Java BufferedImageOp.filter方法代码示例

import java.awt.image.BufferedImageOp; //导入方法依赖的package包/类
@Override
public void transformImage(SunGraphics2D sg, BufferedImage img,
                           BufferedImageOp op, int x, int y)
{
    if (op != null) {
        if (op instanceof AffineTransformOp) {
            AffineTransformOp atop = (AffineTransformOp) op;
            transformImage(sg, img, x, y,
                           atop.getTransform(),
                           atop.getInterpolationType());
            return;
        } else {
            if (D3DBufImgOps.renderImageWithOp(sg, img, op, x, y)) {
                return;
            }
        }
        img = op.filter(img, null);
    }
    copyImage(sg, img, x, y, null);
}
 

import java.awt.image.BufferedImageOp; //导入方法依赖的package包/类
public void runTest(Object ctx, int numReps) {
    ImageOpTests.Context ictx = (ImageOpTests.Context)ctx;
    BufferedImageOp op = ictx.bufImgOp;
    BufferedImage src = ictx.bufSrc;
    BufferedImage dst = ictx.bufDst;
    if (ictx.touchSrc) {
        Graphics gSrc = src.getGraphics();
        do {
            gSrc.fillRect(0, 0, 1, 1);
            op.filter(src, dst);
        } while (--numReps > 0);
    } else {
        do {
            op.filter(src, dst);
        } while (--numReps > 0);
    }
}
 

import java.awt.image.BufferedImageOp; //导入方法依赖的package包/类
public void transformImage(SunGraphics2D sg, BufferedImage img,
                           BufferedImageOp op, int x, int y)
{
    if (op != null) {
        if (op instanceof AffineTransformOp) {
            AffineTransformOp atop = (AffineTransformOp) op;
            transformImage(sg, img, x, y,
                           atop.getTransform(),
                           atop.getInterpolationType());
            return;
        } else {
            img = op.filter(img, null);
        }
    }
    copyImage(sg, img, x, y, null);
}
 

import java.awt.image.BufferedImageOp; //导入方法依赖的package包/类
@Override
public void transformImage(SunGraphics2D sg, BufferedImage img,
                           BufferedImageOp op, int x, int y)
{
    if (op != null) {
        if (op instanceof AffineTransformOp) {
            AffineTransformOp atop = (AffineTransformOp) op;
            transformImage(sg, img, x, y,
                           atop.getTransform(),
                           atop.getInterpolationType());
            return;
        } else {
            if (OGLBufImgOps.renderImageWithOp(sg, img, op, x, y)) {
                return;
            }
        }
        img = op.filter(img, null);
    }
    copyImage(sg, img, x, y, null);
}
 

import java.awt.image.BufferedImageOp; //导入方法依赖的package包/类
/**
 * Draws a BufferedImage that is filtered with a BufferedImageOp.
 * The rendering attributes applied include the clip, transform
 * and composite attributes.  This is equivalent to:
 * <pre>
 * img1 = op.filter(img, null);
 * drawImage(img1, new AffineTransform(1f,0f,0f,1f,x,y), null);
 * </pre>
 * @param op The filter to be applied to the image before drawing.
 * @param img The BufferedImage to be drawn.
 *            This method does nothing if <code>img</code> is null.
 * @param x,y The location in user space where the image should be drawn.
 * @see #transform
 * @see #setTransform
 * @see #setComposite
 * @see #clip
 * @see #setClip
 */
public void drawImage(BufferedImage img,
                      BufferedImageOp op,
                      int x,
                      int y) {

    if (img == null) {
        return;
    }

    int srcWidth = img.getWidth(null);
    int srcHeight = img.getHeight(null);

    if (op != null) {
        img = op.filter(img, null);
    }
    if (srcWidth <= 0 || srcHeight <= 0) {
        return;
    } else {
        AffineTransform xform = new AffineTransform(1f,0f,0f,1f,x,y);
        drawImageToPlatform(img, xform, null,
                            0, 0, srcWidth, srcHeight, false);
    }

}
 

import java.awt.image.BufferedImageOp; //导入方法依赖的package包/类
@Override
public BufferedImage run(final @NonNull BufferedImage image) {
    if (isFlippedHorizontally || isFlippedVertically) {
        final double scaleX = isFlippedHorizontally ? -1 : 1;
        final double scaleY = isFlippedVertically ? -1 : 1;
        final double translateX = isFlippedHorizontally ? -image.getWidth() : 0;
        final double translateY = isFlippedVertically ? -image.getHeight() : 0;

        final AffineTransform tx = AffineTransform.getScaleInstance(scaleX, scaleY);
        tx.translate(translateX, translateY);

        final BufferedImageOp op = new AffineTransformOp(tx, AffineTransformOp.TYPE_NEAREST_NEIGHBOR);
        return op.filter(image, null);
    }

    return image;
}
 

import java.awt.image.BufferedImageOp; //导入方法依赖的package包/类
public static BufferedImage blur(BufferedImage src) {
    BufferedImage bufferedImage = new BufferedImage(src.getWidth(), src.getHeight(), BufferedImage.TYPE_BYTE_INDEXED);

    int s1 = 7;
    int s2 = 7;
    float level = .1f / 9f;

    float[] filter = new float[s1 * s2];

    for (int i = 0; i < s1 * s2; i++) {
        filter[i] = level;
    }

    Kernel kernel = new Kernel(s1, s2, filter);
    BufferedImageOp op = new ConvolveOp(kernel);
    bufferedImage = op.filter(src, null);

    return bufferedImage;
}
 

import java.awt.image.BufferedImageOp; //导入方法依赖的package包/类
private static void doTest(BufferedImageOp op, int stype, int dtype) {
    final int size = 100;

    final BufferedImage src = new BufferedImage(size, size, stype);
    Graphics2D g = src.createGraphics();
    g.setColor(Color.red);
    g.fillRect(0, 0, size, size);
    g.dispose();


    final BufferedImage dst = new BufferedImage(size, size, dtype);
    g = dst.createGraphics();
    g.setColor(Color.blue);
    g.fillRect(0, 0, size, size);
    g.dispose();

    op.filter(src, dst);

    final int rgb = dst.getRGB(size - 1, size - 1);
    System.out.printf("dst: 0x%X ", rgb);

    if (rgb != 0xFFFF0000) {
        throw new RuntimeException(String.format("Wrong color in dst: 0x%X", rgb));
    }
}
 

import java.awt.image.BufferedImageOp; //导入方法依赖的package包/类
/**
 * Draws a BufferedImage that is filtered with a BufferedImageOp.
 * The rendering attributes applied include the clip, transform
 * and composite attributes.  This is equivalent to:
 * <pre>
 * img1 = op.filter(img, null);
 * drawImage(img1, new AffineTransform(1f,0f,0f,1f,x,y), null);
 * </pre>
 * @param op The filter to be applied to the image before drawing.
 * @param img The BufferedImage to be drawn.
 *            This method does nothing if {@code img} is null.
 * @param x,y The location in user space where the image should be drawn.
 * @see #transform
 * @see #setTransform
 * @see #setComposite
 * @see #clip
 * @see #setClip
 */
public void drawImage(BufferedImage img,
                      BufferedImageOp op,
                      int x,
                      int y) {

    if (img == null) {
        return;
    }

    int srcWidth = img.getWidth(null);
    int srcHeight = img.getHeight(null);

    if (op != null) {
        img = op.filter(img, null);
    }
    if (srcWidth <= 0 || srcHeight <= 0) {
        return;
    } else {
        AffineTransform xform = new AffineTransform(1f,0f,0f,1f,x,y);
        drawImageToPlatform(img, xform, null,
                            0, 0, srcWidth, srcHeight, false);
    }

}
 

import java.awt.image.BufferedImageOp; //导入方法依赖的package包/类
/**
 * @param bimage
 */
private static BufferedImage blurImage(final BufferedImage bimage) {
    float[] fs = new float[] { 1f / 9f, 1f / 9f, 1f / 9f, 1f / 9f, 1f / 9f,
            1f / 9f, 1f / 9f, 1f / 9f, 1f / 9f };
    final Kernel kernel = new Kernel(3, 3, fs);
    final BufferedImageOp op = new ConvolveOp(kernel);
    return op.filter(bimage, null);
}