cm2 = new ComponentColorModel(new ICC_ColorSpace(iccProf), cm.hasAlpha(), cm.isAlphaPremultiplied(), cm.getTransparency(), cm.getTransferType()); WritableRaster wr = Raster.createWritableRaster(imageData.getSampleModel(), null); imageData.copyData(wr); BufferedImage bi = new BufferedImage(cm2, wr, cm2.isAlphaPremultiplied(), null); imageData = bi; cm = cm2; } } // ImageIOUtil.dumpMetadataToSystemOut(iiometa); // Retrieve the transparent color from the metadata if (iiometa != null && iiometa.isStandardMetadataFormatSupported()) { Element metanode = (Element) iiometa.getAsTree(IIOMetadataFormatImpl.standardMetadataFormatName); Element dim = ImageIOUtil.getChild(metanode, "Transparency"); if (dim != null) { Element child; child = ImageIOUtil.getChild(dim, "TransparentColor"); if (child != null) { String value = child.getAttribute("value"); if (value == null || value.length() == 0) { //ignore } else if (cm.getNumColorComponents() == 1) { int gray = Integer.parseInt(value); transparentColor = new Color(gray, gray, gray); } else { StringTokenizer st = new StringTokenizer(value); transparentColor = new Color(Integer.parseInt(st.nextToken()), Integer.parseInt(st.nextToken()), Integer.parseInt(st.nextToken())); } } } } } if (ImageFlavor.BUFFERED_IMAGE.equals(this.targetFlavor)) { return new ImageBuffered(info, (BufferedImage) imageData, transparentColor); } else { return new ImageRendered(info, imageData, transparentColor); } }
From source file:org.carcv.core.model.file.FileCarImage.java
/** * Reads a rectangular region from an image in the inStream. * * @param inStream the InputStream from which to load the image fraction * @param rect specifies the rectangular region to load as the image * @throws IOException if an error during loading occurs *//*from w ww .j ava2 s . c o m*/ public void loadFragment(InputStream inStream, Rectangle rect) throws IOException { ImageInputStream imageStream = ImageIO.createImageInputStream(inStream); ImageReader reader = ImageIO.getImageReaders(imageStream).next(); ImageReadParam param = reader.getDefaultReadParam(); param.setSourceRegion(rect); reader.setInput(imageStream, true, true); this.image = reader.read(0, param); reader.dispose(); imageStream.close(); }
From source file:org.dcm4che2.tool.dcm2jpg.Dcm2Jpg.java
public void convert(File src, File dest) throws IOException { Iterator<ImageReader> iter = ImageIO.getImageReadersByFormatName("DICOM"); ImageReader reader = iter.next(); DicomImageReadParam param = (DicomImageReadParam) reader.getDefaultReadParam(); param.setWindowCenter(center);/*from w w w. j a va 2s .co m*/ param.setWindowWidth(width); param.setVoiLutFunction(vlutFct); param.setPresentationState(prState); param.setPValue2Gray(pval2gray); param.setAutoWindowing(autoWindowing); ImageInputStream iis = ImageIO.createImageInputStream(src); BufferedImage bi; try { reader.setInput(iis, false); bi = reader.read(frame - 1, param); if (bi == null) { System.out.println("\nError: " + src + " - couldn't read!"); return; } if (imageWriterClassname == null) { encodeByJPEGEncoder(bi, dest); } else { encodeByImageIO(bi, dest); } } finally { CloseUtils.safeClose(iis); } System.out.print('.'); }
From source file:org.freecine.filmscan.ScanStrip.java
/** Load the scan strip image from disk/* ww w .j a v a 2 s. c o m*/ */ private void loadImage() { ImageReader reader; try { // PlanarImage img = JAI.create( "fileload", fname ); ImageInputStream istrm = new FileImageInputStream(file); reader = ImageIO.getImageReadersByFormatName("TIFF").next(); reader.setInput(istrm); ImageReadParam param = reader.getDefaultReadParam(); /* Set the color mode to linear sRGB as we don't have a better profile for the scanner/film available */ ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_LINEAR_RGB); ImageLayout layout = new ImageLayout(); ColorModel cm = new ComponentColorModel(cs, false, false, ColorModel.OPAQUE, DataBuffer.TYPE_USHORT); layout.setColorModel(cm); RenderingHints hints = new RenderingHints(JAI.KEY_IMAGE_LAYOUT, layout); stripImage = ImageReadDescriptor.create(istrm, 0, false, false, false, null, null, param, reader, hints); System.out.println("Color model " + stripImage.getColorModel()); // BufferedImage inImg = reader.read( 0, param ); } catch (FileNotFoundException ex) { System.out.println(ex.getMessage()); log.error("Strip file " + file + " not found", ex); } catch (IOException ex) { log.error("IO error reading strip " + file + ": ", ex); } }
From source file:org.hippoecm.frontend.plugins.gallery.imageutil.ImageUtils.java
/** * Converts image raster data to a JPEG with RGB color space. Only images with color space CMYK and YCCK are * converted, other images are left untouched. * * Rationale: Java's ImageIO can't process 4-component images and Java2D can't apply AffineTransformOp either, * so we have to convert raster data to a JPG with RGB color space. * * The technique used in this method is due to Mark Stephens, and free for any use. See * http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4799903 or * http://www.mail-archive.com/java2d-interest@capra.eng.sun.com/msg03247.html * * @param is the image data//from ww w. j ava2 s . c o m * @param colorModel the color model of the image * @return the RGB version of the supplied image */ public static InputStream convertToRGB(InputStream is, ColorModel colorModel) throws IOException, UnsupportedImageException { if (colorModel != ColorModel.CMYK && colorModel != ColorModel.YCCK) { return is; } // Get an ImageReader. ImageInputStream input = ImageIO.createImageInputStream(is); try { Iterator<ImageReader> readers = ImageIO.getImageReaders(input); if (readers == null || !readers.hasNext()) { throw new UnsupportedImageException("No ImageReaders found"); } ImageReader reader = readers.next(); reader.setInput(input); Raster raster = reader.readRaster(0, reader.getDefaultReadParam()); int w = raster.getWidth(); int h = raster.getHeight(); byte[] rgb = new byte[w * h * 3]; switch (colorModel) { case YCCK: { float[] Y = raster.getSamples(0, 0, w, h, 0, (float[]) null); float[] Cb = raster.getSamples(0, 0, w, h, 1, (float[]) null); float[] Cr = raster.getSamples(0, 0, w, h, 2, (float[]) null); float[] K = raster.getSamples(0, 0, w, h, 3, (float[]) null); for (int i = 0, imax = Y.length, base = 0; i < imax; i++, base += 3) { float k = 220 - K[i], y = 255 - Y[i], cb = 255 - Cb[i], cr = 255 - Cr[i]; double val = y + 1.402 * (cr - 128) - k; val = (val - 128) * .65f + 128; rgb[base] = val < 0.0 ? (byte) 0 : val > 255.0 ? (byte) 0xff : (byte) (val + 0.5); val = y - 0.34414 * (cb - 128) - 0.71414 * (cr - 128) - k; val = (val - 128) * .65f + 128; rgb[base + 1] = val < 0.0 ? (byte) 0 : val > 255.0 ? (byte) 0xff : (byte) (val + 0.5); val = y + 1.772 * (cb - 128) - k; val = (val - 128) * .65f + 128; rgb[base + 2] = val < 0.0 ? (byte) 0 : val > 255.0 ? (byte) 0xff : (byte) (val + 0.5); } break; } case CMYK: { int[] C = raster.getSamples(0, 0, w, h, 0, (int[]) null); int[] M = raster.getSamples(0, 0, w, h, 1, (int[]) null); int[] Y = raster.getSamples(0, 0, w, h, 2, (int[]) null); int[] K = raster.getSamples(0, 0, w, h, 3, (int[]) null); for (int i = 0, imax = C.length, base = 0; i < imax; i++, base += 3) { int c = 255 - C[i]; int m = 255 - M[i]; int y = 255 - Y[i]; int k = 255 - K[i]; float kk = k / 255f; rgb[base] = (byte) (255 - Math.min(255f, c * kk + k)); rgb[base + 1] = (byte) (255 - Math.min(255f, m * kk + k)); rgb[base + 2] = (byte) (255 - Math.min(255f, y * kk + k)); } break; } } // from other image types we know InterleavedRaster's can be // manipulated by AffineTransformOp, so create one of those. raster = Raster.createInterleavedRaster(new DataBufferByte(rgb, rgb.length), w, h, w * 3, 3, new int[] { 0, 1, 2 }, null); ColorSpace cs = ColorSpace.getInstance(ColorSpace.CS_sRGB); java.awt.image.ColorModel cm = new ComponentColorModel(cs, false, true, Transparency.OPAQUE, DataBuffer.TYPE_BYTE); BufferedImage convertedImage = new BufferedImage(cm, (WritableRaster) raster, true, null); ByteArrayOutputStream os = new ByteArrayOutputStream(); ImageIO.write(convertedImage, "jpg", os); return new ByteArrayInputStream(os.toByteArray()); } finally { IOUtils.closeQuietly(is); if (input != null) { input.close(); } } }
From source file:org.jimcat.services.imagemanager.ImageUtil.java
/** * use this methode to load an image from a given byte array * //from w w w.j a v a2 s.co m * @param data - * the byte array containing an encoded image * @param quality * the rendering quality * @return - a Buffered Image containing image. Its size is limited by * SOURCE_BOUNDING_BOX constant * @throws IOException - * if something goes wrong */ public static BufferedImage loadImage(byte[] data, ImageQuality quality) throws IOException { // read first element ImageReader reader = getReaderForImage(data); // get image dimension and calculate resulting image size int width = reader.getWidth(0); int height = reader.getHeight(0); Dimension size = getScaledDimension(width, height, SOURCE_BOUNDING_BOX, false); // performe read BufferedImage bi = null; try { if (USE_TILES) { // if image is smaller than a tile if (width <= IMAGE_TILE_SIZE.width && height <= IMAGE_TILE_SIZE.height) { bi = reader.read(0); } else { // prepaire reader ImageReadParam param = reader.getDefaultReadParam(); // so image is bigger than a tile // a) check if reader supports source scaling if (param.canSetSourceRenderSize()) { // fine => do it so param.setSourceRenderSize(size); bi = reader.read(0, param); } else { // so, scaling has to be done by hand bi = loadImageWithTiles(reader, size, quality); } } } else { bi = loadImageWithSubSampling(reader, size, quality); } } finally { reader.dispose(); } return bi; }
From source file:org.jimcat.services.imagemanager.ImageUtil.java
/** * this methode will load given image using tiles (saving memory) * //w w w .jav a2 s. c om * this strategie is spliting the original image up into smaller parts * called tiles. Those tiles are downscaled one by one using given quality. * This results int probably best possible quality but may cost a lot of * time. * * @param reader - * the reader to load image from * @param size - * the resulting image size * @param quality - * the quality used for necessary rendering * @return the image as buffered image * @throws IOException */ @SuppressWarnings("unused") private static BufferedImage loadImageWithTiles(ImageReader reader, Dimension size, ImageQuality quality) throws IOException { // the image buffer used to load tiles ImageTypeSpecifier imageSpec = reader.getImageTypes(0).next(); BufferedImage tile = imageSpec.createBufferedImage(IMAGE_TILE_SIZE.width, IMAGE_TILE_SIZE.height); // the image the result is rendered into BufferedImage result = new BufferedImage(size.width, size.height, BufferedImage.TYPE_INT_ARGB); Graphics2D g = result.createGraphics(); g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, quality.getHint()); // prepaire image reader parameter ImageReadParam param = reader.getDefaultReadParam(); param.setDestination(tile); // count tiles int width = reader.getWidth(0); int height = reader.getHeight(0); int numX = (int) Math.ceil(width / (float) IMAGE_TILE_SIZE.width); int numY = (int) Math.ceil(height / (float) IMAGE_TILE_SIZE.height); float aspectX = (float) IMAGE_TILE_SIZE.width / width; float aspectY = (float) IMAGE_TILE_SIZE.height / height; // target tile dimension int targetTileWidth = (int) (size.width * aspectX); int targetTileHeight = (int) (size.height * aspectY); // load tiles Rectangle sourceRegion = new Rectangle(); Rectangle targetRegion = new Rectangle(); for (int i = 0; i < numX; i++) { // line increment sourceRegion.x = i * IMAGE_TILE_SIZE.width; sourceRegion.width = Math.min(IMAGE_TILE_SIZE.width, width - sourceRegion.x); targetRegion.x = i * targetTileWidth; targetRegion.width = Math.min(targetTileWidth, size.width - targetRegion.x); for (int j = 0; j < numY; j++) { // row increment sourceRegion.y = j * IMAGE_TILE_SIZE.height; sourceRegion.height = Math.min(IMAGE_TILE_SIZE.height, height - sourceRegion.y); targetRegion.y = j * targetTileHeight; targetRegion.height = Math.min(targetTileHeight, size.height - targetRegion.y); // performe read param.setSourceRegion(sourceRegion); reader.read(0, param); // insert into resulting image int dx1 = targetRegion.x; int dx2 = targetRegion.x + targetRegion.width; int dy1 = targetRegion.y; int dy2 = targetRegion.y + targetRegion.height; g.drawImage(tile, dx1, dy1, dx2, dy2, 0, 0, sourceRegion.width, sourceRegion.height, null); } } // finish drawing g.dispose(); // return result return result; }
From source file:org.jimcat.services.imagemanager.ImageUtil.java
/** * this methode will load given image using a subsample rate * //from w ww . jav a 2 s. com * this strategie is just reading a subset of images lines ans rowes to * reduce memory usage and cpu time. * * @param reader - * the reader to load image from * @param size - * the resulting image size * @param quality - * the quality used for necessary rendering * @return the image as buffered image * @throws IOException */ private static BufferedImage loadImageWithSubSampling(ImageReader reader, Dimension size, ImageQuality quality) throws IOException { // prepaire image reader parameter ImageReadParam param = reader.getDefaultReadParam(); // calculate subsampling values int width = reader.getWidth(0); int height = reader.getHeight(0); int rateX = width / size.width; int rateY = height / size.height; param.setSourceSubsampling(rateX, rateY, 0, 0); // load image with subsamples BufferedImage img = reader.read(0, param); // scale to final size BufferedImage result = getScaledInstance(img, size, quality); // return result return result; }
From source file:org.medici.bia.controller.manuscriptviewer.IIPImageServerController.java
/** * /*from ww w . j a v a 2 s .c om*/ * @param fileName * @param pageImage * @param tileNumber * @param xCoordinate * @param yCoordinate * @param httpServletResponse */ @SuppressWarnings("unused") private void generateTiledImage(String fileName, Integer pageImage, Integer tileNumber, Integer xCoordinate, Integer yCoordinate, HttpServletResponse httpServletResponse) { File imageFile = new File( ApplicationPropertyManager.getApplicationProperty("iipimage.image.path") + fileName); Integer imageWidth = new Integer(0); Integer imageHeight = new Integer(0); Integer tileWidth = new Integer(0); Integer tileHeight = new Integer(0); Integer resolutionNumber = new Integer(0); Integer convertedPageImage = new Integer(0); ImageInputStream imageInputStream = null; ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(); InputStream inputStream = null; try { if (imageFile.canRead()) { // Reading complete tiff information imageInputStream = ImageIO.createImageInputStream(imageFile); } else { logger.error("File " + imageFile.toString() + " is not present on filesystem. "); imageFile = new File(ApplicationPropertyManager.getApplicationProperty("iipimage.image.path") + ApplicationPropertyManager.getApplicationProperty("iipimage.image.notavailable")); if (imageFile.canRead()) { // Reading complete tiff information imageInputStream = ImageIO.createImageInputStream(imageFile); } else { logger.error("File " + imageFile.toString() + " is not present on filesystem. "); } } if (imageInputStream != null) { Iterator<ImageReader> readers = ImageIO.getImageReaders(imageInputStream); if (readers.hasNext()) { ImageReader reader = readers.next(); reader.setInput(imageInputStream, false, true); tileWidth = reader.getTileWidth(0); tileHeight = reader.getTileHeight(0); imageWidth = reader.getWidth(0); imageHeight = reader.getHeight(0); // Last level is not readable, I don't know why but i remove // this resolutionNumber = reader.getNumImages(true) - 1; // Calculate of image position, final -1 is beacause index // start from 0 and not from 1 convertedPageImage = resolutionNumber - pageImage; // We read our specific tile ImageReadParam param = reader.getDefaultReadParam(); param.setSourceRegion( new Rectangle(new Point(xCoordinate * tileWidth, yCoordinate * tileHeight), new Dimension(tileWidth, tileHeight))); BufferedImage subImage = reader.read(convertedPageImage, param); // preparing image for output ImageIO.write(subImage, "jpeg", byteArrayOutputStream); inputStream = new ByteArrayInputStream(byteArrayOutputStream.toByteArray()); // writing image to output httpServletResponse.setContentType("image/jpeg"); IOUtils.copy(inputStream, httpServletResponse.getOutputStream()); // Flushing request httpServletResponse.getOutputStream().flush(); } } else { logger.error("File " + imageFile.toString() + " is not present on filesystem."); } } catch (IOException ioException) { logger.error(ioException); } finally { try { if (inputStream != null) { inputStream.close(); } } catch (IOException ioException) { } try { if (byteArrayOutputStream != null) { byteArrayOutputStream.close(); } } catch (IOException ioException) { } try { if (imageInputStream != null) { imageInputStream.close(); } } catch (IOException ioException) { } } }
From source file:org.olat.core.commons.services.image.spi.ImageHelperImpl.java
private static SizeAndBufferedImage calcScaledSize(ImageInputStream stream, String suffix, int maxWidth, int maxHeight, boolean fill) { Iterator<ImageReader> iter = ImageIO.getImageReadersBySuffix(suffix); if (iter.hasNext()) { ImageReader reader = iter.next(); try {/* w w w. j av a2 s . co m*/ reader.setInput(stream, true, true); int width = reader.getWidth(reader.getMinIndex()); int height = reader.getHeight(reader.getMinIndex()); Size size = new Size(width, height, false); Size scaledSize = computeScaledSize(width, height, maxWidth, maxHeight, fill); SizeAndBufferedImage all = new SizeAndBufferedImage(size, scaledSize); int readerMinIndex = reader.getMinIndex(); ImageReadParam param = reader.getDefaultReadParam(); Iterator<ImageTypeSpecifier> imageTypes = reader.getImageTypes(0); while (imageTypes.hasNext()) { try { ImageTypeSpecifier imageTypeSpecifier = imageTypes.next(); int bufferedImageType = imageTypeSpecifier.getBufferedImageType(); if (bufferedImageType == BufferedImage.TYPE_BYTE_GRAY) { param.setDestinationType(imageTypeSpecifier); } double memoryKB = (width * height * 4) / 1024d; if (memoryKB > 2000) {// check limit at 20MB double free = Runtime.getRuntime().freeMemory() / 1024d; if (free > memoryKB) { all.setImage(reader.read(readerMinIndex, param)); } else { // make sub sampling to save memory int ratio = (int) Math.round(Math.sqrt(memoryKB / free)); param.setSourceSubsampling(ratio, ratio, 0, 0); all.setImage(reader.read(readerMinIndex, param)); } } else { all.setImage(reader.read(readerMinIndex, param)); } return all; } catch (IllegalArgumentException e) { log.warn(e.getMessage(), e); } } } catch (IOException e) { log.error(e.getMessage(), e); } finally { reader.dispose(); } } else { log.error("No reader found for given format: " + suffix, null); } return null; }