Example usage for javax.imageio ImageIO getImageReadersByFormatName

List of usage examples for javax.imageio ImageIO getImageReadersByFormatName

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Introduction

In this page you can find the example usage for javax.imageio ImageIO getImageReadersByFormatName.

Prototype

public static Iterator<ImageReader> getImageReadersByFormatName(String formatName)

Source Link

Document

Returns an Iterator containing all currently registered ImageReader s that claim to be able to decode the named format.

Usage

From source file:org.psystems.dicomweb.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);/*  ww w. j a  v  a 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;
    OutputStream out = null;
    try {
        reader.setInput(iis, false);
        bi = reader.read(frame - 1, param);
        if (bi == null) {
            System.out.println("\nError: " + src + " - couldn't read!");
            return;
        }
        out = new BufferedOutputStream(new FileOutputStream(dest));
        JPEGImageEncoder enc = JPEGCodec.createJPEGEncoder(out);
        enc.encode(bi);
    } finally {
        CloseUtils.safeClose(iis);
        CloseUtils.safeClose(out);
    }
    System.out.print('.');
}

From source file:org.psystems.dicom.daemon.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 ww  w  .  j a  v a  2  s. c  o m
    param.setWindowWidth(width);
    param.setVoiLutFunction(vlutFct);
    param.setPresentationState(prState);
    param.setPValue2Gray(pval2gray);
    param.setAutoWindowing(autoWindowing);
    ImageInputStream iis = ImageIO.createImageInputStream(src);
    BufferedImage bi;
    OutputStream out = null;
    try {
        reader.setInput(iis, false);
        if (reader.getNumImages(false) <= 0) {
            System.out.println("\nError: " + src + " - Don't haven any images!");
            return;
        }
        //            System.out.println("!!! frame="+frame+" p="+reader.getNumImages(false));
        bi = reader.read(frame - 1, param);
        if (bi == null) {
            System.out.println("\nError: " + src + " - couldn't read!");
            return;
        }
        out = new BufferedOutputStream(new FileOutputStream(dest));
        JPEGImageEncoder enc = JPEGCodec.createJPEGEncoder(out);
        enc.encode(bi);
    } finally {
        CloseUtils.safeClose(iis);
        CloseUtils.safeClose(out);
    }
    System.out.print('.');
}

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  ava 2 s  . com*/
    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:com.sketchy.utils.image.SketchyImage.java

public static SketchyImage load(File file) throws Exception {
    SketchyImage sketchyImage = null;/*from  w w  w. j  av a 2  s  .c  o m*/

    if (!file.exists() || !file.canRead()) {
        throw new Exception("Can not find or read File: " + file.getPath() + "!");
    }

    if (!StringUtils.endsWithIgnoreCase(file.getName(), ".png")) {
        throw new Exception("Can not load SketchyImage! Must be a .png file!");
    }

    Iterator<ImageReader> imageReaders = ImageIO.getImageReadersByFormatName("png");
    ImageReader imageReader = null;
    if (imageReaders.hasNext()) { // Just get first one
        imageReader = imageReaders.next();
    }
    if (imageReader == null) {
        // this should never happen!! if so.. we got problems
        throw new Exception("Can not find ImageReader for .png Files!");
    }

    ImageInputStream is = null;
    try {
        is = ImageIO.createImageInputStream(file);
        imageReader.setInput(is, true);
        IIOMetadata metaData = imageReader.getImageMetadata(0); // always get first image
        IIOMetadataNode metaDataNode = (IIOMetadataNode) metaData
                .getAsTree(metaData.getNativeMetadataFormatName());
        if (metaDataNode == null) {
            throw new Exception("Error retreiving MetaData properties from .png File!");
        }

        NodeList childNodes = metaDataNode.getElementsByTagName("pHYs");
        // only look in the first node
        if (childNodes.getLength() == 0) {
            throw new Exception("Invalid SketchyImage file. It must contain 'pixelsPerUnit' MetaData!");
        }
        IIOMetadataNode physNode = (IIOMetadataNode) childNodes.item(0);
        String pixelsPerUnitXAxisAttribute = physNode.getAttribute("pixelsPerUnitXAxis");
        String pixelsPerUnitYAxisAttribute = physNode.getAttribute("pixelsPerUnitYAxis");
        // String unitSpecifierAttribute = physNode.getAttribute("unitSpecifier"); Just assuming meter
        if (StringUtils.isBlank(pixelsPerUnitXAxisAttribute)) {
            throw new Exception("Invalid SketchyImage file. It must contain 'pixelsPerUnitXAxis' MetaData!");
        }
        if (StringUtils.isBlank(pixelsPerUnitYAxisAttribute)) {
            throw new Exception("Invalid SketchyImage file. It must contain 'pixelsPerUnitYAxis' MetaData!");
        }

        int pixelsPerUnitXAxis;
        try {
            pixelsPerUnitXAxis = Integer.parseInt(pixelsPerUnitXAxisAttribute);
            if (pixelsPerUnitXAxis <= 0)
                throw new Exception("Value must be > 0");
        } catch (Exception e) {
            throw new Exception("Invalid 'pixelsPerUnitXAxis' MetaData Attribute! " + e.getMessage());
        }

        int pixelsPerUnitYAxis;
        try {
            pixelsPerUnitYAxis = Integer.parseInt(pixelsPerUnitYAxisAttribute);
            if (pixelsPerUnitYAxis <= 0)
                throw new Exception("Value must be > 0");
        } catch (Exception e) {
            throw new Exception("Invalid 'pixelsPerUnitYAxis' MetaData Attribute! " + e.getMessage());
        }

        // We successfully processed the MetaData.. now read/set the image 
        BufferedImage bufferedImage = imageReader.read(0); // always get first image

        double xPixelsPerMM = pixelsPerUnitXAxis / 1000.0;
        double yPixelsPerMM = pixelsPerUnitYAxis / 1000.0;

        sketchyImage = new SketchyImage(bufferedImage, xPixelsPerMM, yPixelsPerMM);
    } catch (Exception e) {
        throw new Exception("Error Loading SketchyImage File: " + file.getPath() + "! " + e.getMessage());
    } finally {
        IOUtils.closeQuietly(is);
    }

    return sketchyImage;
}

From source file:org.photovault.image.ImageIOImage.java

/**
 * Parse JPEG metadata structure and store the data in metadata and exifData fields
 * @param top The metadata object tree in format "javax_imageio_jpeg_image_1.0"
 *///from   ww  w .j  a  v a  2 s  . co m
private void parseJPEGMetadata(IIOMetadataNode top) {
    NodeList candidates = top.getElementsByTagName("unknown");
    for (int n = 0; n < candidates.getLength(); n++) {
        Node node = candidates.item(n);
        if (node instanceof IIOMetadataNode) {
            IIOMetadataNode m = (IIOMetadataNode) node;
            Object obj = m.getUserObject();
            if (obj instanceof byte[]) {
                byte[] data = (byte[]) obj;
                if (data[0] == 'E' && data[1] == 'x' && data[2] == 'i' && data[3] == 'f') {
                    log.debug("exif data found");
                    InputStream is = new ByteArrayInputStream(data, 6, data.length - 6);
                    try {
                        ImageInputStream metadataStream = ImageIO.createImageInputStream(is);
                        Iterator readers = ImageIO.getImageReadersByFormatName("TIFF");
                        if (readers.hasNext()) {
                            ImageReader reader = (ImageReader) readers.next();
                            reader.setInput(metadataStream);
                            IIOMetadata iioMetadata = reader.getImageMetadata(0);
                            this.metadata = TIFFDirectory.createFromMetadata(iioMetadata);
                            TIFFField exifField = this.metadata
                                    .getTIFFField(EXIFParentTIFFTagSet.TAG_EXIF_IFD_POINTER);
                        }
                    } catch (IOException ex) {
                        ex.printStackTrace();
                    }
                } else if (data.length > 28 && data[28] == 0) {
                    String id = null;
                    try {
                        id = new String(data, 0, 28, "utf-8");
                    } catch (UnsupportedEncodingException e) {
                        log.error(e);
                    }
                    if ("http://ns.adobe.com/xap/1.0/".equals(id)) {

                        // XMP metadata
                        try {
                            String xmpPacket = new String(data, 29, data.length - 29, "utf-8");
                            XMPMeta xmp = XMPMetaFactory.parseFromString(xmpPacket);
                            log.debug("Found XMP metadata");
                        } catch (XMPException e) {
                            log.warn("caught XMP exception while parsing metadata", e);
                        } catch (UnsupportedEncodingException e) {
                            log.error(e);
                        }
                    }
                }
            }
        }
    }
}

From source file:edu.emory.library.tast.images.admin.ImagesBean.java

public String uploadNewImage() {

    try {/*  w w  w.  j  ava2  s  .  c  o  m*/

        if (uploadedImage == null)
            return null;

        // check type
        String extension = (String) allowedTypes.get(uploadedImage.getContentType());
        if (extension == null)
            return null;

        // new filename
        File file = null;
        String fileName = null;
        String imageDir = AppConfig.getConfiguration().getString(AppConfig.IMAGES_DIRECTORY);
        do {
            fileName = new UidGenerator().generate() + "." + extension;
            file = new File(imageDir, fileName);
        } while (file.exists());

        // copy
        FileOutputStream imgFileStream = new FileOutputStream(file);
        int size = IOUtils.copy(uploadedImage.getInputStream(), imgFileStream);
        imgFileStream.flush();
        imgFileStream.close();

        // get image info
        Iterator readerIter = ImageIO.getImageReadersByFormatName(extension);
        ImageReader rdr = (ImageReader) readerIter.next();
        if (rdr == null)
            return null;
        rdr.setInput(ImageIO.createImageInputStream(file), true);

        // get width and height
        int width = rdr.getWidth(0);
        int height = rdr.getHeight(0);

        // replace current image
        imageWidth = width;
        imageHeight = height;
        imageSize = size;
        imageMimeType = uploadedImage.getContentType();
        imageFileName = fileName;

        // all ok
        uploadBoxShown = false;

    } catch (IOException e) {
        throw new RuntimeException(e);
    }

    return null;
}

From source file:com.funambol.foundation.util.MediaUtils.java

/**
 * Creates the thumbnail.//from w w w  .ja  va2s .c o  m
 *
 * @param imageFile the image file
 * @param thumbFile the empty thumbnail file
 * @param thumbX the width of the thumbnail
 * @param thumbY the height of the thumbnail
 * @param imageName the image file name with extension
 * @param tolerance the percentage of tolerance before creating a thumbnail
 * @return true is the thumbnail has been created, false otherwise
 * @throws IOException if an error occurs
 */
private static boolean createThumbnail(File imageFile, File thumbFile, int thumbX, int thumbY, String imageName,
        double tolerance) throws IOException {

    FileInputStream fileis = null;
    ImageInputStream imageis = null;

    Iterator readers = null;

    try {

        readers = ImageIO.getImageReadersByFormatName(imageName.substring(imageName.lastIndexOf('.') + 1));
        if (readers == null || (!readers.hasNext())) {
            throw new IOException("File not supported");
        }

        ImageReader reader = (ImageReader) readers.next();

        fileis = new FileInputStream(imageFile);
        imageis = ImageIO.createImageInputStream(fileis);
        reader.setInput(imageis, true);

        // Determines thumbnail height, width and quality
        int thumbWidth = thumbX;
        int thumbHeight = thumbY;

        double thumbRatio = (double) thumbWidth / (double) thumbHeight;
        int imageWidth = reader.getWidth(0);
        int imageHeight = reader.getHeight(0);

        //
        // Don't create the thumbnail if the original file is smaller
        // than required size increased by % tolerance
        //
        if (imageWidth <= (thumbWidth * (1 + tolerance / 100))
                && imageHeight <= (thumbHeight * (1 + tolerance / 100))) {

            return false;
        }

        double imageRatio = (double) imageWidth / (double) imageHeight;
        if (thumbRatio < imageRatio) {
            thumbHeight = (int) (thumbWidth / imageRatio);
        } else {
            thumbWidth = (int) (thumbHeight * imageRatio);
        }

        ImageReadParam param = reader.getDefaultReadParam();
        param.setSourceSubsampling(3, 3, 0, 0);

        BufferedImage bi = reader.read(0, param);

        Image thumb = bi.getScaledInstance(thumbWidth, thumbHeight, Image.SCALE_SMOOTH);

        BufferedImage thumbImage = new BufferedImage(thumbWidth, thumbHeight, BufferedImage.TYPE_INT_RGB);
        Graphics2D graphics2D = thumbImage.createGraphics();
        graphics2D.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
                RenderingHints.VALUE_INTERPOLATION_BILINEAR);
        graphics2D.drawImage(thumb, 0, 0, thumbWidth, thumbHeight, null);

        FileOutputStream fileOutputStream = new FileOutputStream(thumbFile);
        ImageIO.write(thumbImage, "jpg", fileOutputStream);

        thumb.flush();
        thumbImage.flush();
        fileOutputStream.flush();
        fileOutputStream.close();
        graphics2D.dispose();

    } finally {
        if (fileis != null) {
            fileis.close();
        }
        if (imageis != null) {
            imageis.close();
        }
    }

    return true;
}

From source file:org.geoserver.wcs.GetCoverageTest.java

@Test
public void testRasterFilterGreen() throws Exception {
    String queryString = "wcs?identifier=" + getLayerId(MOSAIC) + "&request=getcoverage"
            + "&service=wcs&version=1.1.1&&format=image/tiff"
            + "&BoundingBox=0,0,1,1,urn:ogc:def:crs:EPSG:6.6:4326" + "&CQL_FILTER=location like 'green%25'";

    MockHttpServletResponse response = getAsServletResponse(queryString);

    // parse the multipart, check there are two parts
    Multipart multipart = getMultipart(response);
    assertEquals(2, multipart.getCount());
    BodyPart coveragePart = multipart.getBodyPart(1);
    assertEquals("image/tiff", coveragePart.getContentType());
    assertEquals("<theCoverage>", coveragePart.getHeader("Content-ID")[0]);

    // make sure we can read the coverage back
    ImageReader reader = ImageIO.getImageReadersByFormatName("tiff").next();
    reader.setInput(ImageIO.createImageInputStream(coveragePart.getInputStream()));
    RenderedImage image = reader.read(0);

    // check the pixel
    int[] pixel = new int[3];
    image.getData().getPixel(0, 0, pixel);
    assertEquals(0, pixel[0]);//from w w w  . j  a  v a2  s.c  om
    assertEquals(255, pixel[1]);
    assertEquals(0, pixel[2]);
}

From source file:org.geoserver.wcs.GetCoverageTest.java

@Test
public void testRasterFilterRed() throws Exception {
    String queryString = "wcs?identifier=" + getLayerId(MOSAIC) + "&request=getcoverage"
            + "&service=wcs&version=1.1.1&&format=image/tiff"
            + "&BoundingBox=0,0,1,1,urn:ogc:def:crs:EPSG:6.6:4326" + "&CQL_FILTER=location like 'red%25'";

    MockHttpServletResponse response = getAsServletResponse(queryString);

    // parse the multipart, check there are two parts
    Multipart multipart = getMultipart(response);
    assertEquals(2, multipart.getCount());
    BodyPart coveragePart = multipart.getBodyPart(1);
    assertEquals("image/tiff", coveragePart.getContentType());
    assertEquals("<theCoverage>", coveragePart.getHeader("Content-ID")[0]);

    // make sure we can read the coverage back
    ImageReader reader = ImageIO.getImageReadersByFormatName("tiff").next();
    reader.setInput(ImageIO.createImageInputStream(coveragePart.getInputStream()));
    RenderedImage image = reader.read(0);

    // check the pixel
    int[] pixel = new int[3];
    image.getData().getPixel(0, 0, pixel);
    assertEquals(255, pixel[0]);/*from   w w w .j  ava 2s .  co m*/
    assertEquals(0, pixel[1]);
    assertEquals(0, pixel[2]);
}

From source file:org.geoserver.wcs.GetCoverageTest.java

@Test
public void testReadNoGridCRS() throws Exception {
    String request = //
            "  <wcs:GetCoverage service=\"WCS\" version=\"1.1.1\" "
                    + "                   xmlns:wcs=\"http://www.opengis.net/wcs/1.1.1\" "
                    + "                   xmlns:gml=\"http://www.opengis.net/gml\""
                    + "                   xmlns:ows=\"http://www.opengis.net/ows/1.1\" >\n"
                    + "   <ows:Identifier>" + getLayerId(MockData.TASMANIA_DEM) + "   </ows:Identifier>\n"
                    + "            <wcs:DomainSubset>\n"
                    + "              <ows:BoundingBox crs=\"http://www.opengis.net/gml/srs/epsg.xml#4326\">\n"
                    + "                <ows:LowerCorner>-180.0 -90.0</ows:LowerCorner>\n"
                    + "                <ows:UpperCorner>180.0 90.0</ows:UpperCorner>\n"
                    + "              </ows:BoundingBox>\n" //
                    + "            </wcs:DomainSubset>\n" + "            <wcs:Output format=\"image/tiff\"/>\n"
                    + "          </wcs:GetCoverage>";

    MockHttpServletResponse response = postAsServletResponse("wcs", request);

    // parse the multipart, check there are two parts
    Multipart multipart = getMultipart(response);
    assertEquals(2, multipart.getCount());
    BodyPart coveragePart = multipart.getBodyPart(1);
    assertEquals("image/tiff", coveragePart.getContentType());
    assertEquals("<theCoverage>", coveragePart.getHeader("Content-ID")[0]);

    // make sure we can read the coverage back
    ImageReader reader = ImageIO.getImageReadersByFormatName("tiff").next();
    reader.setInput(ImageIO.createImageInputStream(coveragePart.getInputStream()));
    RenderedImage image = reader.read(0);
}