Examples with ImageWriter javax.imageio.ImageWriter used on opensource projects

Example 76 with ImageWriter

use of javax.imageio.ImageWriter in project nutz by nutzam.

the class Images method writeJpeg.

/**
 * 写入一个 JPG 图像
 *
 * @param im
 *            图像对象
 * @param targetJpg
 *            目标输出 JPG 图像文件
 * @param quality
 *            质量 0.1f ~ 1.0f
 */
public static void writeJpeg(RenderedImage im, Object targetJpg, float quality) {
    ImageWriter writer = null;
    try {
        writer = ImageIO.getImageWritersBySuffix("jpg").next();
        ImageWriteParam param = writer.getDefaultWriteParam();
        param.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
        param.setCompressionQuality(quality);
        ImageOutputStream os = ImageIO.createImageOutputStream(targetJpg);
        writer.setOutput(os);
        writer.write((IIOMetadata) null, new IIOImage(im, null, null), param);
        os.flush();
        os.close();
    } catch (IOException e) {
        throw Lang.wrapThrow(e);
    } finally {
        if (writer != null) {
            try {
                writer.dispose();
            } catch (Throwable e) {
            }
        }
    }
}

Example 77 with ImageWriter

use of javax.imageio.ImageWriter in project robolectric by robolectric.

the class ImageUtil method writeToStream.

public static boolean writeToStream(Bitmap realBitmap, CompressFormat format, int quality, OutputStream stream) {
    if ((quality < 0) || (quality > 100)) {
        throw new IllegalArgumentException("Quality out of bounds!");
    }
    try {
        ImageWriter writer = null;
        Iterator<ImageWriter> iter = ImageIO.getImageWritersByFormatName(getFormatName(format));
        if (iter.hasNext()) {
            writer = iter.next();
        }
        if (writer == null) {
            return false;
        }
        try (ImageOutputStream ios = ImageIO.createImageOutputStream(stream)) {
            writer.setOutput(ios);
            ImageWriteParam iwparam = writer.getDefaultWriteParam();
            iwparam.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
            iwparam.setCompressionQuality((quality / 100f));
            int width = realBitmap.getWidth();
            int height = realBitmap.getHeight();
            boolean needAlphaChannel = needAlphaChannel(format);
            BufferedImage bufferedImage = Shadows.shadowOf(realBitmap).getBufferedImage();
            if (bufferedImage == null) {
                bufferedImage = new BufferedImage(realBitmap.getWidth(), realBitmap.getHeight(), BufferedImage.TYPE_INT_ARGB);
            }
            int outputImageType = getBufferedImageType(realBitmap.getConfig(), needAlphaChannel);
            if (outputImageType != BufferedImage.TYPE_INT_ARGB) {
                // re-encode image data with a type that is compatible with the output format.
                BufferedImage outputBufferedImage = new BufferedImage(width, height, outputImageType);
                Graphics2D g = outputBufferedImage.createGraphics();
                g.drawImage(bufferedImage, 0, 0, null);
                g.dispose();
                bufferedImage = outputBufferedImage;
            }
            writer.write(null, new IIOImage(bufferedImage, null, null), iwparam);
            ios.flush();
            writer.dispose();
        }
    } catch (IOException ignore) {
        return false;
    }
    return true;
}

Example 78 with ImageWriter

use of javax.imageio.ImageWriter in project photon-core by 1000Memories.

the class PhotoResource method getPhoto.

@GET
@Timed
@CacheControl(immutable = true)
public Response getPhoto(@PathParam("name") String name, @MatrixParam("w") Integer width, @MatrixParam("r") RotationParam rotateAngle, @MatrixParam("c") RectangleParam crop) throws Exception {
    InputStream resultStream;
    InputStream imageStream;
    try {
        imageStream = new BufferedInputStream(photoProvider.getPhotoInputStream(name));
    } catch (FileNotFoundException fnfe) {
        throw new WebApplicationException(Response.Status.NOT_FOUND);
    }
    String mimeType = URLConnection.guessContentTypeFromStream(imageStream);
    if (mimeType == null) {
        // Not implemented
        throw new WebApplicationException(501);
    }
    if (width != null || rotateAngle != null || crop != null) {
        BufferedImage image;
        TimerContext readContext = readTimer.time();
        try {
            image = ImageIO.read(imageStream);
        } finally {
            imageStream.close();
            readContext.stop();
        }
        if (crop != null) {
            image = com.thousandmemories.photon.core.Processor.crop(image, crop.get());
        }
        if (rotateAngle != null) {
            image = com.thousandmemories.photon.core.Processor.rotate(image, rotateAngle.get());
        }
        if (width != null) {
            image = com.thousandmemories.photon.core.Processor.fitToWidth(image, width);
        }
        Iterator<ImageWriter> i = ImageIO.getImageWritersByMIMEType(mimeType);
        if (!i.hasNext()) {
            mimeType = "image/jpeg";
            i = ImageIO.getImageWritersByMIMEType(mimeType);
        }
        ImageWriter writer = i.next();
        ByteArrayOutputStream os = new ByteArrayOutputStream();
        writer.setOutput(new MemoryCacheImageOutputStream(os));
        writer.write(image);
        image.flush();
        image = null;
        resultStream = new ByteArrayInputStream(os.toByteArray());
    } else {
        resultStream = imageStream;
    }
    return Response.ok(resultStream, mimeType).build();
}

Example 79 with ImageWriter

use of javax.imageio.ImageWriter in project java-swing-tips by aterai.

the class MainPanel method createAnimatedGifFile.

private static File createAnimatedGifFile(List<Shape> list, Dimension size) throws IOException {
    Iterator<ImageWriter> it = ImageIO.getImageWritersByFormatName("gif");
    ImageWriter writer = it.hasNext() ? it.next() : null;
    if (Objects.isNull(writer)) {
        throw new IOException();
    }
    File file = File.createTempFile("anime", ".gif");
    file.deleteOnExit();
    try (ImageOutputStream stream = ImageIO.createImageOutputStream(file)) {
        writer.setOutput(stream);
        writer.prepareWriteSequence(null);
        IIOMetadataNode gce = new IIOMetadataNode("GraphicControlExtension");
        gce.setAttribute("disposalMethod", "none");
        gce.setAttribute("userInputFlag", "FALSE");
        gce.setAttribute("transparentColorFlag", "FALSE");
        gce.setAttribute("transparentColorIndex", "0");
        gce.setAttribute("delayTime", Objects.toString(DELAY));
        IIOMetadataNode ae = new IIOMetadataNode("ApplicationExtension");
        ae.setAttribute("applicationID", "NETSCAPE");
        ae.setAttribute("authenticationCode", "2.0");
        // last two bytes is an unsigned short (little endian) that
        // indicates the number of times to loop.
        // 0 means loop forever.
        ae.setUserObject(new byte[] { 0x1, 0x0, 0x0 });
        IIOMetadataNode aes = new IIOMetadataNode("ApplicationExtensions");
        aes.appendChild(ae);
        // Create animated GIF using imageio | Oracle Community
        // https://community.oracle.com/thread/1264385
        BufferedImage image = new BufferedImage(size.width, size.height, BufferedImage.TYPE_INT_ARGB);
        ImageWriteParam iwp = writer.getDefaultWriteParam();
        IIOMetadata metadata = writer.getDefaultImageMetadata(new ImageTypeSpecifier(image), iwp);
        String metaFormat = metadata.getNativeMetadataFormatName();
        Node root = metadata.getAsTree(metaFormat);
        root.appendChild(gce);
        root.appendChild(aes);
        metadata.setFromTree(metaFormat, root);
        // make frame
        for (int i = 0; i < list.size() * DELAY; i++) {
            paintFrame(image, list);
            Collections.rotate(list, 1);
            writeToSequence(writer, image, metadata);
            metadata = null;
        }
        writer.endWriteSequence();
    }
    return file;
}

Example 80 with ImageWriter

use of javax.imageio.ImageWriter in project openolat by klemens.

the class ImageHelperImpl method writeTo.

/**
 * Can change this to choose a better compression level as the default
 * @param image
 * @param scaledImage
 * @return
 */
public static boolean writeTo(BufferedImage image, File scaledImage, Size scaledSize, String outputFormat) {
    try {
        if (!StringHelper.containsNonWhitespace(outputFormat)) {
            outputFormat = OUTPUT_FORMAT;
        }
        Iterator<ImageWriter> writers = ImageIO.getImageWritersByFormatName(outputFormat);
        if (writers.hasNext()) {
            ImageWriter writer = writers.next();
            ImageWriteParam iwp = getOptimizedImageWriteParam(writer, scaledSize);
            IIOImage iiOImage = new IIOImage(image, null, null);
            ImageOutputStream iOut = new FileImageOutputStream(scaledImage);
            writer.setOutput(iOut);
            writer.write(null, iiOImage, iwp);
            writer.dispose();
            iOut.flush();
            iOut.close();
            return true;
        } else {
            return ImageIO.write(image, outputFormat, scaledImage);
        }
    } catch (IOException e) {
        return false;
    }
}