Examples of ImageInputStream

ae.javax.imageio.stream.ImageInputStream
A seekable input stream interface for use by ImageReaders. Various input sources, such as InputStreams and Files, as well as future fast I/O sources may be "wrapped" by a suitable implementation of this interface for use by the Image I/O API. @see ImageInputStreamImpl @see FileImageInputStream @see FileCacheImageInputStream @see MemoryCacheImageInputStream
com.alibaba.simpleimage.io.ImageInputStream
@author wendell
com.google.code.appengine.imageio.stream.ImageInputStream
javax.imageio.stream.ImageInputStream
A seekable input stream interface for use by ImageReaders. Various input sources, such as InputStreams and Files, as well as future fast I/O sources may be "wrapped" by a suitable implementation of this interface for use by the Image I/O API. @see ImageInputStreamImpl @see FileImageInputStream @see FileCacheImageInputStream @see MemoryCacheImageInputStream
org.apache.hadoop.hdfs.server.namenode.ImageInputStream
Wrapper class used for loading images to the namesystem. It contains information about the md5 digest, size and the string representation of the underlying image location.

Examples of javax.imageio.stream.ImageInputStream

     */
    void checkTiffCompression(String filename, String expectedCompression) throws IOException
    {
        Iterator readers = ImageIO.getImageReadersBySuffix("tiff");
        ImageReader reader = (ImageReader) readers.next();
        ImageInputStream iis = ImageIO.createImageInputStream(new File(filename));
        reader.setInput(iis);
        IIOMetadata imageMetadata = reader.getImageMetadata(0);
        Element root = (Element) imageMetadata.getAsTree(STANDARD_METADATA_FORMAT);
        Element comprElement = (Element) root.getElementsByTagName("Compression").item(0);
        Node comprTypeNode = comprElement.getElementsByTagName("CompressionTypeName").item(0);
        String actualCompression = comprTypeNode.getAttributes().getNamedItem("value").getNodeValue();
        assertEquals("Incorrect TIFF compression in file " + filename, expectedCompression, actualCompression);
        iis.close();
        reader.dispose();
    }

View Full Code Here

Examples of javax.imageio.stream.ImageInputStream

        ArrayList<Vertex> vlist = new ArrayList<Vertex>();
        long maxSrcCoord = (long) Math.pow(2, bitsPerCoordinate) - 1;
        long maxSrcColor = (long) Math.pow(2, bitsPerColorComponent) - 1;
        COSStream cosStream = (COSStream) cosDictionary;


        ImageInputStream mciis = new MemoryCacheImageInputStream(cosStream.getUnfilteredStream());
        while (true)
        {
            Vertex p;
            try
            {

View Full Code Here

Examples of javax.imageio.stream.ImageInputStream

        final int height = pdImage.getHeight();
        final int bitsPerComponent = pdImage.getBitsPerComponent();
        final float[] decode = getDecodeArray(pdImage);


        // read bit stream
        ImageInputStream iis = null;
        try
        {
            // create stream
            iis = new MemoryCacheImageInputStream(pdImage.getStream().createInputStream());
            final float sampleMax = (float)Math.pow(2, bitsPerComponent) - 1f;
            final boolean isIndexed = colorSpace instanceof PDIndexed;


            // init color key mask
            float[] colorKeyRanges = null;
            BufferedImage colorKeyMask = null;
            if (colorKey != null)
            {
                colorKeyRanges = colorKey.toFloatArray();
                colorKeyMask = new BufferedImage(width, height, BufferedImage.TYPE_BYTE_GRAY);
            }


            // calculate row padding
            int padding = 0;
            if (width * numComponents * bitsPerComponent % 8 > 0)
            {
                padding = 8 - (width * numComponents * bitsPerComponent % 8);
            }


            // read stream
            byte[] srcColorValues = new byte[numComponents];
            byte[] alpha = new byte[1];
            for (int y = 0; y < height; y++)
            {
                for (int x = 0; x < width; x++)
                {
                    boolean isMasked = true;
                    for (int c = 0; c < numComponents; c++)
                    {
                        int value = (int)iis.readBits(bitsPerComponent);


                        // color key mask requires values before they are decoded
                        if (colorKeyRanges != null)
                        {
                            isMasked &= value >= colorKeyRanges[c * 2] &&
                                        value <= colorKeyRanges[c * 2 + 1];
                        }


                        // decode array
                        final float dMin = decode[c * 2];
                        final float dMax = decode[(c * 2) + 1];


                        // interpolate to domain
                        float output = dMin + (value * ((dMax - dMin) / sampleMax));


                        if (isIndexed)
                        {
                            // indexed color spaces get the raw value, because the TYPE_BYTE
                            // below cannot be reversed by the color space without it having
                            // knowledge of the number of bits per component
                            srcColorValues[c] = (byte)Math.round(output);
                        }
                        else
                        {
                            // interpolate to TYPE_BYTE
                            int outputByte = Math.round(((output - Math.min(dMin, dMax)) /
                                    Math.abs(dMax - dMin)) * 255f);


                            srcColorValues[c] = (byte)outputByte;
                        }
                    }
                    raster.setDataElements(x, y, srcColorValues);


                    // set alpha channel in color key mask, if any
                    if (colorKeyMask != null)
                    {
                        alpha[0] = (byte)(isMasked ? 255 : 0);
                        colorKeyMask.getRaster().setDataElements(x, y, alpha);
                    }
                }


                // rows are padded to the nearest byte
                iis.readBits(padding);
            }


            // use the color space to convert the image to RGB
            BufferedImage rgbImage = colorSpace.toRGBImage(raster);


            // apply color mask, if any
            if (colorKeyMask != null)
            {
                return applyColorKeyMask(rgbImage, colorKeyMask);
            }
            else
            {
                return rgbImage;
            }
        }
        finally
        {
            if (iis != null)
            {
                iis.close();
            }
        }
    }

View Full Code Here

Examples of javax.imageio.stream.ImageInputStream

        ArrayList<ShadedTriangle> list = new ArrayList<ShadedTriangle>();
        long maxSrcCoord = (long) Math.pow(2, bitsPerCoordinate) - 1;
        long maxSrcColor = (long) Math.pow(2, bitsPerColorComponent) - 1;
        COSStream cosStream = (COSStream) cosDictionary;


        ImageInputStream mciis = new MemoryCacheImageInputStream(cosStream.getUnfilteredStream());
        byte flag = (byte) 0;


        try
        {
            flag = (byte) (mciis.readBits(bitsPerFlag) & 3);
        }
        catch (EOFException ex)
        {
            LOG.error(ex);
        }


        while (true)
        {
            Vertex p0, p1, p2;
            Point2D[] ps;
            float[][] cs;
            int lastIndex;
            try
            {
                switch (flag)
                {
                    case 0:
                        p0 = readVertex(mciis, maxSrcCoord, maxSrcColor, rangeX, rangeY, colRange, ctm, xform);
                        flag = (byte) (mciis.readBits(bitsPerFlag) & 3);
                        if (flag != 0)
                        {
                            LOG.error("bad triangle: " + flag);
                        }
                        p1 = readVertex(mciis, maxSrcCoord, maxSrcColor, rangeX, rangeY, colRange, ctm, xform);
                        mciis.readBits(bitsPerFlag);
                        if (flag != 0)
                        {
                            LOG.error("bad triangle: " + flag);
                        }
                        p2 = readVertex(mciis, maxSrcCoord, maxSrcColor, rangeX, rangeY, colRange, ctm, xform);
                        ps = new Point2D[]
                        {
                            p0.point, p1.point, p2.point
                        };
                        cs = new float[][]
                        {
                            p0.color, p1.color, p2.color
                        };
                        list.add(new ShadedTriangle(ps, cs));
                        flag = (byte) (mciis.readBits(bitsPerFlag) & 3);
                        break;
                    case 1:
                        lastIndex = list.size() - 1;
                        if (lastIndex < 0)
                        {
                            LOG.error("broken data stream: " + list.size());
                        }
                        else
                        {
                            ShadedTriangle preTri = list.get(lastIndex);
                            p2 = readVertex(mciis, maxSrcCoord, maxSrcColor, rangeX, rangeY, colRange, ctm, xform);
                            ps = new Point2D[]
                            {
                                preTri.corner[1], preTri.corner[2], p2.point
                            };
                            cs = new float[][]
                            {
                                preTri.color[1], preTri.color[2], p2.color
                            };
                            list.add(new ShadedTriangle(ps, cs));
                            flag = (byte) (mciis.readBits(bitsPerFlag) & 3);
                        }
                        break;
                    case 2:
                        lastIndex = list.size() - 1;
                        if (lastIndex < 0)
                        {
                            LOG.error("broken data stream: " + list.size());
                        }
                        else
                        {
                            ShadedTriangle preTri = list.get(lastIndex);
                            p2 = readVertex(mciis, maxSrcCoord, maxSrcColor, rangeX, rangeY, colRange, ctm, xform);
                            ps = new Point2D[]
                            {
                                preTri.corner[0], preTri.corner[2], p2.point
                            };
                            cs = new float[][]
                            {
                                preTri.color[0], preTri.color[2], p2.color
                            };
                            list.add(new ShadedTriangle(ps, cs));
                            flag = (byte) (mciis.readBits(bitsPerFlag) & 3);
                        }
                        break;
                    default:
                        LOG.warn("bad flag: " + flag);
                        break;
                }
            }
            catch (EOFException ex)
            {
                break;
            }
        }
        mciis.close();
        return list;
    }

View Full Code Here

Examples of javax.imageio.stream.ImageInputStream

                {
                // PDF spec 1.7 p.171:
                // Each sample value is represented as a sequence of BitsPerSample bits. 
                // Successive values are adjacent in the bit stream; 
                // there is no padding at byte boundaries.
                ImageInputStream mciis = new MemoryCacheImageInputStream(getPDStream().createInputStream());
                for (int i = 0; i < arraySize; i++)
                {
                    for (int k = 0; k < numberOfOutputValues; k++)
                    {
                        // TODO will this cast work properly for 32 bitsPerSample or should we use long[]?
                        samples[index][k] = (int) mciis.readBits(bitsPerSample); 
                    }
                    index++;
                }
                mciis.close();
            }
            catch (IOException exception)
            {
                LOG.error("IOException while reading the sample values of this function.", exception);
            }

View Full Code Here

Examples of javax.imageio.stream.ImageInputStream

     */
    public void testCreateFromRandomAccessMulti() throws IOException
    {
        String tiffPath = "src/test/resources/org/apache/pdfbox/pdmodel/graphics/image/ccittg4multi.tif";
        
        ImageInputStream is = ImageIO.createImageInputStream(new File(tiffPath));
        ImageReader imageReader = ImageIO.getImageReaders(is).next();
        imageReader.setInput(is);
        int countTiffImages = imageReader.getNumImages(true);
        assertTrue(countTiffImages > 1);

View Full Code Here

Examples of javax.imageio.stream.ImageInputStream

        {
            throw new MissingImageReaderException("Cannot read JPEG image: " +
                    "a suitable JAI I/O image filter is not installed");
        }


        ImageInputStream iis = null;
        try
        {
            iis = ImageIO.createImageInputStream(stream);
            reader.setInput(iis);


            ImageIO.setUseCache(false);
            return reader.read(0);
        }
        finally
        {
            if (iis != null)
            {
                iis.close();
            }
            reader.dispose();
        }
    }

View Full Code Here

Examples of javax.imageio.stream.ImageInputStream

        ArrayList<Patch> list = new ArrayList<Patch>();
        long maxSrcCoord = (long) Math.pow(2, bitsPerCoordinate) - 1;
        long maxSrcColor = (long) Math.pow(2, bitsPerColorComponent) - 1;
        COSStream cosStream = (COSStream) cosDictionary;


        ImageInputStream mciis = new MemoryCacheImageInputStream(cosStream.getUnfilteredStream());


        Point2D[] implicitEdge = new Point2D[4];
        float[][] implicitCornerColor = new float[2][numberOfColorComponents];


        byte flag = (byte) 0;


        try
        {
            flag = (byte) (mciis.readBits(bitsPerFlag) & 3);
        }
        catch (EOFException ex)
        {
            LOG.error(ex);
        }


        while (true)
        {
            try
            {
                boolean isFree = (flag == 0);
                Patch current = readPatch(mciis, isFree, implicitEdge, implicitCornerColor,
                        maxSrcCoord, maxSrcColor, rangeX, rangeY, colRange, ctm, xform, numP);
                if (current == null)
                {
                    break;
                }
                list.add((Patch) current);
                flag = (byte) (mciis.readBits(bitsPerFlag) & 3);
                switch (flag)
                {
                    case 0:
                        break;
                    case 1:
                        implicitEdge = current.getFlag1Edge();
                        implicitCornerColor = current.getFlag1Color();
                        break;
                    case 2:
                        implicitEdge = current.getFlag2Edge();
                        implicitCornerColor = current.getFlag2Color();
                        break;
                    case 3:
                        implicitEdge = current.getFlag3Edge();
                        implicitCornerColor = current.getFlag3Color();
                        break;
                    default:
                        LOG.warn("bad flag: " + flag);
                        break;
                }
            }
            catch (EOFException ex)
            {
                break;
            }
        }
        mciis.close();
        return list;
    }

View Full Code Here

Examples of javax.imageio.stream.ImageInputStream

     * @return BufferedImage representation of the image
     * 
     */
    public static BufferedImage bitmapToImage(InputStream is, String format) throws IOException {
        final ImageReader rdr = ImageIO.getImageReadersByFormatName(format).next();
        final ImageInputStream imageInput = ImageIO.createImageInputStream(is);
        rdr.setInput(imageInput);
        final BufferedImage image = rdr.read(0);
        is.close();
        return image;
    }

View Full Code Here

Examples of javax.imageio.stream.ImageInputStream

     * 
     */
    public static void imageToBitmap(BufferedImage image, String data, String format) throws IOException {
        final OutputStream inb = new FileOutputStream(data);
        final ImageWriter wrt = ImageIO.getImageWritersByFormatName(format).next();
        final ImageInputStream imageInput = ImageIO.createImageOutputStream(inb);
        wrt.setOutput(imageInput);
        wrt.write(image);
        inb.close();
    }

View Full Code Here

0 1 2 3 4 5

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.