Examples with ParameterBlock java.awt.image.renderable.ParameterBlock used on opensource projects

Example 11 with ParameterBlock

use of java.awt.image.renderable.ParameterBlock in project digilib by robcast.

the class JAIDocuImage method loadSubimage.

/* Load an image file into the Object. */
public void loadSubimage(ImageInput ii, Rectangle region, int subsample) throws FileOpException {
    logger.debug("loadSubimage");
    this.input = ii;
    if (ii.hasFile()) {
        img = JAI.create("fileload", ii.getFile().getAbsolutePath());
    } else if (ii.hasInputStream()) {
        img = JAI.create("stream", ii.getInputStream());
    } else {
        throw new FileOpException("unable to get data for image!");
    }
    if ((region.width < img.getWidth()) || (region.height < img.getHeight())) {
        // setup Crop
        ParameterBlock cp = new ParameterBlock();
        cp.addSource(img);
        cp.add((float) region.x);
        cp.add((float) region.y);
        cp.add((float) region.width);
        cp.add((float) region.height);
        logger.debug("loadSubimage: crop");
        img = JAI.create("crop", cp);
    }
    if (subsample > 1) {
        float sc = 1f / subsample;
        ParameterBlockJAI sp = new ParameterBlockJAI("scale");
        sp.addSource(img);
        sp.setParameter("xScale", sc);
        sp.setParameter("yScale", sc);
        sp.setParameter("interpolation", Interpolation.getInstance(Interpolation.INTERP_NEAREST));
        // scale
        logger.debug("loadSubimage: scale");
        img = JAI.create("scale", sp);
    }
}

Example 12 with ParameterBlock

use of java.awt.image.renderable.ParameterBlock in project digilib by robcast.

the class JAIDocuImage method mirror.

/*
	 * mirrors the current image works only horizontal and vertical
	 */
public void mirror(double angle) throws ImageOpException {
    RenderedImage mirImg;
    // only mirroring by right angles
    TransposeType rotOp = null;
    if (Math.abs(angle) < epsilon) {
        // 0 degree
        rotOp = TransposeDescriptor.FLIP_HORIZONTAL;
    } else if (Math.abs(angle - 90) < epsilon) {
        // 90 degree
        rotOp = TransposeDescriptor.FLIP_VERTICAL;
    } else if (Math.abs(angle - 180) < epsilon) {
        // 180 degree
        rotOp = TransposeDescriptor.FLIP_HORIZONTAL;
    } else if (Math.abs(angle - 270) < epsilon) {
        // 270 degree
        rotOp = TransposeDescriptor.FLIP_VERTICAL;
    } else if (Math.abs(angle - 360) < epsilon) {
        // 360 degree
        rotOp = TransposeDescriptor.FLIP_HORIZONTAL;
    }
    // use Transpose operation
    ParameterBlock param = new ParameterBlock();
    param.addSource(img);
    param.add(rotOp);
    mirImg = JAI.create("transpose", param);
    if (mirImg == null) {
        throw new ImageOpException("Unable to flip");
    }
    img = mirImg;
}

Example 13 with ParameterBlock

use of java.awt.image.renderable.ParameterBlock in project digilib by robcast.

the class JAIDocuImage method crop.

/* crops the current image */
public void crop(int x_off, int y_off, int width, int height) throws ImageOpException {
    // setup Crop
    ParameterBlock param = new ParameterBlock();
    param.addSource(img);
    param.add((float) x_off);
    param.add((float) y_off);
    param.add((float) width);
    param.add((float) height);
    RenderedImage croppedImg = JAI.create("crop", param);
    logger.debug("CROP: " + x_off + "," + y_off + ", " + width + "," + height + " ->" + croppedImg.getWidth() + "x" + croppedImg.getHeight());
    img = croppedImg;
}

Example 14 with ParameterBlock

use of java.awt.image.renderable.ParameterBlock in project digilib by robcast.

the class JAIImageLoaderDocuImage method writeImage.

/* Write the current image to an OutputStream. */
public void writeImage(String mt, OutputStream ostream) throws ImageOpException, FileOpException {
    logger.debug("writeImage");
    try {
        // setup output
        ParameterBlock pb3 = new ParameterBlock();
        pb3.addSource(img);
        pb3.add(ostream);
        if (mt == "image/jpeg") {
            pb3.add("JPEG");
        } else if (mt == "image/png") {
            pb3.add("PNG");
        } else {
            // unknown mime type
            throw new ImageOpException("Unknown mime type: " + mt);
        }
        // render output
        JAI.create("ImageWrite", pb3);
    } catch (RuntimeException e) {
        throw new FileOpException("Error writing image.");
    }
}

Example 15 with ParameterBlock

use of java.awt.image.renderable.ParameterBlock in project Lucee by lucee.

the class Image method translate.

public void translate(int xtrans, int ytrans, Object interpolation) throws ExpressionException {
    RenderingHints hints = new RenderingHints(RenderingHints.KEY_INTERPOLATION, interpolation);
    if (interpolation != RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR) {
        hints.add(new RenderingHints(JAI.KEY_BORDER_EXTENDER, BorderExtender.createInstance(1)));
    }
    ParameterBlock pb = new ParameterBlock();
    pb.addSource(image());
    BufferedImage img = JAI.create("translate", pb).getAsBufferedImage();
    Graphics2D graphics = img.createGraphics();
    graphics.clearRect(0, 0, img.getWidth(), img.getHeight());
    AffineTransform at = new AffineTransform();
    at.setToIdentity();
    graphics.drawImage(image(), new AffineTransformOp(at, hints), xtrans, ytrans);
    graphics.dispose();
    image(img);
}