Example usage for java.awt.image Raster getMinY

List of usage examples for java.awt.image Raster getMinY

Introduction

In this page you can find the example usage for java.awt.image Raster getMinY.

Prototype

public final int getMinY() 

Source Link

Document

Returns the minimum valid Y coordinate of the Raster.

Usage

From source file:GraphicsUtil.java

/**
 * Creates a new raster that has a <b>copy</b> of the data in
 * <tt>ras</tt>.  This is highly optimized for speed.  There is
 * no provision for changing any aspect of the SampleModel.
 *
 * This method should be used when you need to change the contents
 * of a Raster that you do not "own" (ie the result of a
 * <tt>getData</tt> call).//from  www. j a v a 2  s.c  o  m
 * @param ras The Raster to copy.
 * @return    A writable copy of <tt>ras</tt>
 */
public static WritableRaster copyRaster(Raster ras) {
    return copyRaster(ras, ras.getMinX(), ras.getMinY());
}

From source file:GraphicsUtil.java

/**
 * Coerces <tt>ras</tt> to be writable.  The returned Raster continues to
 * reference the DataBuffer from ras, so modifications to the returned
 * WritableRaster will be seen in ras.<p>
 *
 * This method should only be used if you need a WritableRaster due to
 * an interface (such as to construct a BufferedImage), but have no
 * intention of modifying the contents of the returned Raster.  If
 * you have any doubt about other users of the data in <tt>ras</tt>,
 * use copyRaster (above).//from  w  w  w  .jav  a  2  s  .  c  o m
 * @param ras The raster to make writable.
 * @return    A Writable version of ras (shares DataBuffer with
 *            <tt>ras</tt>).
 */
public static WritableRaster makeRasterWritable(Raster ras) {
    return makeRasterWritable(ras, ras.getMinX(), ras.getMinY());
}

From source file:GraphicsUtil.java

/**
 * Creates a new raster that has a <b>copy</b> of the data in
 * <tt>ras</tt>.  This is highly optimized for speed.  There is
 * no provision for changing any aspect of the SampleModel.
 * However you can specify a new location for the returned raster.
 *
 * This method should be used when you need to change the contents
 * of a Raster that you do not "own" (ie the result of a
 * <tt>getData</tt> call).//w  w w.  ja va2s.com
 *
 * @param ras The Raster to copy.
 *
 * @param minX The x location for the upper left corner of the
 *             returned WritableRaster.
 *
 * @param minY The y location for the upper left corner of the
 *             returned WritableRaster.
 *
 * @return    A writable copy of <tt>ras</tt>
 */
public static WritableRaster copyRaster(Raster ras, int minX, int minY) {
    WritableRaster ret = Raster.createWritableRaster(ras.getSampleModel(), new Point(0, 0));
    ret = ret.createWritableChild(ras.getMinX() - ras.getSampleModelTranslateX(),
            ras.getMinY() - ras.getSampleModelTranslateY(), ras.getWidth(), ras.getHeight(), minX, minY, null);

    // Use System.arraycopy to copy the data between the two...
    DataBuffer srcDB = ras.getDataBuffer();
    DataBuffer retDB = ret.getDataBuffer();
    if (srcDB.getDataType() != retDB.getDataType()) {
        throw new IllegalArgumentException("New DataBuffer doesn't match original");
    }
    int len = srcDB.getSize();
    int banks = srcDB.getNumBanks();
    int[] offsets = srcDB.getOffsets();
    for (int b = 0; b < banks; b++) {
        switch (srcDB.getDataType()) {
        case DataBuffer.TYPE_BYTE: {
            DataBufferByte srcDBT = (DataBufferByte) srcDB;
            DataBufferByte retDBT = (DataBufferByte) retDB;
            System.arraycopy(srcDBT.getData(b), offsets[b], retDBT.getData(b), offsets[b], len);
        }
        case DataBuffer.TYPE_INT: {
            DataBufferInt srcDBT = (DataBufferInt) srcDB;
            DataBufferInt retDBT = (DataBufferInt) retDB;
            System.arraycopy(srcDBT.getData(b), offsets[b], retDBT.getData(b), offsets[b], len);
        }
        case DataBuffer.TYPE_SHORT: {
            DataBufferShort srcDBT = (DataBufferShort) srcDB;
            DataBufferShort retDBT = (DataBufferShort) retDB;
            System.arraycopy(srcDBT.getData(b), offsets[b], retDBT.getData(b), offsets[b], len);
        }
        case DataBuffer.TYPE_USHORT: {
            DataBufferUShort srcDBT = (DataBufferUShort) srcDB;
            DataBufferUShort retDBT = (DataBufferUShort) retDB;
            System.arraycopy(srcDBT.getData(b), offsets[b], retDBT.getData(b), offsets[b], len);
        }
        }
    }

    return ret;
}

From source file:GraphicsUtil.java

/**
 * Coerces <tt>ras</tt> to be writable.  The returned Raster continues to
 * reference the DataBuffer from ras, so modifications to the returned
 * WritableRaster will be seen in ras.<p>
 *
 * You can specify a new location for the returned WritableRaster, this
 * is especially useful for constructing BufferedImages which require
 * the Raster to be at (0,0).//from w w w.  ja v  a2 s .  c  om
 *
 * This method should only be used if you need a WritableRaster due to
 * an interface (such as to construct a BufferedImage), but have no
 * intention of modifying the contents of the returned Raster.  If
 * you have any doubt about other users of the data in <tt>ras</tt>,
 * use copyRaster (above).
 *
 * @param ras The raster to make writable.
 *
 * @param minX The x location for the upper left corner of the
 *             returned WritableRaster.
 *
 * @param minY The y location for the upper left corner of the
 *             returned WritableRaster.
 *
 * @return A Writable version of <tT>ras</tt> with it's upper left
 *         hand coordinate set to minX, minY (shares it's DataBuffer
 *         with <tt>ras</tt>).
 */
public static WritableRaster makeRasterWritable(Raster ras, int minX, int minY) {
    WritableRaster ret = Raster.createWritableRaster(ras.getSampleModel(), ras.getDataBuffer(),
            new Point(0, 0));
    ret = ret.createWritableChild(ras.getMinX() - ras.getSampleModelTranslateX(),
            ras.getMinY() - ras.getSampleModelTranslateY(), ras.getWidth(), ras.getHeight(), minX, minY, null);
    return ret;
}

From source file:GraphicsUtil.java

/**
 * Creates a new raster that has a <b>copy</b> of the data in
 * <tt>ras</tt>.  This is highly optimized for speed.  There is
 * no provision for changing any aspect of the SampleModel.
 * However you can specify a new location for the returned raster.
 *
 * This method should be used when you need to change the contents
 * of a Raster that you do not "own" (ie the result of a
 * <tt>getData</tt> call)./* w ww .  j  a v  a 2s . co  m*/
 *
 * @param ras The Raster to copy.
 *
 * @param minX The x location for the upper left corner of the
 *             returned WritableRaster.
 *
 * @param minY The y location for the upper left corner of the
 *             returned WritableRaster.
 *
 * @return    A writable copy of <tt>ras</tt>
 */
public static WritableRaster copyRaster(Raster ras, int minX, int minY) {
    WritableRaster ret = Raster.createWritableRaster(ras.getSampleModel(), new Point(0, 0));
    ret = ret.createWritableChild(ras.getMinX() - ras.getSampleModelTranslateX(),
            ras.getMinY() - ras.getSampleModelTranslateY(), ras.getWidth(), ras.getHeight(), minX, minY, null);

    // Use System.arraycopy to copy the data between the two...
    DataBuffer srcDB = ras.getDataBuffer();
    DataBuffer retDB = ret.getDataBuffer();
    if (srcDB.getDataType() != retDB.getDataType()) {
        throw new IllegalArgumentException("New DataBuffer doesn't match original");
    }
    int len = srcDB.getSize();
    int banks = srcDB.getNumBanks();
    int[] offsets = srcDB.getOffsets();
    for (int b = 0; b < banks; b++) {
        switch (srcDB.getDataType()) {
        case DataBuffer.TYPE_BYTE: {
            DataBufferByte srcDBT = (DataBufferByte) srcDB;
            DataBufferByte retDBT = (DataBufferByte) retDB;
            System.arraycopy(srcDBT.getData(b), offsets[b], retDBT.getData(b), offsets[b], len);
            break;
        }
        case DataBuffer.TYPE_INT: {
            DataBufferInt srcDBT = (DataBufferInt) srcDB;
            DataBufferInt retDBT = (DataBufferInt) retDB;
            System.arraycopy(srcDBT.getData(b), offsets[b], retDBT.getData(b), offsets[b], len);
            break;
        }
        case DataBuffer.TYPE_SHORT: {
            DataBufferShort srcDBT = (DataBufferShort) srcDB;
            DataBufferShort retDBT = (DataBufferShort) retDB;
            System.arraycopy(srcDBT.getData(b), offsets[b], retDBT.getData(b), offsets[b], len);
            break;
        }
        case DataBuffer.TYPE_USHORT: {
            DataBufferUShort srcDBT = (DataBufferUShort) srcDB;
            DataBufferUShort retDBT = (DataBufferUShort) retDB;
            System.arraycopy(srcDBT.getData(b), offsets[b], retDBT.getData(b), offsets[b], len);
            break;
        }
        }
    }

    return ret;
}

From source file:com.occamlab.te.parsers.ImageParser.java

private static String checkTransparentNodata(BufferedImage buffImage, Node node) throws Exception {
    String transparentNodata = "NA";
    boolean noData = false;
    boolean transparent = true;
    int[] bandIndexes = new int[4];
    bandIndexes[0] = 3; // A
    bandIndexes[1] = 2; // B
    bandIndexes[2] = 1; // G
    bandIndexes[3] = 0; // R
    Raster raster = buffImage.getRaster();
    int minx = raster.getMinX();
    int maxx = minx + raster.getWidth();
    int miny = raster.getMinY();
    int maxy = miny + raster.getHeight();
    int bands[][] = new int[bandIndexes.length][raster.getWidth()];
    for (int y = miny; y < maxy; y++) {
        for (int i = 0; i < bandIndexes.length; i++) {
            raster.getSamples(minx, y, maxx, 1, bandIndexes[i], bands[i]);
        }/*from  w w w  .  j av  a2s .  c o  m*/
        for (int x = minx; x < maxx; x++) {
            int a = bands[0][x];
            int b = bands[1][x];
            int g = bands[2][x];
            int r = bands[3][x];
            if (b == 0 && g == 0 && r == 0) {
                noData = true;
                if (a != 0) {
                    transparent = false;
                }
            }
        }
    }
    transparentNodata = (noData) ? (transparent) ? "true" : "false" : "NA";
    return transparentNodata;
}

From source file:GraphicsUtil.java

public static void copyData_FALLBACK(Raster src, WritableRaster dst) {
    // System.out.println("Fallback copyData");

    int x0 = dst.getMinX();
    if (x0 < src.getMinX())
        x0 = src.getMinX();//from w  w  w.j ava 2s. c  o  m

    int y0 = dst.getMinY();
    if (y0 < src.getMinY())
        y0 = src.getMinY();

    int x1 = dst.getMinX() + dst.getWidth() - 1;
    if (x1 > src.getMinX() + src.getWidth() - 1)
        x1 = src.getMinX() + src.getWidth() - 1;

    int y1 = dst.getMinY() + dst.getHeight() - 1;
    if (y1 > src.getMinY() + src.getHeight() - 1)
        y1 = src.getMinY() + src.getHeight() - 1;

    int width = x1 - x0 + 1;
    int[] data = null;

    for (int y = y0; y <= y1; y++) {
        data = src.getPixels(x0, y, width, 1, data);
        dst.setPixels(x0, y, width, 1, data);
    }
}

From source file:GraphicsUtil.java

/**
 * An internal optimized version of copyData designed to work on
 * Integer packed data with a SinglePixelPackedSampleModel.  Only
 * the region of overlap between src and dst is copied.
 *
 * Calls to this should be preflighted with is_INT_PACK_Data
 * on both src and dest (requireAlpha can be false).
 *
 * @param src The source of the data//from   www. j a  va2 s.c o  m
 * @param dst The destination for the data.
 */
public static void copyData_INT_PACK(Raster src, WritableRaster dst) {
    // System.out.println("Fast copyData");
    int x0 = dst.getMinX();
    if (x0 < src.getMinX())
        x0 = src.getMinX();

    int y0 = dst.getMinY();
    if (y0 < src.getMinY())
        y0 = src.getMinY();

    int x1 = dst.getMinX() + dst.getWidth() - 1;
    if (x1 > src.getMinX() + src.getWidth() - 1)
        x1 = src.getMinX() + src.getWidth() - 1;

    int y1 = dst.getMinY() + dst.getHeight() - 1;
    if (y1 > src.getMinY() + src.getHeight() - 1)
        y1 = src.getMinY() + src.getHeight() - 1;

    int width = x1 - x0 + 1;
    int height = y1 - y0 + 1;

    SinglePixelPackedSampleModel srcSPPSM;
    srcSPPSM = (SinglePixelPackedSampleModel) src.getSampleModel();

    final int srcScanStride = srcSPPSM.getScanlineStride();
    DataBufferInt srcDB = (DataBufferInt) src.getDataBuffer();
    final int[] srcPixels = srcDB.getBankData()[0];
    final int srcBase = (srcDB.getOffset()
            + srcSPPSM.getOffset(x0 - src.getSampleModelTranslateX(), y0 - src.getSampleModelTranslateY()));

    SinglePixelPackedSampleModel dstSPPSM;
    dstSPPSM = (SinglePixelPackedSampleModel) dst.getSampleModel();

    final int dstScanStride = dstSPPSM.getScanlineStride();
    DataBufferInt dstDB = (DataBufferInt) dst.getDataBuffer();
    final int[] dstPixels = dstDB.getBankData()[0];
    final int dstBase = (dstDB.getOffset()
            + dstSPPSM.getOffset(x0 - dst.getSampleModelTranslateX(), y0 - dst.getSampleModelTranslateY()));

    if ((srcScanStride == dstScanStride) && (srcScanStride == width)) {
        // System.out.println("VERY Fast copyData");

        System.arraycopy(srcPixels, srcBase, dstPixels, dstBase, width * height);
    } else if (width > 128) {
        int srcSP = srcBase;
        int dstSP = dstBase;
        for (int y = 0; y < height; y++) {
            System.arraycopy(srcPixels, srcSP, dstPixels, dstSP, width);
            srcSP += srcScanStride;
            dstSP += dstScanStride;
        }
    } else {
        for (int y = 0; y < height; y++) {
            int srcSP = srcBase + y * srcScanStride;
            int dstSP = dstBase + y * dstScanStride;
            for (int x = 0; x < width; x++)
                dstPixels[dstSP++] = srcPixels[srcSP++];
        }
    }
}

From source file:edu.cornell.mannlib.vitro.webapp.controller.freemarker.ImageUploaderThumbnailerTester_2.java

private Set<String> checkBlackEdges(RenderedOp image) {
    Raster imageData = image.getData();

    int minX = imageData.getMinX();
    int minY = imageData.getMinY();
    int maxX = minX + imageData.getWidth() - 1;
    int maxY = minY + imageData.getHeight() - 1;

    Set<String> blackSides = new HashSet<String>();
    if (isBlackEdge(minX, minX, minY, maxY, imageData)) {
        blackSides.add("left");
    }// ww w .java  2 s  . c  o  m
    if (isBlackEdge(minX, maxX, minY, minY, imageData)) {
        blackSides.add("top");
    }
    if (isBlackEdge(maxX, maxX, minY, maxY, imageData)) {
        blackSides.add("right");
    }
    if (isBlackEdge(minX, maxX, maxY, maxY, imageData)) {
        blackSides.add("bottom");
    }
    return blackSides;
}

From source file:com.occamlab.te.parsers.ImageParser.java

private static void processBufferedImage(BufferedImage buffimage, String formatName, NodeList nodes)
        throws Exception {
    HashMap<Object, Object> bandMap = new HashMap<Object, Object>();

    for (int i = 0; i < nodes.getLength(); i++) {
        Node node = nodes.item(i);
        if (node.getNodeType() == Node.ELEMENT_NODE) {
            if (node.getLocalName().equals("subimage")) {
                Element e = (Element) node;
                int x = Integer.parseInt(e.getAttribute("x"));
                int y = Integer.parseInt(e.getAttribute("y"));
                int w = Integer.parseInt(e.getAttribute("width"));
                int h = Integer.parseInt(e.getAttribute("height"));
                processBufferedImage(buffimage.getSubimage(x, y, w, h), formatName, e.getChildNodes());
            } else if (node.getLocalName().equals("checksum")) {
                CRC32 checksum = new CRC32();
                Raster raster = buffimage.getRaster();
                DataBufferByte buffer;
                if (node.getParentNode().getLocalName().equals("subimage")) {
                    WritableRaster outRaster = raster.createCompatibleWritableRaster();
                    buffimage.copyData(outRaster);
                    buffer = (DataBufferByte) outRaster.getDataBuffer();
                } else {
                    buffer = (DataBufferByte) raster.getDataBuffer();
                }/* w  w w  .  j ava 2s  .c  o  m*/
                int numbanks = buffer.getNumBanks();
                for (int j = 0; j < numbanks; j++) {
                    checksum.update(buffer.getData(j));
                }
                Document doc = node.getOwnerDocument();
                node.appendChild(doc.createTextNode(Long.toString(checksum.getValue())));
            } else if (node.getLocalName().equals("count")) {
                String band = ((Element) node).getAttribute("bands");
                String sample = ((Element) node).getAttribute("sample");
                if (sample.equals("all")) {
                    bandMap.put(band, null);
                } else {
                    HashMap<Object, Object> sampleMap = (HashMap<Object, Object>) bandMap.get(band);
                    if (sampleMap == null) {
                        if (!bandMap.containsKey(band)) {
                            sampleMap = new HashMap<Object, Object>();
                            bandMap.put(band, sampleMap);
                        }
                    }
                    sampleMap.put(Integer.decode(sample), new Integer(0));
                }
            } else if (node.getLocalName().equals("transparentNodata")) { // 2011-08-24
                                                                          // PwD
                String transparentNodata = checkTransparentNodata(buffimage, node);
                node.setTextContent(transparentNodata);
            }
        }
    }

    Iterator bandIt = bandMap.keySet().iterator();
    while (bandIt.hasNext()) {
        String band_str = (String) bandIt.next();
        int band_indexes[];
        if (buffimage.getType() == BufferedImage.TYPE_BYTE_BINARY
                || buffimage.getType() == BufferedImage.TYPE_BYTE_GRAY) {
            band_indexes = new int[1];
            band_indexes[0] = 0;
        } else {
            band_indexes = new int[band_str.length()];
            for (int i = 0; i < band_str.length(); i++) {
                if (band_str.charAt(i) == 'A')
                    band_indexes[i] = 3;
                if (band_str.charAt(i) == 'B')
                    band_indexes[i] = 2;
                if (band_str.charAt(i) == 'G')
                    band_indexes[i] = 1;
                if (band_str.charAt(i) == 'R')
                    band_indexes[i] = 0;
            }
        }

        Raster raster = buffimage.getRaster();
        java.util.HashMap sampleMap = (java.util.HashMap) bandMap.get(band_str);
        boolean addall = (sampleMap == null);
        if (sampleMap == null) {
            sampleMap = new java.util.HashMap();
            bandMap.put(band_str, sampleMap);
        }

        int minx = raster.getMinX();
        int maxx = minx + raster.getWidth();
        int miny = raster.getMinY();
        int maxy = miny + raster.getHeight();
        int bands[][] = new int[band_indexes.length][raster.getWidth()];

        for (int y = miny; y < maxy; y++) {
            for (int i = 0; i < band_indexes.length; i++) {
                raster.getSamples(minx, y, maxx, 1, band_indexes[i], bands[i]);
            }
            for (int x = minx; x < maxx; x++) {
                int sample = 0;
                for (int i = 0; i < band_indexes.length; i++) {
                    sample |= bands[i][x] << ((band_indexes.length - i - 1) * 8);
                }

                Integer sampleObj = new Integer(sample);

                boolean add = addall;
                if (!addall) {
                    add = sampleMap.containsKey(sampleObj);
                }
                if (add) {
                    Integer count = (Integer) sampleMap.get(sampleObj);
                    if (count == null) {
                        count = new Integer(0);
                    }
                    count = new Integer(count.intValue() + 1);
                    sampleMap.put(sampleObj, count);
                }
            }
        }
    }

    Node node = nodes.item(0);
    while (node != null) {
        if (node.getNodeType() == Node.ELEMENT_NODE) {
            if (node.getLocalName().equals("count")) {
                String band = ((Element) node).getAttribute("bands");
                String sample = ((Element) node).getAttribute("sample");
                HashMap sampleMap = (HashMap) bandMap.get(band);
                Document doc = node.getOwnerDocument();
                if (sample.equals("all")) {
                    Node parent = node.getParentNode();
                    Node prevSibling = node.getPreviousSibling();
                    Iterator sampleIt = sampleMap.keySet().iterator();
                    Element countnode = null;
                    int digits;
                    String prefix;
                    switch (buffimage.getType()) {
                    case BufferedImage.TYPE_BYTE_BINARY:
                        digits = 1;
                        prefix = "";
                        break;
                    case BufferedImage.TYPE_BYTE_GRAY:
                        digits = 2;
                        prefix = "0x";
                        break;
                    default:
                        prefix = "0x";
                        digits = band.length() * 2;
                    }
                    while (sampleIt.hasNext()) {
                        countnode = doc.createElementNS(node.getNamespaceURI(), "count");
                        Integer sampleInt = (Integer) sampleIt.next();
                        Integer count = (Integer) sampleMap.get(sampleInt);
                        if (band.length() > 0) {
                            countnode.setAttribute("bands", band);
                        }
                        countnode.setAttribute("sample", prefix + HexString(sampleInt.intValue(), digits));
                        Node textnode = doc.createTextNode(count.toString());
                        countnode.appendChild(textnode);
                        parent.insertBefore(countnode, node);
                        if (sampleIt.hasNext()) {
                            if (prevSibling != null && prevSibling.getNodeType() == Node.TEXT_NODE) {
                                parent.insertBefore(prevSibling.cloneNode(false), node);
                            }
                        }
                    }
                    parent.removeChild(node);
                    node = countnode;
                } else {
                    Integer count = (Integer) sampleMap.get(Integer.decode(sample));
                    if (count == null)
                        count = new Integer(0);
                    Node textnode = doc.createTextNode(count.toString());
                    node.appendChild(textnode);
                }
            }
        }
        node = node.getNextSibling();
    }
}