Example usage for javax.imageio ImageReader getWidth

List of usage examples for javax.imageio ImageReader getWidth

  1. HOME
  2. Java
  3. javax
  4. javax.imageio.*
  5. ImageReader
  6. getWidth

Introduction

In this page you can find the example usage for javax.imageio ImageReader getWidth.

Prototype

public abstract int getWidth(int imageIndex) throws IOException;

Source Link

Document

Returns the width in pixels of the given image within the input source.

Usage

From source file:at.gv.egiz.pdfas.common.utils.ImageUtils.java

public static Dimension getImageDimensions(InputStream is) throws IOException {
    ImageInputStream in = ImageIO.createImageInputStream(is);
    try {//from  www  .  java 2  s .c o  m
        final Iterator<ImageReader> readers = ImageIO.getImageReaders(in);
        if (readers.hasNext()) {
            ImageReader reader = readers.next();
            try {
                reader.setInput(in);
                return new Dimension(reader.getWidth(0), reader.getHeight(0));
            } finally {
                reader.dispose();
            }
        }
        throw new IOException("Failed to read Image file");
    } finally {
        if (in != null)
            in.close();
    }
}

From source file:com.shending.support.CompressPic.java

public static void cut(String srcFile, String dstFile, int widthRange, int heightRange) {
    int x = 0;//ww w  .  j  av a 2s.c  o  m
    int y = 0;
    try {
        ImageInputStream iis = ImageIO.createImageInputStream(new File(srcFile));
        Iterator<ImageReader> iterator = ImageIO.getImageReaders(iis);
        ImageReader reader = (ImageReader) iterator.next();
        reader.setInput(iis, true);
        ImageReadParam param = reader.getDefaultReadParam();
        int oldWidth = reader.getWidth(0);
        int oldHeight = reader.getHeight(0);
        int newWidth, newHeight;
        newWidth = oldHeight * widthRange / heightRange;
        if (newWidth < oldWidth) {
            newHeight = oldHeight;
            x = (oldWidth - newWidth) / 2;
        } else {
            newWidth = oldWidth;
            newHeight = oldWidth * heightRange / widthRange;
            y = (oldHeight - newHeight) / 2;
        }
        Rectangle rectangle = new Rectangle(x, y, newWidth, newHeight);
        param.setSourceRegion(rectangle);
        BufferedImage bi = reader.read(0, param);
        File file = new File(dstFile);
        ImageIO.write(bi, reader.getFormatName(), file);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:com.shending.support.CompressPic.java

/**
 * ?/*from  w w  w.j  a  v  a2 s  .  co m*/
 *
 * @param srcFile
 * @param dstFile
 * @param widthRange
 * @param heightRange
 */
public static void cutSquare(String srcFile, String dstFile, int widthRange, int heightRange, int width,
        int height) {
    int x = 0;
    int y = 0;
    try {
        ImageInputStream iis = ImageIO.createImageInputStream(new File(srcFile));
        Iterator<ImageReader> iterator = ImageIO.getImageReaders(iis);
        ImageReader reader = (ImageReader) iterator.next();
        reader.setInput(iis, true);
        ImageReadParam param = reader.getDefaultReadParam();
        int oldWidth = reader.getWidth(0);
        int oldHeight = reader.getHeight(0);
        int newWidth, newHeight;
        if (width <= oldWidth && height <= oldHeight) {
            newWidth = oldHeight * widthRange / heightRange;
            if (newWidth < oldWidth) {
                newHeight = oldHeight;
                x = (oldWidth - newWidth) / 2;
            } else {
                newWidth = oldWidth;
                newHeight = oldWidth * heightRange / widthRange;
                y = (oldHeight - newHeight) / 2;
            }
            Rectangle rectangle = new Rectangle(x, y, newWidth, newHeight);
            param.setSourceRegion(rectangle);
            BufferedImage bi = reader.read(0, param);
            BufferedImage tag = new BufferedImage((int) width, (int) height, BufferedImage.TYPE_INT_RGB);
            tag.getGraphics().drawImage(bi.getScaledInstance(width, height, Image.SCALE_SMOOTH), 0, 0, null);
            File file = new File(dstFile);
            ImageIO.write(tag, reader.getFormatName(), file);
        } else {
            BufferedImage bi = reader.read(0, param);
            BufferedImage tag = new BufferedImage((int) width, (int) height, BufferedImage.TYPE_INT_RGB);
            Graphics2D g2d = tag.createGraphics();
            g2d.setColor(Color.WHITE);
            g2d.fillRect(0, 0, tag.getWidth(), tag.getHeight());
            g2d.drawImage(bi.getScaledInstance(bi.getWidth(), bi.getHeight(), Image.SCALE_SMOOTH),
                    (width - bi.getWidth()) / 2, (height - bi.getHeight()) / 2, null);
            g2d.dispose();
            File file = new File(dstFile);
            ImageIO.write(tag, reader.getFormatName(), file);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:com.jaeksoft.searchlib.util.ImageUtils.java

public static Dimension getDimensions(File imageFile) throws IOException {
    FileImageInputStream fiis = null;
    try {/*from  w w  w.ja  v a2 s  .  c o m*/
        fiis = new FileImageInputStream(imageFile);
        ImageReader imageReader = ImageIO
                .getImageReadersBySuffix(FilenameUtils.getExtension(imageFile.getName())).next();
        imageReader.setInput(fiis);
        return new Dimension(imageReader.getWidth(0), imageReader.getHeight(0));
    } finally {
        IOUtils.close(fiis);
    }
}

From source file:com.moviejukebox.scanner.artwork.PosterScanner.java

/**
 * Read an URL and get the dimensions of the image using a specific image
 * type/*  w  w w  . j a  va  2 s .c  o m*/
 *
 * @param imageUrl
 * @param imageType
 * @return
 */
public static Dimension getUrlDimensions(String imageUrl, String imageType) {
    Dimension imageDimension = new Dimension(0, 0);

    @SuppressWarnings("rawtypes")
    Iterator readers = ImageIO.getImageReadersBySuffix(imageType);

    if (readers.hasNext()) {
        ImageReader reader = (ImageReader) readers.next();

        try (InputStream in = new URL(imageUrl).openStream();
                ImageInputStream iis = ImageIO.createImageInputStream(in)) {
            reader.setInput(iis, Boolean.TRUE);
            imageDimension.setSize(reader.getWidth(0), reader.getHeight(0));
        } catch (IOException ex) {
            LOG.debug("getUrlDimensions error: {}: can't open url: {}", ex.getMessage(), imageUrl);
        } finally {
            reader.dispose();
        }
    }

    return imageDimension;
}

From source file:com.occamlab.te.parsers.ImageParser.java

/**
 * Determines the width of the first image in an image file in pixels.
 * /* w  ww.j  a v a2 s. c om*/
 * @param imageLoc
 *            the string location of the image (uri syntax expected)
 * @return int the image width in pixels, or -1 if unable.
 * @author Paul Daisey added 2011-05-13 to support WMTS ETS
 */
public static int getImageWidth(String imageLoc) {

    // Get the image as an InputStream
    InputStream is = null;
    try {
        URI imageUri = new URI(imageLoc);
        URL imageUrl = imageUri.toURL();
        is = imageUrl.openStream();
    } catch (Exception e) {
        jlogger.log(Level.SEVERE, "getImageWidth", e);

        return -1;
    }
    // Determine the image width
    try {
        // Create an image input stream on the image
        ImageInputStream iis = ImageIO.createImageInputStream(is);

        // Find all image readers that recognize the image format
        Iterator iter = ImageIO.getImageReaders(iis);

        // No readers found
        if (!iter.hasNext()) {
            return -1;
        }

        // Use the first reader
        ImageReader reader = (ImageReader) iter.next();
        reader.setInput(iis, true);
        int width = reader.getWidth(0);
        iis.close();

        return width;
    } catch (IOException e) {
        jlogger.log(Level.SEVERE, "getImageWidth", e);
        // The image could not be read
    }
    return -1;
}

From source file:com.moviejukebox.scanner.artwork.PosterScanner.java

/**
 * Return the dimensions of a local image file
 *
 * @param imageFile//  w  w  w. j ava2s . co  m
 * @return Dimension
 */
public static Dimension getFileImageSize(File imageFile) {
    Dimension imageSize = new Dimension(0, 0);

    ImageReader reader = null;

    try (ImageInputStream in = ImageIO.createImageInputStream(imageFile)) {
        @SuppressWarnings("rawtypes")
        Iterator readers = ImageIO.getImageReaders(in);
        if (readers.hasNext()) {
            reader = (ImageReader) readers.next();
            if (reader != null) {
                reader.setInput(in);
                return new Dimension(reader.getWidth(0), reader.getHeight(0));
            }
        }
    } catch (IOException | CMMException ex) {
        LOG.error("Failed to read image dimensions for {}", imageFile.getName());
        LOG.error("Error: {}", ex.getMessage());
        return imageSize;
    } finally {
        if (reader != null) {
            reader.dispose();
        }
    }

    return imageSize;
}

From source file:com.moviejukebox.scanner.artwork.FanartScanner.java

public static boolean validateArtwork(IImage artworkImage, int artworkWidth, int artworkHeight,
        boolean checkAspect) {
    @SuppressWarnings("rawtypes")
    Iterator readers = ImageIO.getImageReadersBySuffix("jpeg");
    ImageReader reader = (ImageReader) readers.next();
    int urlWidth, urlHeight;
    float urlAspect;

    if (!ARTWORK_VALIDATE) {
        return true;
    }/* ww  w . ja va2 s. c om*/

    if (StringTools.isNotValidString(artworkImage.getUrl())) {
        return false;
    }

    try {
        URL url = new URL(artworkImage.getUrl());

        try (InputStream in = url.openStream(); ImageInputStream iis = ImageIO.createImageInputStream(in)) {
            reader.setInput(iis, true);
            urlWidth = reader.getWidth(0);
            urlHeight = reader.getHeight(0);
        }
    } catch (IOException error) {
        LOG.debug("ValidateFanart error: {}: can't open url", error.getMessage());
        return false; // Quit and return a false fanart
    }

    urlAspect = (float) urlWidth / (float) urlHeight;

    if (checkAspect && urlAspect < 1.0) {
        LOG.debug("ValidateFanart {} rejected: URL is portrait format", artworkImage);
        return false;
    }

    // Adjust fanart width / height by the ValidateMatch figure
    int newArtworkWidth = artworkWidth * (ARTWORK_VALIDATE_MATCH / 100);
    int newArtworkHeight = artworkHeight * (ARTWORK_VALIDATE_MATCH / 100);

    if (urlWidth < newArtworkWidth) {
        LOG.debug("{} rejected: URL width ({}) is smaller than fanart width ({})", artworkImage, urlWidth,
                newArtworkWidth);
        return false;
    }

    if (urlHeight < newArtworkHeight) {
        LOG.debug("{} rejected: URL height ({}) is smaller than fanart height ({})", artworkImage, urlHeight,
                newArtworkHeight);
        return false;
    }
    return true;
}

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

/**
 * Creates the thumbnail.//from  w  ww.  j a  v  a 2 s  .  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:com.qwazr.extractor.parser.ImageParser.java

@Override
public void parseContent(final MultivaluedMap<String, String> parameters, final Path path,
        final String extension, final String mimeType, final ParserResultBuilder resultBuilder)
        throws Exception {

    final ImagePHash imgPhash = new ImagePHash();
    try (final ImageInputStream in = ImageIO.createImageInputStream(path.toFile())) {
        final Iterator<ImageReader> readers = ImageIO.getImageReaders(in);
        if (readers.hasNext()) {
            ParserFieldsBuilder result = resultBuilder.newDocument();
            ImageReader reader = readers.next();
            resultBuilder.metas().set(MIME_TYPE, "image/" + reader.getFormatName().toLowerCase());
            try {
                reader.setInput(in);//from  ww  w.j a  v  a2s .  c om
                result.add(WIDTH, reader.getWidth(0));
                result.add(HEIGHT, reader.getHeight(0));
                result.add(FORMAT, reader.getFormatName());
                result.add(PHASH, imgPhash.getHash(reader.read(0)));
                IIOMetadata metadata = reader.getImageMetadata(0);
                if (metadata != null) {
                    String[] names = metadata.getMetadataFormatNames();
                    if (names != null)
                        for (String name : names)
                            browseNodes("META", metadata.getAsTree(name), result);
                }
            } finally {
                reader.dispose();
            }
        }
    }
}