Examples of javax.imageio.IIOImage

javax.imageio.IIOImage
A simple container class to aggregate an image, a set of thumbnail (preview) images, and an object representing metadata associated with the image.
The image data may take the form of either a RenderedImage, or a Raster. Reader methods that return an IIOImage will always return a BufferedImage using the RenderedImage reference. Writer methods that accept an IIOImage will always accept a RenderedImage, and may optionally accept a Raster.
Exactly one of getRenderedImage and getRaster will return a non-null value. Subclasses are responsible for ensuring this behavior. @see ImageReader#readAll(int,ImageReadParam) @see ImageReader#readAll(java.util.Iterator) @see ImageWriter#write(javax.imageio.metadata.IIOMetadata,IIOImage,ImageWriteParam) @see ImageWriter#write(IIOImage) @see ImageWriter#writeToSequence(IIOImage,ImageWriteParam) @see ImageWriter#writeInsert(int,IIOImage,ImageWriteParam)

    **/
    public synchronized InputStream resize(File file, Dimension maxSize) throws IOException{
        InputStream result = null;


        if(maxSize != null){
            IIOImage image = read(file);
            BufferedImage img = (BufferedImage) image.getRenderedImage();
            final float factor = calculateScaling(img, maxSize);


            if(factor < 1.0f){
                System.err.println("Resizing " + file.getName() + ", Factor: " + factor);
                img = resize(img, factor);

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    public InputStream transform(File jpeg, String stamptext, Dimension maxSize, Path2D track, Point2D pt)
            throws IOException{
        if(maxSize == null && stamptext == null){
            return new FileInputStream(jpeg);
        }
        IIOImage image = read(jpeg);
        BufferedImage img = (BufferedImage) image.getRenderedImage();
        final float factor = calculateScaling(img, maxSize);
        boolean hasChanged = false;


        if(factor < 1.0f){
            System.err.println("Resizing " + jpeg.getName() + ", Factor: " + factor);

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        return img;
    }


    private IIOImage read(File jpeg) throws IOException{
        initReader();
        IIOImage image = null;
        /* Read the input image including stream and image meta-data */
        do{
            ImageInputStream iis =
                    ImageIO.createImageInputStream(
                    new BufferedInputStream(new FileInputStream(jpeg)));

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    }




    /* DateTime, Lat, Lon, Ele */
    public synchronized InputStream stamp(File jpeg, String text) throws IOException{
        IIOImage image = read(jpeg);
        final BufferedImage img = (BufferedImage) image.getRenderedImage();
        image.setRenderedImage(stamp(img, text));
        return writeTransformedImage(image, img);
    }

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                        }
                        writerParams.setCompressionQuality(quality);
                    }
                    IIOMetadata meta = createMetadata( image, imageWriter, writerParams, resolution);
                    imageWriter.setOutput( output );
                    imageWriter.write( null, new IIOImage( image, null, meta ), writerParams );
                    foundWriter = true;
                }
                catch( IIOException io )
                {
                    throw new IOException( io.getMessage() );

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            iwp.setCompressionQuality(0.75f); // we can control quality here
        }


        writer.setOutput(memOutStream);
        writer.write(null, new IIOImage(finalImage, null, null), iwp);
        memOutStream.flush();
        memOutStream.close();
        writer.dispose();
    }

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            iwp.setCompressionQuality(0.95f);


            // Write the image.


            writer.write(null,
                    new IIOImage((BufferedImage) imageArea.getImage(), null, null),
                    iwp);
        } catch (IOException e2) {
            showError(e2.getMessage());
        } finally {
            try {

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                iwparam.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
                iwparam.setCompressionQuality(jpegQuality);//Set here your compression rate
                ImageWriter iw = ImageIO.getImageWritersByFormatName("jpg").next();
                ImageOutputStream ios = ImageIO.createImageOutputStream(baos);
                iw.setOutput(ios);
                iw.write(null, new IIOImage(scaled, null, null), iwparam);
                iw.dispose();
                ios.close();


                scaled.flush();
                scaled = null;

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            return;
        }


        ioutstream = ImageIO.createImageOutputStream(outStream);
        writer.setOutput(ioutstream);
        writer.write(meta, new IIOImage(image, null, meta), param);
        ioutstream.close();
        writer.dispose();
    }

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                meta = updateMetadata(meta, params); 
            }
            
            //Write image
            iiowriter.setOutput(imgout);
            IIOImage iioimg = new IIOImage(image, null, meta);
            iiowriter.write(null, iioimg, iwParam);
            
        } finally {
            imgout.close();
            iiowriter.dispose();

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