Example usage for org.apache.pdfbox.pdmodel.graphics.color PDDeviceGray INSTANCE

Introduction

In this page you can find the example usage for org.apache.pdfbox.pdmodel.graphics.color PDDeviceGray INSTANCE.

Prototype

PDDeviceGray INSTANCE

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Document

The single instance of this class.

Usage

From source file:edu.ist.psu.sagnik.research.pdfbox2playground.javatest.ExtractImages.java

License:Apache License

/**
 * Writes the image to a file with the filename + an appropriate suffix, like "Image.jpg".
 * The suffix is automatically set by the
 * @param filename the filename/*w  w w  . java2 s  .  c o  m*/
 * @throws IOException When somethings wrong with the corresponding file.
 */
private void write2file(PDImage pdImage, String filename, boolean directJPEG) throws IOException {
    String suffix = pdImage.getSuffix();
    if (suffix == null) {
        suffix = "png";
    }

    FileOutputStream out = null;
    try {
        out = new FileOutputStream(filename + "." + suffix);
        BufferedImage image = pdImage.getImage();
        if (image != null) {
            if ("jpg".equals(suffix)) {
                String colorSpaceName = pdImage.getColorSpace().getName();
                if (directJPEG || PDDeviceGray.INSTANCE.getName().equals(colorSpaceName)
                        || PDDeviceRGB.INSTANCE.getName().equals(colorSpaceName)) {
                    // RGB or Gray colorspace: get and write the unmodifiedJPEG stream
                    //InputStream data = pdImage.getColor.getPartiallyFilteredStream(JPEG);
                    //IOUtils.copy(data, out);
                    //IOUtils.closeQuietly(data);
                    BufferedImage b = pdImage.getImage();
                    ImageIOUtil.writeImage(b, "jpg", out);
                } else {
                    // for CMYK and other "unusual" colorspaces, the JPEG will be converted
                    ImageIOUtil.writeImage(image, suffix, out);
                }
            } else {
                ImageIOUtil.writeImage(image, suffix, out);
            }
        }
        out.flush();
    } finally {
        if (out != null) {
            out.close();
        }
    }
}

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From source file:org.apache.tika.parser.pdf.PDF2XHTMLPureJava.java

License:Apache License

private void writeToBuffer(PDImageXObject pdImage, String suffix, OutputStream out) throws IOException {

    BufferedImage image = pdImage.getImage();
    if (image != null) {
        if ("jpg".equals(suffix)) {
            String colorSpaceName = pdImage.getColorSpace().getName();
            //TODO: figure out if we want directJPEG as a configuration
            //previously: if (directJPeg || PDDeviceGray....
            if (PDDeviceGray.INSTANCE.getName().equals(colorSpaceName)
                    || PDDeviceRGB.INSTANCE.getName().equals(colorSpaceName)) {
                // RGB or Gray colorspace: get and write the unmodifiedJPEG stream
                InputStream data = pdImage.getStream().createInputStream(JPEG);
                org.apache.pdfbox.io.IOUtils.copy(data, out);
                org.apache.pdfbox.io.IOUtils.closeQuietly(data);
            } else {
                // for CMYK and other "unusual" colorspaces, the JPEG will be converted
                //ImageIOUtil.writeImage(image, suffix, out);
            }//from  w w  w  .j  a v  a 2 s .co m
        } else if ("jp2".equals(suffix) || "jpx".equals(suffix)) {
            InputStream data = pdImage.createInputStream(JP2);
            org.apache.pdfbox.io.IOUtils.copy(data, out);
            org.apache.pdfbox.io.IOUtils.closeQuietly(data);
        } else if ("jb2".equals(suffix)) {
            InputStream data = pdImage.createInputStream(JB2);
            org.apache.pdfbox.io.IOUtils.copy(data, out);
            org.apache.pdfbox.io.IOUtils.closeQuietly(data);
        } else {
            //ImageIOUtil.writeImage(image, suffix, out);
        }
    }
    out.flush();
}

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