Example usage for java.awt Graphics2D setRenderingHint

List of usage examples for java.awt Graphics2D setRenderingHint

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Introduction

In this page you can find the example usage for java.awt Graphics2D setRenderingHint.

Prototype

public abstract void setRenderingHint(Key hintKey, Object hintValue);

Source Link

Document

Sets the value of a single preference for the rendering algorithms.

Usage

From source file:Main.java

/**
 * Resizes an image using trilinear filtering.
 * @param source   the source image.//w w  w.  ja va2s .c om
 * @param newWidth   the new image width.
 * @param newHeight   the new image height.
 */
public static BufferedImage performResizeTrilinear(BufferedImage source, int newWidth, int newHeight) {
    BufferedImage out = new BufferedImage(newWidth, newHeight, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2d = out.createGraphics();
    g2d.setComposite(AlphaComposite.Src);
    g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
    g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    g2d.drawImage(source, 0, 0, newWidth, newHeight, null);
    g2d.dispose();
    return out;
}

From source file:Main.java

/**
 * Resizes an image using bilinear filtering.
 * @param source   the source image.//  ww w .j  a  v a  2 s.  c o  m
 * @param newWidth   the new image width.
 * @param newHeight   the new image height.
 */
public static BufferedImage performResizeBilinear(BufferedImage source, int newWidth, int newHeight) {
    BufferedImage out = new BufferedImage(newWidth, newHeight, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2d = out.createGraphics();
    g2d.setComposite(AlphaComposite.Src);
    g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);
    g2d.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    g2d.drawImage(source, 0, 0, newWidth, newHeight, null);
    g2d.dispose();
    return out;
}

From source file:Main.java

/**
 * Tell the G to use anti aliased drawing and text
 * @return old AA//from   w  w  w  .ja  va 2 s  .co  m
 */
public static Object useAntiAliasing(Graphics2D g) {
    Object oldAA = g.getRenderingHint(RenderingHints.KEY_ANTIALIASING);
    g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    return oldAA;
}

From source file:Main.java

public static BufferedImage getScaledInstance(BufferedImage img, int targetWidth, int targetHeight, Object hint,
        boolean higherQuality) {
    int type = (img.getTransparency() == Transparency.OPAQUE) ? BufferedImage.TYPE_INT_RGB
            : BufferedImage.TYPE_INT_ARGB;
    BufferedImage ret = img;/*  ww  w . j a v a2 s  .  c o  m*/
    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:Main.java

private static BufferedImage renderRotatedObject(Object src, double angle, int width, int height, double tx,
        double ty) {
    BufferedImage dest = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);

    Graphics2D g2d = (Graphics2D) dest.getGraphics();
    g2d.setColor(Color.black);/*from   ww  w  . j av  a 2  s  .c  o m*/
    g2d.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
    g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

    AffineTransform at = AffineTransform.getRotateInstance(angle);
    at.translate(tx, ty);
    g2d.setTransform(at);

    if (src instanceof TextLayout) {
        TextLayout tl = (TextLayout) src;
        tl.draw(g2d, 0, tl.getAscent());
    } else if (src instanceof Image) {
        g2d.drawImage((Image) src, 0, 0, null);
    }
    g2d.dispose();

    return dest;
}

From source file:Main.java

public static void drawRoundBorder(Graphics g, Color c, int x, int y, int w, int h, int r) {
    Graphics2D g2D = (Graphics2D) g;
    Object savedRederingHint = g2D.getRenderingHint(RenderingHints.KEY_ANTIALIASING);
    g2D.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    g2D.setColor(c);//  w  ww . j av  a 2 s . co m
    g2D.drawRoundRect(x, y, w - 1, h - 1, r, r);
    g2D.setRenderingHint(RenderingHints.KEY_ANTIALIASING, savedRederingHint);
}

From source file:com.fun.util.TesseractUtil.java

/**
 * /*  w w  w.  j  a  v a2  s.c o m*/
 *
 * @param imageFile
 * @param times
 * @param targetFile
 * @throws IOException
 */
private static void scaled(File imageFile, int times, File targetFile) throws IOException {
    BufferedImage image = ImageIO.read(imageFile);
    int targetWidth = image.getWidth() * times;
    int targetHeight = image.getHeight() * times;
    int type = (image.getTransparency() == Transparency.OPAQUE) ? BufferedImage.TYPE_INT_RGB
            : BufferedImage.TYPE_INT_ARGB;
    BufferedImage tmp = new BufferedImage(targetWidth, targetHeight, type);
    Graphics2D g2 = tmp.createGraphics();
    g2.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
    g2.drawImage(image, 0, 0, targetWidth, targetHeight, null);
    g2.dispose();
    ImageIO.write(tmp, "png", targetFile);
}

From source file:Main.java

private static BufferedImage resizeImageWithHint(BufferedImage originalImage, int type) {
    int IMG_WIDTH = 512;
    int IMG_CLAHEIGHT = 512;
    BufferedImage resizedImage = new BufferedImage(IMG_WIDTH, IMG_CLAHEIGHT, type);
    Graphics2D g = resizedImage.createGraphics();
    g.drawImage(originalImage, 0, 0, IMG_WIDTH, IMG_CLAHEIGHT, null);
    g.dispose();//www  . ja v a2 s. c o m
    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);

    return resizedImage;
}

From source file:net.dv8tion.jda.utils.AvatarUtil.java

private static BufferedImage resize(BufferedImage originalImage) {
    BufferedImage resizedImage = new BufferedImage(SIZE, SIZE, BufferedImage.TYPE_INT_RGB);
    Graphics2D g = resizedImage.createGraphics();

    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);

    g.drawImage(originalImage, 0, 0, SIZE, SIZE, Color.white, null);

    g.dispose();/*from  ww  w.j av a 2  s. co m*/

    return resizedImage;
}

From source file:Main.java

public static Image resize(Image i, int scale) {
    BufferedImage resizedImage = new BufferedImage(scale, scale, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g = resizedImage.createGraphics();
    g.drawImage(i, 0, 0, scale, scale, null);
    g.dispose();/*from w  ww  .ja  v a  2  s. co  m*/
    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);
    return resizedImage;
}