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

Example 56 with IIOImage

use of javax.imageio.IIOImage 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 57 with IIOImage

use of javax.imageio.IIOImage 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 58 with IIOImage

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

the class MainPanel method loadFromStream.

// // https://community.oracle.com/thread/1271862 Reading gif animation frame rates and such?
// private List<BufferedImage> loadFromStream(ImageInputStream imageStream) throws IOException {
// String format = "gif";
// String meta = "javax_imageio_gif_image_1.0";
// ImageReader reader = null;
// Iterator<ImageReader> readers = ImageIO.getImageReaders(imageStream);
// while (readers.hasNext()) {
// reader = readers.next();
// String metaFormat = reader.getOriginatingProvider().getNativeImageMetadataFormatName();
// if (format.equalsIgnoreCase(reader.getFormatName()) && meta.equals(metaFormat)) {
// break;
// }
// }
// ImageReader imageReader = Objects.requireNonNull(reader, "Can not read image format!");
// boolean isGif = format.equalsIgnoreCase(imageReader.getFormatName());
// imageReader.setInput(imageStream, false, !isGif);
// List<BufferedImage> list = new ArrayList<>();
// for (int i = 0; i < imageReader.getNumImages(true); i++) {
// IIOImage frame = imageReader.readAll(i, null);
// list.add((BufferedImage) frame.getRenderedImage());
// }
// imageReader.dispose();
// return list;
// }
private static List<BufferedImage> loadFromStream(ImageInputStream imageStream) throws IOException {
    Iterable<ImageReader> it = () -> ImageIO.getImageReaders(imageStream);
    ImageReader reader = StreamSupport.stream(it.spliterator(), false).filter(MainPanel::checkGifFormat).findFirst().orElseThrow(() -> new IOException("Can not read image format!"));
    reader.setInput(imageStream, false, false);
    List<BufferedImage> list = new ArrayList<>();
    for (int i = 0; i < reader.getNumImages(true); i++) {
        IIOImage frame = reader.readAll(i, null);
        list.add((BufferedImage) frame.getRenderedImage());
    }
    reader.dispose();
    return list;
}

Example 59 with IIOImage

use of javax.imageio.IIOImage 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;
    }
}

Example 60 with IIOImage

use of javax.imageio.IIOImage in project AozoraEpub3 by hmdev.

the class ImageUtils method _writeImage.

/**
 * 画像を出力 マージン指定があればカット
 * @param margin カットするピクセル数(left, top, right, bottom)
 */
private static void _writeImage(ZipArchiveOutputStream zos, BufferedImage srcImage, String ext, float jpegQuality) throws IOException {
    if ("png".equals(ext)) {
        /*//PNGEncoder kindlegenでエラーになるのと色が反映されない
			PngEncoder pngEncoder = new PngEncoder();
			int pngColorType = PngEncoder.COLOR_TRUECOLOR;
			switch (srcImage.getType()) {
			case BufferedImage.TYPE_BYTE_BINARY:
				pngColorType = PngEncoder.COLOR_INDEXED; break;
			case BufferedImage.TYPE_BYTE_INDEXED:
				pngColorType = PngEncoder.COLOR_INDEXED; break;
			case BufferedImage.TYPE_BYTE_GRAY:
				pngColorType = PngEncoder.COLOR_GRAYSCALE; break;
			}
			pngEncoder.setColorType(pngColorType);
			pngEncoder.setCompression(PngEncoder.BEST_COMPRESSION);
			pngEncoder.setIndexedColorMode(PngEncoder.INDEXED_COLORS_AUTO);
			pngEncoder.encode(srcImage, zos);
			*/
        // ImageIO.write(srcImage, "PNG", zos);
        ImageWriter imageWriter = getPngImageWriter();
        imageWriter.setOutput(ImageIO.createImageOutputStream(zos));
        imageWriter.write(srcImage);
    } else if ("jpeg".equals(ext) || "jpg".equals(ext)) {
        ImageWriter imageWriter = getJpegImageWriter();
        imageWriter.setOutput(ImageIO.createImageOutputStream(zos));
        ImageWriteParam iwp = imageWriter.getDefaultWriteParam();
        if (iwp.canWriteCompressed()) {
            try {
                iwp.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
                iwp.setCompressionQuality(jpegQuality);
                imageWriter.write(null, new IIOImage(srcImage, null, null), iwp);
            } catch (Exception e) {
                e.printStackTrace();
            }
        } else {
            imageWriter.write(srcImage);
        }
    } else {
        ImageIO.write(srcImage, ext, zos);
    }
    zos.flush();
}