Package org.aoju.bus.image.nimble.reader

Class NativeDCMImageReader

java.lang.Object

javax.imageio.ImageReader

org.aoju.bus.image.nimble.reader.NativeDCMImageReader

All Implemented Interfaces:

Closeable, AutoCloseable

public class NativeDCMImageReader
extends ImageReader
implements Closeable

Since:

Java 17+

Author:

Kimi Liu

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	NativeDCMImageReader.NativeDCMImageReadParam

Field Summary

Fields

Modifier and Type	Field	Description
static final String	POST_PIXEL_DATA

Fields inherited from class javax.imageio.ImageReader

availableLocales, ignoreMetadata, input, locale, minIndex, originatingProvider, progressListeners, seekForwardOnly, updateListeners, warningListeners, warningLocales

Constructor Summary

Constructors

Constructor	Description
NativeDCMImageReader(ImageReaderSpi originatingProvider)

Method Summary

Modifier and Type	Method	Description
boolean	canReadRaster()
void	close()
void	dispose()
static void	generateOffsetLengths(Fragments pixelData, int frames, byte[] basicOffsetTable, long start)
ImageReadParam	getDefaultReadParam()
int	getHeight(int frameIndex)
IIOMetadata	getImageMetadata(int frameIndex)
Iterator<ImageTypeSpecifier>	getImageTypes(int frameIndex)
int	getNumImages(boolean allowSearch)
double	getPixelValue(int frameIndex, int row, int column)	获取图片像素点的像素值,用于计算ct值
ImageTypeSpecifier	getRawImageType(int frameIndex)
DicomMetaData	getStreamMetadata()	Gets the stream metadata.
DicomMetaData	getStreamMetadata(String formatName, Set<String> nodeNames)	Gets the stream metadata.
int	getWidth(int frameIndex)
ImageInputStream	iisOfFrame(int frameIndex)
BufferedImage	read(int frameIndex, ImageReadParam param)
Attributes	readPostPixeldata()
Raster	readRaster(int frameIndex, ImageReadParam param)
void	setInput(Object input, boolean seekForwardOnly, boolean ignoreMetadata)

Methods inherited from class javax.imageio.ImageReader

abort, abortRequested, addIIOReadProgressListener, addIIOReadUpdateListener, addIIOReadWarningListener, checkReadParamBandSettings, clearAbortRequest, computeRegions, getAspectRatio, getAvailableLocales, getDestination, getFormatName, getImageMetadata, getInput, getLocale, getMinIndex, getNumThumbnails, getOriginatingProvider, getSourceRegion, getThumbnailHeight, getThumbnailWidth, getTileGridXOffset, getTileGridYOffset, getTileHeight, getTileWidth, hasThumbnails, isIgnoringMetadata, isImageTiled, isRandomAccessEasy, isSeekForwardOnly, processImageComplete, processImageProgress, processImageStarted, processImageUpdate, processPassComplete, processPassStarted, processReadAborted, processSequenceComplete, processSequenceStarted, processThumbnailComplete, processThumbnailPassComplete, processThumbnailPassStarted, processThumbnailProgress, processThumbnailStarted, processThumbnailUpdate, processWarningOccurred, processWarningOccurred, read, readAll, readAll, readAsRenderedImage, readerSupportsThumbnails, readThumbnail, readTile, readTileRaster, removeAllIIOReadProgressListeners, removeAllIIOReadUpdateListeners, removeAllIIOReadWarningListeners, removeIIOReadProgressListener, removeIIOReadUpdateListener, removeIIOReadWarningListener, reset, setInput, setInput, setLocale

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

POST_PIXEL_DATA

public static final String POST_PIXEL_DATA

See Also:

• Constant Field Values

Constructor Details

NativeDCMImageReader

public NativeDCMImageReader(ImageReaderSpi originatingProvider)

Method Details

generateOffsetLengths

public static void generateOffsetLengths(Fragments pixelData,
 int frames,
 byte[] basicOffsetTable,
 long start)

setInput

public void setInput(Object input,
 boolean seekForwardOnly,
 boolean ignoreMetadata)

Overrides:

setInput in class ImageReader

getNumImages

public int getNumImages(boolean allowSearch)
                 throws IOException

Specified by:

getNumImages in class ImageReader

Throws:

IOException

getWidth

public int getWidth(int frameIndex)
             throws IOException

Specified by:

getWidth in class ImageReader

Throws:

IOException

getHeight

public int getHeight(int frameIndex)
              throws IOException

Specified by:

getHeight in class ImageReader

Throws:

IOException

getRawImageType

public ImageTypeSpecifier getRawImageType(int frameIndex)
                                   throws IOException

Overrides:

getRawImageType in class ImageReader

Throws:

IOException

getImageTypes

public Iterator<ImageTypeSpecifier> getImageTypes(int frameIndex)
                                           throws IOException

Specified by:

getImageTypes in class ImageReader

Throws:

IOException

getDefaultReadParam

public ImageReadParam getDefaultReadParam()

Overrides:

getDefaultReadParam in class ImageReader

getStreamMetadata

public DicomMetaData getStreamMetadata()
                                throws IOException

Gets the stream metadata. May not contain post pixel data unless there are no images or the getStreamMetadata has been called with the post pixel data node being specified.

Specified by:

getStreamMetadata in class ImageReader

Throws:

IOException

getStreamMetadata

public DicomMetaData getStreamMetadata(String formatName,
 Set<String> nodeNames)
                                throws IOException

Gets the stream metadata. If nodeNames contains POST_PIXEL_DATA consts "postPixelData" then read the post pixel data as well. In an InputStream instance that can only safely be done after all pixel data is read. On imageInputStream it may be slow for large multiframes, but can safely be done at any time.

Overrides:

getStreamMetadata in class ImageReader

Throws:

IOException

getImageMetadata

public IIOMetadata getImageMetadata(int frameIndex)

Specified by:

getImageMetadata in class ImageReader

canReadRaster

public boolean canReadRaster()

Overrides:

canReadRaster in class ImageReader

readRaster

public Raster readRaster(int frameIndex,
 ImageReadParam param)
                  throws IOException

Overrides:

readRaster in class ImageReader

Throws:

IOException

read

public BufferedImage read(int frameIndex,
 ImageReadParam param)
                   throws IOException

Specified by:

read in class ImageReader

Throws:

IOException

iisOfFrame

public ImageInputStream iisOfFrame(int frameIndex)
                            throws IOException

Throws:

IOException

readPostPixeldata

public Attributes readPostPixeldata()
                             throws IOException

Throws:

IOException

dispose

public void dispose()

Overrides:

dispose in class ImageReader

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

getPixelValue

public double getPixelValue(int frameIndex,
 int row,
 int column)
                     throws IOException

获取图片像素点的像素值,用于计算ct值

Parameters:

frameIndex - 图像在dcm文件中的索引

row - 像素点行号

column - 像素点列号

Returns:

pixel value 像素值

Throws:

IOException - io异常