Example usage for java.awt.image BufferedImage getWidth

List of usage examples for java.awt.image BufferedImage getWidth

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Introduction

In this page you can find the example usage for java.awt.image BufferedImage getWidth.

Prototype

public int getWidth()

Source Link

Document

Returns the width of the BufferedImage .

Usage

From source file:com.simiacryptus.mindseye.applications.ArtistryUtil.java

/**
 * Paint circles./* ww w.  java2  s .  c o  m*/
 *
 * @param canvas the canvas
 * @param scale  the scale
 */
public static void paint_Circles(final Tensor canvas, final int scale) {
    BufferedImage originalImage = canvas.toImage();
    BufferedImage newImage = new BufferedImage(originalImage.getWidth(), originalImage.getHeight(),
            BufferedImage.TYPE_INT_ARGB);
    Graphics2D graphics = (Graphics2D) newImage.getGraphics();
    IntStream.range(0, 10000).forEach(i -> {
        Random random = new Random();
        int positionX = random.nextInt(originalImage.getWidth());
        int positionY = random.nextInt(originalImage.getHeight());
        int width = 1 + random.nextInt(2 * scale);
        int height = 1 + random.nextInt(2 * scale);
        DoubleStatistics[] stats = { new DoubleStatistics(), new DoubleStatistics(), new DoubleStatistics() };
        canvas.coordStream(false).filter(c -> {
            int[] coords = c.getCoords();
            int x = coords[0];
            int y = coords[1];
            double relX = Math.pow(1 - 2 * ((double) (x - positionX) / width), 2);
            double relY = Math.pow(1 - 2 * ((double) (y - positionY) / height), 2);
            return relX + relY < 1.0;
        }).forEach(c -> stats[c.getCoords()[2]].accept(canvas.get(c)));
        graphics.setStroke(new Stroke() {
            @Override
            public Shape createStrokedShape(final Shape p) {
                return null;
            }
        });
        graphics.setColor(new Color((int) stats[0].getAverage(), (int) stats[1].getAverage(),
                (int) stats[2].getAverage()));
        graphics.fillOval(positionX, positionY, width, height);
    });
    canvas.set(Tensor.fromRGB(newImage));
}

From source file:com.sun.socialsite.util.ImageUtil.java

/**
 * Convenience method that returns a scaled instance of the
 * provided {@code BufferedImage}./* ww w.j  a  va2 s .com*/
 *
 * NOTE: Adapted from code at
 * {@link http://today.java.net/pub/a/today/2007/04/03/perils-of-image-getscaledinstance.html}.
 *
 * @param img the original image to be scaled
 * @param targetWidth the desired width of the scaled instance,
 *    in pixels
 * @param targetHeight the desired height of the scaled instance,
 *    in pixels
 * @param hint one of the rendering hints that corresponds to
 *    {@code RenderingHints.KEY_INTERPOLATION} (e.g.
 *    {@code RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR},
 *    {@code RenderingHints.VALUE_INTERPOLATION_BILINEAR},
 *    {@code RenderingHints.VALUE_INTERPOLATION_BICUBIC})
 * @param higherQuality if true, this method will use a multi-step
 *    scaling technique that provides higher quality than the usual
 *    one-step technique (only useful in downscaling cases, where
 *    {@code targetWidth} or {@code targetHeight} is
 *    smaller than the original dimensions, and generally only when
 *    the {@code BILINEAR} hint is specified)
 * @return a scaled version of the original {@code BufferedImage}
 */
private static BufferedImage getScaledInstance(BufferedImage img, int targetWidth, int targetHeight,
        Object hint, boolean higherQuality) {
    int type = BufferedImage.TYPE_INT_ARGB;
    BufferedImage ret = (BufferedImage) img;
    int w, h;
    if (higherQuality) {
        // Use multi-step technique: start with original size, then
        // scale down in multiple passes with drawImage()
        // until the target size is reached
        w = img.getWidth();
        h = img.getHeight();
    } else {
        // Use one-step technique: scale directly from original
        // size to target size with a single drawImage() call
        w = targetWidth;
        h = targetHeight;
    }

    do {
        if (higherQuality && w > targetWidth) {
            w /= 2;
            if (w < targetWidth) {
                w = targetWidth;
            }
        }

        if (higherQuality && h > targetHeight) {
            h /= 2;
            if (h < targetHeight) {
                h = targetHeight;
            }
        }

        BufferedImage tmp = new BufferedImage(w, h, type);
        Graphics2D g2 = tmp.createGraphics();
        g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, hint);
        g2.drawImage(ret, 0, 0, w, h, null);
        g2.dispose();

        ret = tmp;
    } while (w > targetWidth || h > targetHeight);

    return ret;
}

From source file:com.t3.image.ImageUtil.java

public static void clearImage(BufferedImage image) {

    if (image == null) {
        return;//from  w ww. ja  v a  2s .c o m
    }

    Graphics2D g = null;
    try {

        g = (Graphics2D) image.getGraphics();
        Composite oldComposite = g.getComposite();

        g.setComposite(AlphaComposite.Clear);

        g.fillRect(0, 0, image.getWidth(), image.getHeight());

        g.setComposite(oldComposite);
    } finally {
        if (g != null) {
            g.dispose();
        }
    }
}

From source file:fr.gael.dhus.datastore.processing.impl.ProcessingUtils.java

/**
 * Cut the quicklook that have a big width/height ratio.
 * Each sub-part is dispatched on multiple bands.
 *
 * @param quick_look the quick_look to be cut
 * @param max_ratio the maximum ratio between quick_look width and height.
 * @param margin the margin between each band. default 5.
 *//*  w w w  .  j  a v a 2 s.  c o  m*/
public static RenderedImage cutQuickLook(RenderedImage input_image, double max_ratio, int margin) {
    ColorModel color_model = input_image.getColorModel();
    if ((color_model == null) && (input_image.getSampleModel() != null)) {
        color_model = ColorRenderer.createColorModel(input_image.getSampleModel());
    }

    BufferedImage quick_look;
    try {
        quick_look = PlanarImage.wrapRenderedImage(input_image).getAsBufferedImage(
                new Rectangle(input_image.getWidth(), input_image.getHeight()), color_model);
    } catch (Exception e) {
        logger.error("Problem getting buffered image.", e);
        throw new IllegalArgumentException("Problem getting buffered image", e);
    }

    if ((quick_look != null) && ((quick_look.getWidth() > 0) && (quick_look.getHeight() > 0))) {
        //Compute width/height ratio
        int ql_width = quick_look.getWidth();
        int ql_height = quick_look.getHeight();
        int ratio = (int) Math.sqrt(Math.max(ql_width, ql_height) / Math.min(ql_width, ql_height));

        //Check if the quicklook has a strong width/height ratio
        if ((ratio < max_ratio) || (ratio <= 1))
            return PlanarImage.wrapRenderedImage(quick_look);

        /**
         * Cut the wider side (width or height) into "ratio" bands.
         * Ex: If height = 3 * width then we cut 3 bands along columns
         *     So height' = height / 3   (extract 1 band / 3 from height)
         *        width'  = width  * 3   (dispatch 3 bands along lines)
         */
        int width = ql_width; //width of the bands
        int height = ql_height; //height of the bands

        if (ql_width < ql_height) //cut along height
        {
            width = (ql_width + margin) * ratio;
            height = ql_height / ratio;
        } else //cut along width
        {
            width = ql_width / ratio;
            height = (ql_height + margin) * ratio;
        }

        //Dispatch the sub-parts
        BufferedImage quick_look_cut = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
        Graphics2D g2 = quick_look_cut.createGraphics();

        for (int k = 0; k < ratio; k++) {
            BufferedImage ql_band = null;
            //Dispatch on columns
            if (ql_width < ql_height) {
                ql_band = quick_look.getSubimage(0, (k * ql_height) / ratio, ql_width, ql_height / ratio);
                g2.drawImage(ql_band, null, k * (ql_width + margin), 0);
            }
            //Dispatch on lines
            else {
                ql_band = quick_look.getSubimage((k * ql_width) / ratio, 0, ql_width / ratio, ql_height);
                g2.drawImage(ql_band, null, 0, k * (ql_height + margin));
            }
        } //for each band

        g2.dispose();
        return PlanarImage.wrapRenderedImage(quick_look_cut);
    }
    return PlanarImage.wrapRenderedImage(quick_look);
}

From source file:ImageUtils.java

/**
 * Creates a <code>BufferedImage</code> from an <code>Image</code>. This method can
 * function on a completely headless system. This especially includes Linux and Unix systems
 * that do not have the X11 libraries installed, which are required for the AWT subsystem to
 * operate. The resulting image will be smoothly scaled using bilinear filtering.
 * //from   ww w .jav a  2 s .  c o  m
 * @param source The image to convert
 * @param w The desired image width
 * @param h The desired image height
 * @return The converted image
 * @param type  int
 */
public static BufferedImage createHeadlessSmoothBufferedImage(BufferedImage source, int type, int width,
        int height) {
    if (type == ImageUtils.IMAGE_PNG && hasAlpha(source)) {
        type = BufferedImage.TYPE_INT_ARGB;
    } else {
        type = BufferedImage.TYPE_INT_RGB;
    }

    BufferedImage dest = new BufferedImage(width, height, type);

    int sourcex;
    int sourcey;

    double scalex = (double) width / source.getWidth();
    double scaley = (double) height / source.getHeight();

    int x1;
    int y1;

    double xdiff;
    double ydiff;

    int rgb;
    int rgb1;
    int rgb2;

    for (int y = 0; y < height; y++) {
        sourcey = y * source.getHeight() / dest.getHeight();
        ydiff = scale(y, scaley) - sourcey;

        for (int x = 0; x < width; x++) {
            sourcex = x * source.getWidth() / dest.getWidth();
            xdiff = scale(x, scalex) - sourcex;

            x1 = Math.min(source.getWidth() - 1, sourcex + 1);
            y1 = Math.min(source.getHeight() - 1, sourcey + 1);

            rgb1 = getRGBInterpolation(source.getRGB(sourcex, sourcey), source.getRGB(x1, sourcey), xdiff);
            rgb2 = getRGBInterpolation(source.getRGB(sourcex, y1), source.getRGB(x1, y1), xdiff);

            rgb = getRGBInterpolation(rgb1, rgb2, ydiff);

            dest.setRGB(x, y, rgb);
        }
    }

    return dest;
}

From source file:com.simiacryptus.mindseye.applications.ArtistryUtil.java

/**
 * Paint low res.//from w ww  .  j  av a  2  s  . c o  m
 *
 * @param canvas the canvas
 * @param scale  the scale
 */
public static void paint_LowRes(final Tensor canvas, final int scale) {
    BufferedImage originalImage = canvas.toImage();
    canvas.set(Tensor
            .fromRGB(TestUtil.resize(TestUtil.resize(originalImage, originalImage.getWidth() / scale, true),
                    originalImage.getWidth(), originalImage.getHeight())));
}

From source file:ImageUtils.java

/**
 * Creates a <code>BufferedImage</code> from an <code>Image</code>. This method can
 * function on a completely headless system. This especially includes Linux and Unix systems
 * that do not have the X11 libraries installed, which are required for the AWT subsystem to
 * operate. This method uses nearest neighbor approximation, so it's quite fast. Unfortunately,
 * the result is nowhere near as nice looking as the createHeadlessSmoothBufferedImage method.
 * //  ww w .j ava2  s  .co m
 * @param image  The image to convert
 * @param w The desired image width
 * @param h The desired image height
 * @return The converted image
 * @param type int
 */
public static BufferedImage createHeadlessBufferedImage(BufferedImage image, int type, int width, int height) {
    if (type == ImageUtils.IMAGE_PNG && hasAlpha(image)) {
        type = BufferedImage.TYPE_INT_ARGB;
    } else {
        type = BufferedImage.TYPE_INT_RGB;
    }

    BufferedImage bi = new BufferedImage(width, height, type);

    for (int y = 0; y < height; y++) {
        for (int x = 0; x < width; x++) {
            bi.setRGB(x, y, image.getRGB(x * image.getWidth() / width, y * image.getHeight() / height));
        }
    }

    return bi;
}

From source file:net.cloudkit.relaxation.VerifyImage.java

public static List<BufferedImage> splitImage(BufferedImage img) throws Exception {
    final List<BufferedImage> subImgs = new ArrayList<BufferedImage>();
    final int width = img.getWidth();
    final int height = img.getHeight();
    final List<Integer> weightList = new ArrayList<Integer>();
    for (int x = 0; x < width; ++x) {
        int count = 0;
        for (int y = 0; y < height; ++y) {
            if (isWhite(img.getRGB(x, y), whiteThreshold) == 0) {
                count++;//from   w  w w .  j  a  va2s . c  o m
            }
        }
        weightList.add(count);
    }
    for (int i = 0; i < weightList.size(); i++) {
        int length = 0;
        while (i < weightList.size() && weightList.get(i) > 0) {
            i++;
            length++;
        }
        if (length > 18) {
            subImgs.add(removeBlank(img.getSubimage(i - length, 0, length / 2, height), whiteThreshold, 0));
            subImgs.add(removeBlank(img.getSubimage(i - length / 2, 0, length / 2, height), whiteThreshold, 0));
        } else if (length > 5) {
            subImgs.add(removeBlank(img.getSubimage(i - length, 0, length, height), whiteThreshold, 0));
        }
    }

    return subImgs;
}

From source file:it.units.malelab.ege.util.DUMapper.java

private static void modifyMap(String fileName, float bins) throws IOException {
    Color[][] colorMap = new Color[3][];
    colorMap[0] = new Color[] { fromCode("000000"), fromCode("b36600"), fromCode("f3b300") };
    colorMap[1] = new Color[] { fromCode("376387"), fromCode("b3b3b3"), fromCode("f3e6b3") };
    colorMap[2] = new Color[] { fromCode("509dc2"), fromCode("b4d3e1"), fromCode("f3f3f3") };
    BufferedImage inImage = ImageIO.read(new File(fileName));
    BufferedImage outRGDImage = new BufferedImage(inImage.getWidth(), inImage.getHeight(),
            BufferedImage.TYPE_INT_ARGB);
    BufferedImage outCMImage = new BufferedImage(inImage.getWidth(), inImage.getHeight(),
            BufferedImage.TYPE_INT_ARGB);
    for (int x = 0; x < inImage.getWidth(); x++) {
        for (int y = 0; y < inImage.getHeight(); y++) {
            Color inColor = new Color(inImage.getRGB(x, y));
            Color outColor = new Color(
                    Math.min((float) Math.floor((float) inColor.getRed() / 255f * bins) / (bins - 1), 1f),
                    Math.min((float) Math.floor((float) inColor.getGreen() / 255f * bins) / (bins - 1), 1f), 0);
            outRGDImage.setRGB(x, y, outColor.getRGB());
            int cmRIndex = (int) Math.min((int) Math.floor((float) inColor.getRed() / 255f * 3), 2);
            int cmGIndex = (int) Math.min((int) Math.floor((float) inColor.getGreen() / 255f * 3), 2);
            outColor = colorMap[cmRIndex][cmGIndex];
            outCMImage.setRGB(x, y, outColor.getRGB());
        }/* w  w w .  jav a2 s.  c  o m*/
    }
    ImageIO.write(outRGDImage, "PNG",
            new File(fileName.replace(".png", String.format(".rgbdisc%d.png", (int) bins))));
    ImageIO.write(outCMImage, "PNG", new File(fileName.replace(".png", ".cm.png")));
}

From source file:com.aimluck.eip.fileupload.util.FileuploadUtils.java

/**
 * ?????????/* w w  w. j a va 2 s .c  o  m*/
 * 
 * @param imgfile
 * @param dim
 * @return
 */
public static BufferedImage shrinkImage(BufferedImage imgfile, int width, int height) {

    int iwidth = imgfile.getWidth();
    int iheight = imgfile.getHeight();

    double ratio = Math.min((double) width / (double) iwidth, (double) height / (double) iheight);
    int shrinkedWidth = (int) (iwidth * ratio);
    int shrinkedHeight = (int) (iheight * ratio);

    // ??
    Image targetImage = imgfile.getScaledInstance(shrinkedWidth, shrinkedHeight, Image.SCALE_AREA_AVERAGING);
    BufferedImage tmpImage = new BufferedImage(targetImage.getWidth(null), targetImage.getHeight(null),
            BufferedImage.TYPE_3BYTE_BGR);
    Graphics2D g = tmpImage.createGraphics();
    g.setColor(Color.WHITE);
    g.fillRect(0, 0, shrinkedWidth, shrinkedHeight);
    g.drawImage(targetImage, 0, 0, null);

    return tmpImage;
}