Java Code Examples for javax.imageio.ImageWriter#getDefaultWriteParam()

@Override
public void saveToFile(TexturePacker.Settings settings, BufferedImage image, File file) throws IOException {
    ImageOutputStream ios = null;
    try {
        BufferedImage newImage = new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_3BYTE_BGR);
        newImage.getGraphics().drawImage(image, 0, 0, null);
        image = newImage;

        Iterator<ImageWriter> writers = ImageIO.getImageWritersByFormatName("jpg");
        ImageWriter writer = writers.next();
        ImageWriteParam param = writer.getDefaultWriteParam();
        param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
        param.setCompressionQuality(quality);
        ios = ImageIO.createImageOutputStream(file);
        writer.setOutput(ios);
        writer.write(null, new IIOImage(image, null, null), param);
    } finally {
        if (ios != null) {
            try { ios.close(); } catch (Exception ignored) { }
        }
    }
}
 

protected File writeImageWithHist(BufferedImage bi) throws IOException {
    File f = File.createTempFile("hist_", ".png", new File("."));

    ImageWriter writer = ImageIO.getImageWritersByFormatName("PNG").next();

    ImageOutputStream ios = ImageIO.createImageOutputStream(f);
    writer.setOutput(ios);

    ImageWriteParam param = writer.getDefaultWriteParam();
    ImageTypeSpecifier type = new ImageTypeSpecifier(bi);

    IIOMetadata imgMetadata = writer.getDefaultImageMetadata(type, param);

    /* add hIST node to image metadata */
    imgMetadata = upgradeMetadata(imgMetadata, bi);

    IIOImage iio_img = new IIOImage(bi,
                                    null, // no thumbnails
                                    imgMetadata);

    writer.write(iio_img);
    ios.flush();
    ios.close();
    return f;
}
 

/**
 * Encodes an image in JPEG format and writes it to an output stream.
 *
 * @param bufferedImage  the image to be encoded (<code>null</code> not 
 *     permitted).
 * @param outputStream  the OutputStream to write the encoded image to 
 *     (<code>null</code> not permitted).
 * 
 * @throws IOException if there is an I/O problem.
 * @throws NullPointerException if <code>bufferedImage</code> is 
 *     <code>null</code>.
 */
public void encode(BufferedImage bufferedImage, OutputStream outputStream) 
        throws IOException {
    if (bufferedImage == null) {
        throw new IllegalArgumentException("Null 'image' argument.");
    }
    if (outputStream == null) {
        throw new IllegalArgumentException("Null 'outputStream' argument.");
    }
    Iterator iterator = ImageIO.getImageWritersByFormatName("jpeg");
    ImageWriter writer = (ImageWriter) iterator.next();
    ImageWriteParam p = writer.getDefaultWriteParam();
    p.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
    p.setCompressionQuality(this.quality);
    ImageOutputStream ios = ImageIO.createImageOutputStream(outputStream);
    writer.setOutput(ios);
    writer.write(null, new IIOImage(bufferedImage, null, null), p);
    ios.flush();
    writer.dispose();
    ios.close();
}
 

public void writeTo(OutputStream os, String mimeType) {
    ImageWriter writer = ImageIO.getImageWritersByMIMEType(mimeType(mimeType)).next();
    dropAlphaChannelIfJPEG(writer);
    ImageWriteParam params = writer.getDefaultWriteParam();

    if (!Float.isNaN(compressionQuality) && params.canWriteCompressed()) {
        params.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
        params.setCompressionType(params.getCompressionTypes()[0]);
        params.setCompressionQuality(compressionQuality);
    }

    ImageOutputStream ios = os(os);
    writer.setOutput(ios);
    IIOImage image = new IIOImage(get(), null, null);
    try {
        writer.write(null, image, params);
    } catch (IOException e) {
        throw ioException(e);
    }
    IO.flush(ios);
    writer.dispose();
}
 

private static Image createTestImage() throws IOException  {
    BufferedImage frame1 = createFrame(new int[] { 0xffff0000, 0xffff0000 });
    BufferedImage frame2 = createFrame(new int[] { 0xff0000ff, 0xffff0000 });

    ImageWriter writer = ImageIO.getImageWritersByFormatName("GIF").next();
    ImageOutputStream ios = ImageIO.createImageOutputStream(new File("lut_test.gif"));
    ImageWriteParam param = writer.getDefaultWriteParam();
    writer.setOutput(ios);
    writer.prepareWriteSequence(null);
    writer.writeToSequence(new IIOImage(frame1, null, null), param);
    writer.writeToSequence(new IIOImage(frame2, null, null), param);
    writer.endWriteSequence();
    writer.reset();
    writer.dispose();

    ios.flush();
    ios.close();

    return Toolkit.getDefaultToolkit().createImage("lut_test.gif");
}
 

private static Image createTestImage() throws IOException  {
    BufferedImage frame1 = createFrame(new int[] { 0xffff0000, 0xffff0000 });
    BufferedImage frame2 = createFrame(new int[] { 0xff0000ff, 0xffff0000 });

    ImageWriter writer = ImageIO.getImageWritersByFormatName("GIF").next();
    ImageOutputStream ios = ImageIO.createImageOutputStream(new File("lut_test.gif"));
    ImageWriteParam param = writer.getDefaultWriteParam();
    writer.setOutput(ios);
    writer.prepareWriteSequence(null);
    writer.writeToSequence(new IIOImage(frame1, null, null), param);
    writer.writeToSequence(new IIOImage(frame2, null, null), param);
    writer.endWriteSequence();
    writer.reset();
    writer.dispose();

    ios.flush();
    ios.close();

    return Toolkit.getDefaultToolkit().createImage("lut_test.gif");
}
 

private static void writeWithCompression(BufferedImage src,
                                         String compression) throws IOException
{
    System.out.println("Compression: " + compression);
    ImageWriter writer = ImageIO.getImageWritersByFormatName("BMP").next();
    if (writer == null) {
        throw new RuntimeException("Test failed: no bmp writer available");
    }
    File fout = File.createTempFile(compression + "_", ".bmp",
                                    new File("."));

    ImageOutputStream ios = ImageIO.createImageOutputStream(fout);
    writer.setOutput(ios);

    BMPImageWriteParam param = (BMPImageWriteParam)
            writer.getDefaultWriteParam();
    param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
    param.setCompressionType(compression);
    param.setTopDown(true);
    writer.write(null, new IIOImage(src, null, null), param);
    writer.dispose();
    ios.flush();
    ios.close();

    BufferedImage dst = ImageIO.read(fout);

    verify(dst);
}
 

/**
 * Save image.
 *
 * @param image the grid image
 * @param formatName the format name
 * @param destinationFile the output
 * @param dpi the dpi
 * @return true, if successful
 * @throws IOException Signals that an I/O exception has occurred.
 */
private boolean saveGridImage(
        BufferedImage image, String formatName, File destinationFile, int dpi)
        throws IOException {
    if (!Files.delete(destinationFile)) {
        ConsoleManager.getInstance()
                .information(
                        this,
                        String.format(
                                "Failed to delete '%s'", destinationFile.getAbsolutePath()));
    }

    boolean finish = false;

    for (Iterator<ImageWriter> iw = ImageIO.getImageWritersByFormatName(formatName);
            iw.hasNext() && !finish; ) {
        ImageWriter writer = iw.next();
        ImageWriteParam writeParam = writer.getDefaultWriteParam();
        ImageTypeSpecifier typeSpecifier =
                ImageTypeSpecifier.createFromBufferedImageType(BufferedImage.TYPE_INT_RGB);
        IIOMetadata metadata = writer.getDefaultImageMetadata(typeSpecifier, writeParam);
        if (!(metadata.isReadOnly() || !metadata.isStandardMetadataFormatSupported())) {

            setDPI(metadata, dpi);

            final ImageOutputStream stream = ImageIO.createImageOutputStream(destinationFile);
            try {
                writer.setOutput(stream);
                writer.write(metadata, new IIOImage(image, null, metadata), writeParam);
            } finally {
                stream.close();
            }
            finish = true;
        }
    }

    return true;
}
 

private static void writeWithCompression(BufferedImage src,
                                         String compression) throws IOException
{
    System.out.println("Compression: " + compression);
    ImageWriter writer = ImageIO.getImageWritersByFormatName("BMP").next();
    if (writer == null) {
        throw new RuntimeException("Test failed: no bmp writer available");
    }
    File fout = File.createTempFile(compression + "_", ".bmp",
                                    new File("."));

    ImageOutputStream ios = ImageIO.createImageOutputStream(fout);
    writer.setOutput(ios);

    BMPImageWriteParam param = (BMPImageWriteParam)
            writer.getDefaultWriteParam();
    param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
    param.setCompressionType(compression);
    param.setTopDown(true);
    writer.write(null, new IIOImage(src, null, null), param);
    writer.dispose();
    ios.flush();
    ios.close();

    BufferedImage dst = ImageIO.read(fout);

    verify(dst);
}
 

private static void writeWithCompression(BufferedImage src,
                                         String compression) throws IOException
{
    System.out.println("Compression: " + compression);
    ImageWriter writer = ImageIO.getImageWritersByFormatName("BMP").next();
    if (writer == null) {
        throw new RuntimeException("Test failed: no bmp writer available");
    }
    File fout = File.createTempFile(compression + "_", ".bmp",
                                    new File("."));

    ImageOutputStream ios = ImageIO.createImageOutputStream(fout);
    writer.setOutput(ios);

    BMPImageWriteParam param = (BMPImageWriteParam)
            writer.getDefaultWriteParam();
    param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
    param.setCompressionType(compression);
    param.setTopDown(true);
    writer.write(null, new IIOImage(src, null, null), param);
    writer.dispose();
    ios.flush();
    ios.close();

    BufferedImage dst = ImageIO.read(fout);

    verify(dst);
}
 

/**
 * 画像をjpeg形式で再圧縮します。
 *
 * @param in InputStream
 * @return InputStream
 */
private InputStream compressImage(InputStream in) {
    try {
        BufferedImage image = ImageIO.read(in);

        int width = image.getWidth();
        int height = image.getHeight();

        BufferedImage canvas = new BufferedImage(width, height, BufferedImage.TYPE_3BYTE_BGR);
        Graphics gc = canvas.createGraphics();
        gc.setColor(Color.WHITE);
        gc.fillRect(0, 0, width, height);
        gc.drawImage(image, 0, 0, null);

        ByteArrayOutputStream out = new ByteArrayOutputStream();
        try (ImageOutputStream ios = ImageIO.createImageOutputStream(out)) {
            ImageWriter writer = ImageIO.getImageWritersByFormatName("jpg").next();
            try {

                ImageWriteParam iwp = writer.getDefaultWriteParam();
                if (iwp.canWriteCompressed()) {
                    iwp.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
                    iwp.setCompressionQuality(0.8f);
                }
                writer.setOutput(ios);
                writer.write(null, new IIOImage(canvas, null, null), iwp);
            } finally {
                writer.dispose();
            }
        }
        return new ByteArrayInputStream(out.toByteArray());
    } catch (Exception e) {
        return null;
    }
}
 

private static void writeWithCompression(BufferedImage src,
                                         String compression) throws IOException
{
    System.out.println("Compression: " + compression);
    ImageWriter writer = ImageIO.getImageWritersByFormatName("BMP").next();
    if (writer == null) {
        throw new RuntimeException("Test failed: no bmp writer available");
    }
    File fout = File.createTempFile(compression + "_", ".bmp",
                                    new File("."));

    ImageOutputStream ios = ImageIO.createImageOutputStream(fout);
    writer.setOutput(ios);

    BMPImageWriteParam param = (BMPImageWriteParam)
            writer.getDefaultWriteParam();
    param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
    param.setCompressionType(compression);
    param.setTopDown(true);
    writer.write(null, new IIOImage(src, null, null), param);
    writer.dispose();
    ios.flush();
    ios.close();

    BufferedImage dst = ImageIO.read(fout);

    verify(dst);
}
 

private static void doTest(String compression) {
    try {
        BufferedImage img = createTestImage();

        ImageWriter iw = (ImageWriter)
            ImageIO.getImageWritersByFormatName("bmp").next();
        if (iw == null) {
            throw new RuntimeException("No writers for bmp format."
                                       + " Test failed.");
        }


        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        iw.setOutput(ImageIO.createImageOutputStream(baos));
        ImageWriteParam param = iw.getDefaultWriteParam();
        param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
        param.setCompressionType(compression);

        iw.write(null, new IIOImage(img, null, null), param);
        baos.close();

        ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());

        ImageReader ir = (ImageReader)
            ImageIO.getImageReadersByFormatName("bmp").next();
        if (ir == null) {
            throw new RuntimeException("No readers for bmp format."
                                       + " Test failed.");
        }

        IIOReadUpdateAdapter updateAdapter = new IIOReadUpdateAdapter();
        IIOReadProgressAdapter progressAdapter = new IIOReadProgressAdapter();
        ir.addIIOReadProgressListener(progressAdapter);
        ir.addIIOReadUpdateListener(updateAdapter);
        ir.setInput(ImageIO.createImageInputStream(bais));
        BufferedImage dst = ir.read(0);

        progressAdapter.checkResults();

        if (!updateAdapter.isImageUpdateUsed) {
            throw new RuntimeException("imageUpdate was not used."
                                       + " Test failed.");
        }
    } catch(IOException e) {
        e.printStackTrace();
        throw new RuntimeException("Test failed");
    }
}
 

private ImageWriteParam getImageWriteParam(ImageWriter writer, String value) {
    ImageWriteParam imageWriteParam = writer.getDefaultWriteParam();
    imageWriteParam.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
    imageWriteParam.setCompressionType(value);
    return imageWriteParam;
}
 

private ImageWriteParam getImageWriteParam(ImageWriter writer, String value) {
    ImageWriteParam imageWriteParam = writer.getDefaultWriteParam();
    imageWriteParam.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
    imageWriteParam.setCompressionType(value);
    return imageWriteParam;
}
 

public void after( ) throws ChartException
{
	super.after( );

	if ( _oOutputIdentifier != null )
	{

		// SEARCH FOR WRITER USING FORMAT
		ImageWriter iw = ImageWriterFactory.instance( )
				.createImageWriter( getFormat( ), outputFormat );

		// SEARCH FOR WRITER USING MIME TYPE
		if ( iw == null )
		{
			String s = getMimeType( );

			if ( s == null )
			{
				throw new ChartException( ChartDeviceExtensionPlugin.ID,
						ChartException.RENDERING,
						"JavaxImageIOWriter.exception.no.imagewriter.mimetype.and.format",//$NON-NLS-1$
						new Object[]{
								getMimeType( ),
								getFormat( ),
								getClass( ).getName( )
						},
						Messages.getResourceBundle( getULocale( ) ) );
			}
			Iterator<ImageWriter> it = ImageIO.getImageWritersByMIMEType( s );
			if ( !it.hasNext( ) )
			{
				throw new ChartException( ChartDeviceExtensionPlugin.ID,
						ChartException.RENDERING,
						"JavaxImageIOWriter.exception.no.imagewriter.mimetype", //$NON-NLS-1$
						new Object[]{
							getMimeType( )
						},
						Messages.getResourceBundle( getULocale( ) ) );
			}

			iw = it.next( );
		}

		logger.log( ILogger.INFORMATION,
				Messages.getString( "JavaxImageIOWriter.info.using.imagewriter", getULocale( ) ) //$NON-NLS-1$
						+ getFormat( )
						+ iw.getClass( ).getName( ) );

		// WRITE TO SPECIFIC FILE FORMAT
		final Object o = ( _oOutputIdentifier instanceof String ) ? new File( (String) _oOutputIdentifier )
				: _oOutputIdentifier;
		try
		{
			final ImageOutputStream ios = SecurityUtil.newImageOutputStream( o );
			ImageWriteParam iwp = iw.getDefaultWriteParam( );
			updateWriterParameters( iwp );
			iw.setOutput( ios );
			iw.write( (IIOMetadata) null,
					new IIOImage( (BufferedImage) _img, null, null ),
					iwp );
			ios.close( );
		}
		catch ( Exception ex )
		{
			throw new ChartException( ChartDeviceExtensionPlugin.ID,
					ChartException.RENDERING,
					ex );
		}
		finally
		{
			iw.dispose( );
		}
	}

	// FLUSH AND RESTORE STATE OF INTERNALLY CREATED IMAGE
	if ( !_bImageExternallySpecified )
	{
		_img.flush( );
		_img = null;
	}

	// ALWAYS DISPOSE THE GRAPHICS CONTEXT THAT WAS CREATED FROM THE IMAGE
	_g2d.dispose( );
	_g2d = null;
}
 

public BMPSubsamplingTest() throws IOException {
    ImageWriter writer =
        ImageIO.getImageWritersByFormatName(format).next();

    ImageWriteParam wparam = writer.getDefaultWriteParam();
    wparam.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
    String[] types = wparam.getCompressionTypes();
    for (int t = 0; t < img_types.length; t++) {
        int img_type = img_types[t];
        System.out.println("Test for " + getImageTypeName(img_type));
        BufferedImage image = getTestImage(img_type);

        ImageTypeSpecifier specifier = new ImageTypeSpecifier(image);

        if (!writer.getOriginatingProvider().canEncodeImage(specifier)) {
            System.out.println("Writer does not support encoding this buffered image type.");
            continue;
        }

        for(int i=0; i<types.length; i++) {
            if ("BI_JPEG".equals(types[i])) {
                // exclude BI_JPEG from automatic test
                // due to color diffusion effect on the borders.
                continue;
            }

            if (canEncodeImage(types[i], specifier, img_type)) {
                System.out.println("compression type: " + types[i] +
                    " Supported for " + getImageTypeName(img_type));
            } else {
                System.out.println("compression type: " + types[i] +
                    " NOT Supported for " + getImageTypeName(img_type));
                continue;
            }
            ImageWriteParam imageWriteParam = getImageWriteParam(writer, types[i]);

            imageWriteParam.setSourceSubsampling(srcXSubsampling,
                                                 srcYSubsampling,
                                                 0, 0);
            File outputFile = new File("subsampling_test_" +
                getImageTypeName(img_type) + "__" +
                types[i] + ".bmp");
            ImageOutputStream ios =
                ImageIO.createImageOutputStream(outputFile);
            writer.setOutput(ios);

            IIOImage iioImg = new IIOImage(image, null, null);

            writer.write(null, iioImg, imageWriteParam);

            ios.flush();
            ios.close();

            BufferedImage outputImage = ImageIO.read(outputFile);
            checkTestImage(outputImage);
        }
    }
}
 

private ImageWriteParam getImageWriteParam(ImageWriter writer, String value) {
    ImageWriteParam imageWriteParam = writer.getDefaultWriteParam();
    imageWriteParam.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
    imageWriteParam.setCompressionType(value);
    return imageWriteParam;
}
 

public BMPSubsamplingTest() throws IOException {
    ImageWriter writer =
        ImageIO.getImageWritersByFormatName(format).next();

    ImageWriteParam wparam = writer.getDefaultWriteParam();
    wparam.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
    String[] types = wparam.getCompressionTypes();
    for (int t = 0; t < img_types.length; t++) {
        int img_type = img_types[t];
        System.out.println("Test for " + getImageTypeName(img_type));
        BufferedImage image = getTestImage(img_type);

        ImageTypeSpecifier specifier = new ImageTypeSpecifier(image);

        if (!writer.getOriginatingProvider().canEncodeImage(specifier)) {
            System.out.println("Writer does not support encoding this buffered image type.");
            continue;
        }

        for(int i=0; i<types.length; i++) {
            if ("BI_JPEG".equals(types[i])) {
                // exclude BI_JPEG from automatic test
                // due to color diffusion effect on the borders.
                continue;
            }

            if (canEncodeImage(types[i], specifier, img_type)) {
                System.out.println("compression type: " + types[i] +
                    " Supported for " + getImageTypeName(img_type));
            } else {
                System.out.println("compression type: " + types[i] +
                    " NOT Supported for " + getImageTypeName(img_type));
                continue;
            }
            ImageWriteParam imageWriteParam = getImageWriteParam(writer, types[i]);

            imageWriteParam.setSourceSubsampling(srcXSubsampling,
                                                 srcYSubsampling,
                                                 0, 0);
            File outputFile = new File("subsampling_test_" +
                getImageTypeName(img_type) + "__" +
                types[i] + ".bmp");
            ImageOutputStream ios =
                ImageIO.createImageOutputStream(outputFile);
            writer.setOutput(ios);

            IIOImage iioImg = new IIOImage(image, null, null);

            writer.write(null, iioImg, imageWriteParam);

            ios.flush();
            ios.close();

            BufferedImage outputImage = ImageIO.read(outputFile);
            checkTestImage(outputImage);
        }
    }
}
 

public BmpDefaultImageMetadataTest(String format) {
    try {
        bimg = new BufferedImage(200, 200, bimg.TYPE_INT_RGB);
        Graphics gg = bimg.getGraphics();
        gg.setColor(Color.red);
        gg.fillRect(50, 50, 100, 100);

        Iterator it = ImageIO.getImageWritersByFormatName(format);
        if (it.hasNext()) {
            writer = (ImageWriter) it.next();
        }
        if (writer == null) {
            throw new RuntimeException("No writer available for the given format."
                                       + " Test failed.");
        }
        writeParam = writer.getDefaultWriteParam();

        System.out.println("Testing Image Metadata for "+format+"\n");
        imageData = writer.getDefaultImageMetadata(new ImageTypeSpecifier(bimg), writeParam);
        if (imageData == null) {
            System.out.println("return value is null. No default image metadata is associated with "+format+" writer");
            throw new RuntimeException("Default image metadata is null."
                                       + " Test failed.");
        }
        int j = 0;
        String imageDataNames[] = null;
        if(imageData != null) {
            System.out.println("Is standard metadata format supported (Image) ? "+
                               imageData.isStandardMetadataFormatSupported() );
            imageDataNames = imageData.getMetadataFormatNames();
            System.out.println("\nAll supported Metadata Format Names\n");
            if(imageDataNames!=null){
                for(j=0; j<imageDataNames.length; j++)  {
                    System.out.println("FORMAT NAME: "+imageDataNames[j]);
                    if (imageDataNames[j].equals(imageData.getNativeMetadataFormatName())) {
                        System.out.println("This is a Native Metadata format\n");
                    } else {
                        System.out.println("\n");
                    }
                    System.out.println("");
                    System.out.println("IIOImageMetadata DOM tree for "+imageDataNames[j]);
                    System.out.println("");
                    Node imageNode = imageData.getAsTree(imageDataNames[j]);
                    displayMetadata(imageNode);
                    System.out.println("\n\n");
                }
            }
        }
    }catch(Exception e){
        e.printStackTrace();
        throw new RuntimeException("Exception was thrown."
                                   + " Test failed.");
    }
}