Example usage for java.awt RenderingHints VALUE_INTERPOLATION_BILINEAR

List of usage examples for java.awt RenderingHints VALUE_INTERPOLATION_BILINEAR

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Introduction

In this page you can find the example usage for java.awt RenderingHints VALUE_INTERPOLATION_BILINEAR.

Prototype

Object VALUE_INTERPOLATION_BILINEAR

To view the source code for java.awt RenderingHints VALUE_INTERPOLATION_BILINEAR.

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Document

Interpolation hint value -- the color samples of the 4 nearest neighboring integer coordinate samples in the image are interpolated linearly to produce a color sample.

Usage

From source file:com.fusesource.forge.jmstest.persistence.rrd.RrdGraphPostProcessor.java

private void createThumbnail(BufferedImage image, String name, int thumbWidth, int thumbHeight) {

    double thumbRatio = (double) thumbWidth / (double) thumbHeight;
    int imageWidth = image.getWidth(null);
    int imageHeight = image.getHeight(null);
    double imageRatio = (double) imageWidth / (double) imageHeight;

    if (thumbRatio < imageRatio) {
        thumbHeight = (int) (thumbWidth / imageRatio);
    } else {/*from w  ww .j av  a  2  s . co  m*/
        thumbWidth = (int) (thumbHeight * imageRatio);
    }

    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(image, 0, 0, thumbWidth, thumbHeight, null);

    File thumbFile = new File(getWorkDir().getAbsolutePath() + "/" + name + "-thumb.png");

    try {
        ImageIO.write(thumbImage, "PNG", thumbFile);
    } catch (IOException ioe) {
        log().error("Error creating thumbnail for: " + name);
    }
}

From source file:kz.supershiny.core.services.ImageService.java

/**
 * Creates thumb for image.//  www . ja va2s .c om
 *
 * @param originalData original image in byte array
 * @param type original - 0, large - 1, small - 2
 * @return resized image in byte array
 */
public static byte[] resizeImage(byte[] originalData, ImageSize type) {
    //if original flag, then return original
    if (type.equals(ImageSize.ORIGINAL)) {
        return originalData;
    }

    BufferedImage originalImage = null;
    BufferedImage resizedImage = null;
    byte[] result = null;
    //convert bytes to BufferedImage
    try (InputStream in = new ByteArrayInputStream(originalData)) {
        originalImage = ImageIO.read(in);
    } catch (IOException ex) {
        LOG.error("Cannot convert byte array to BufferedImage!", ex);
        return null;
    }
    //get original size
    int scaledHeight = originalImage.getHeight();
    int scaledWidth = originalImage.getWidth();

    switch (type) {
    case LARGE:
        scaledWidth = LARGE_WIDTH;
        scaledHeight = LARGE_HEIGHT;
        break;
    case SMALL:
        scaledWidth = SMALL_WIDTH;
        scaledHeight = SMALL_HEIGHT;
        break;
    default:
        break;
    }
    //calculate aspect ratio
    float ratio = 1.0F * originalImage.getWidth() / originalImage.getHeight();
    if (ratio > 1.0F) {
        scaledHeight = (int) (scaledHeight / ratio);
    } else {
        scaledWidth = (int) (scaledWidth * ratio);
    }
    //resize with hints
    resizedImage = new BufferedImage(scaledWidth, scaledHeight,
            originalImage.getType() == 0 ? BufferedImage.TYPE_INT_ARGB : originalImage.getType());

    Graphics2D g = resizedImage.createGraphics();
    g.drawImage(originalImage, 0, 0, scaledWidth, scaledHeight, null);
    g.dispose();
    g.setComposite(AlphaComposite.Src);

    g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
    g.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    //convert BufferedImage to bytes
    try (ByteArrayOutputStream baos = new ByteArrayOutputStream()) {
        ImageIO.write(resizedImage, "png", baos);
        baos.flush();
        result = baos.toByteArray();
    } catch (IOException ex) {
        LOG.error("Cannot convert BufferedImage to byte array!", ex);
    }
    return result;
}

From source file:Sampler.java

private void createTransformations() {
    AffineTransform at;//w  w  w.  jav a 2 s.c o m
    at = AffineTransform.getRotateInstance(Math.PI / 6, 0, 285);
    mOps.put("Rotate nearest neighbor", new AffineTransformOp(at, null));

    RenderingHints rh = new RenderingHints(RenderingHints.KEY_INTERPOLATION,
            RenderingHints.VALUE_INTERPOLATION_BILINEAR);
    mOps.put("Rotate bilinear", new AffineTransformOp(at, rh));

    at = AffineTransform.getScaleInstance(.5, .5);
    mOps.put("Scale .5, .5", new AffineTransformOp(at, null));

    at = AffineTransform.getRotateInstance(Math.PI / 6);
    mOps.put("Rotate bilinear (origin)", new AffineTransformOp(at, rh));
}

From source file:ar.com.zauber.common.image.impl.AbstractImage.java

/**
 * Creates a thumbnail// w w  w.  java  2 s .c  o m
 * 
 * @param is data source
 * @param os data source
 * @throws IOException if there is a problem reading is
 */
public static void createThumbnail(final InputStream is, final OutputStream os, final int target)
        throws IOException {
    final float compression = 0.85F;
    ImageWriter writer = null;
    MemoryCacheImageOutputStream mos = null;
    Graphics2D graphics2D = null;
    try {
        final BufferedImage bi = ImageIO.read(is);
        final Iterator<ImageWriter> iter = ImageIO.getImageWritersByFormatName("JPG");
        if (!iter.hasNext()) {
            throw new IllegalStateException("can't find JPG subsystem");
        }

        int w = bi.getWidth(), h = bi.getHeight();
        if (w < target && h < target) {
            // nothing to recalculate, ya es chiquita.
        } else {
            if (w > h) {
                h = target * bi.getHeight() / bi.getWidth();
                w = target;
            } else {
                w = target * bi.getWidth() / bi.getHeight();
                h = target;
            }
        }
        // draw original image to thumbnail image object and
        // scale it to the new size on-the-fly
        final BufferedImage thumbImage = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
        graphics2D = thumbImage.createGraphics();
        graphics2D.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
                RenderingHints.VALUE_INTERPOLATION_BILINEAR);
        graphics2D.drawImage(bi, 0, 0, w, h, null);

        writer = (ImageWriter) iter.next();
        final ImageWriteParam iwp = writer.getDefaultWriteParam();
        iwp.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
        iwp.setCompressionQuality(compression);
        mos = new MemoryCacheImageOutputStream(os);
        writer.setOutput(mos);
        writer.write(null, new IIOImage(thumbImage, null, null), iwp);
    } finally {
        if (writer != null) {
            writer.dispose();
        }
        if (mos != null) {
            mos.close();
        }
        if (graphics2D != null) {
            graphics2D.dispose();
        }
        is.close();
        os.close();
    }
}

From source file:game.com.HandleUploadGameThumbServlet.java

public static BufferedImage resizeImage(final Image image, int width, int height) {
    final BufferedImage bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
    final Graphics2D graphics2D = bufferedImage.createGraphics();
    graphics2D.setComposite(AlphaComposite.Src);
    //below three lines are for RenderingHints for better image quality at cost of higher processing time
    graphics2D.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
    graphics2D.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    graphics2D.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    graphics2D.drawImage(image, 0, 0, width, height, null);
    graphics2D.dispose();//from  w w w.  j a v  a 2 s  .co  m
    return bufferedImage;
}

From source file:bjerne.gallery.service.impl.ImageResizeServiceImpl.java

@Override
public void resizeImage(File origImage, File newImage, int width, int height) throws IOException {
    LOG.debug("Entering resizeImage(origImage={}, width={}, height={})", origImage, width, height);
    long startTime = System.currentTimeMillis();
    InputStream is = new BufferedInputStream(new FileInputStream(origImage));
    BufferedImage i = ImageIO.read(is);
    IOUtils.closeQuietly(is);/*from   ww  w. j  av  a 2 s  . c o m*/
    BufferedImage scaledImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
    int origWidth = i.getWidth();
    int origHeight = i.getHeight();
    LOG.debug("Original size of image - width: {}, height={}", origWidth, height);
    float widthFactor = ((float) origWidth) / ((float) width);
    float heightFactor = ((float) origHeight) / ((float) height);
    float maxFactor = Math.max(widthFactor, heightFactor);
    int newHeight, newWidth;
    if (maxFactor > 1) {
        newHeight = (int) (((float) origHeight) / maxFactor);
        newWidth = (int) (((float) origWidth) / maxFactor);
    } else {
        newHeight = origHeight;
        newWidth = origWidth;
    }
    LOG.debug("Size of scaled image will be: width={}, height={}", newWidth, newHeight);
    int startX = Math.max((width - newWidth) / 2, 0);
    int startY = Math.max((height - newHeight) / 2, 0);
    Graphics2D scaledGraphics = scaledImage.createGraphics();
    scaledGraphics.setColor(backgroundColor);
    scaledGraphics.fillRect(0, 0, width, height);
    scaledGraphics.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
            RenderingHints.VALUE_INTERPOLATION_BILINEAR);
    scaledGraphics.drawImage(i, startX, startY, newWidth, newHeight, null);
    OutputStream resultImageOutputStream = new BufferedOutputStream(FileUtils.openOutputStream(newImage));
    String extension = FilenameUtils.getExtension(origImage.getName());
    ImageIO.write(scaledImage, extension, resultImageOutputStream);
    IOUtils.closeQuietly(resultImageOutputStream);
    long duration = System.currentTimeMillis() - startTime;
    LOG.debug("Time in milliseconds to scale {}: {}", newImage.toString(), duration);
}

From source file:de.mpg.imeji.logic.storage.util.ImageUtils.java

/**
 * Scale a {@link BufferedImage} to new size. Is faster than the basic {@link ImageUtils}.scaleImage method, has the
 * same quality. If it is a thumbnail, cut the images to fit into the raster
 * /*  w w w .j a v  a 2  s.  c  o  m*/
 * @param image original image
 * @param size the size to be resized to
 * @param resolution the type of the image. Might be thumb or web
 * @return the resized images
 * @throws Exception
 */
public static BufferedImage scaleImageFast(BufferedImage image, int size, FileResolution resolution)
        throws Exception {
    int width = image.getWidth(null);
    int height = image.getHeight(null);
    BufferedImage newImg = null;
    Image rescaledImage;
    if (width > height) {
        if (FileResolution.THUMBNAIL.equals(resolution)) {
            newImg = new BufferedImage(height, height, BufferedImage.TYPE_INT_RGB);
            Graphics g1 = newImg.createGraphics();
            g1.drawImage(image, (height - width) / 2, 0, null);
            if (height > size)
                rescaledImage = getScaledInstance(newImg, size, size,
                        RenderingHints.VALUE_INTERPOLATION_BILINEAR, RESCALE_HIGH_QUALITY);
            else
                rescaledImage = newImg;
        } else
            rescaledImage = getScaledInstance(image, size, height * size / width,
                    RenderingHints.VALUE_INTERPOLATION_BILINEAR, RESCALE_HIGH_QUALITY);
    } else {
        if (FileResolution.THUMBNAIL.equals(resolution)) {
            newImg = new BufferedImage(width, width, BufferedImage.TYPE_INT_RGB);
            Graphics g1 = newImg.createGraphics();
            g1.drawImage(image, 0, (width - height) / 2, null);
            if (width > size)
                rescaledImage = getScaledInstance(newImg, size, size,
                        RenderingHints.VALUE_INTERPOLATION_BILINEAR, RESCALE_HIGH_QUALITY);
            else
                rescaledImage = newImg;
        } else
            rescaledImage = getScaledInstance(image, width * size / height, size,
                    RenderingHints.VALUE_INTERPOLATION_BILINEAR, RESCALE_HIGH_QUALITY);
    }
    BufferedImage rescaledBufferedImage = new BufferedImage(rescaledImage.getWidth(null),
            rescaledImage.getHeight(null), BufferedImage.TYPE_INT_RGB);
    Graphics g2 = rescaledBufferedImage.getGraphics();
    g2.drawImage(rescaledImage, 0, 0, null);
    return rescaledBufferedImage;
}

From source file:com.gst.infrastructure.documentmanagement.data.ImageData.java

public void resizeImage(InputStream in, OutputStream out, int maxWidth, int maxHeight) throws IOException {

    BufferedImage src = ImageIO.read(in);
    if (src.getWidth() <= maxWidth && src.getHeight() <= maxHeight) {
        out.write(getContent());/*  w  w  w .j  av  a2 s. co  m*/
        return;
    }
    float widthRatio = (float) src.getWidth() / maxWidth;
    float heightRatio = (float) src.getHeight() / maxHeight;
    float scaleRatio = widthRatio > heightRatio ? widthRatio : heightRatio;

    // TODO(lindahl): Improve compressed image quality (perhaps quality
    // ratio)

    int newWidth = (int) (src.getWidth() / scaleRatio);
    int newHeight = (int) (src.getHeight() / scaleRatio);
    int colorModel = fileExtension == ContentRepositoryUtils.IMAGE_FILE_EXTENSION.JPEG
            ? BufferedImage.TYPE_INT_RGB
            : BufferedImage.TYPE_INT_ARGB;
    BufferedImage target = new BufferedImage(newWidth, newHeight, colorModel);
    Graphics2D g = target.createGraphics();
    g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
    g.drawImage(src, 0, 0, newWidth, newHeight, Color.BLACK, null);
    g.dispose();
    ImageIO.write(target, fileExtension != null ? fileExtension.getValueWithoutDot() : "jpeg", out);
}

From source file:net.sf.maltcms.common.charts.api.XYChartBuilder.java

/**
 *
 *///  w w w. j a  v  a  2 s . c om
public XYChartBuilder() {
    plot = new XYPlot(dataset, domainAxis, rangeAxis, renderer);
    chart = new JFreeChart(plot);
    renderingHints = new RenderingHints(null);
    renderingHints.put(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_GASP);
    renderingHints.put(RenderingHints.KEY_TEXT_LCD_CONTRAST, 100);
    renderingHints.put(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    renderingHints.put(RenderingHints.KEY_COLOR_RENDERING, RenderingHints.VALUE_COLOR_RENDER_QUALITY);
    renderingHints.put(RenderingHints.KEY_DITHERING, RenderingHints.VALUE_DITHER_DISABLE);
    renderingHints.put(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON);
    renderingHints.put(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
    renderingHints.put(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    renderingHints.put(RenderingHints.KEY_STROKE_CONTROL, RenderingHints.VALUE_STROKE_PURE);
    renderingHints.put(RenderingHints.KEY_ALPHA_INTERPOLATION,
            RenderingHints.VALUE_ALPHA_INTERPOLATION_QUALITY);
}

From source file:net.mindengine.oculus.frontend.web.controllers.project.ProjectEditController.java

private static BufferedImage resize(BufferedImage image, int width, int height) {
    BufferedImage resizedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g = resizedImage.createGraphics();
    g.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);

    g.drawImage(image, 0, 0, width, height, null);
    g.dispose();/*from  www. ja  v a2  s  .  c om*/
    return resizedImage;
}