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Java Source Code / Java Documentation » 6.0 JDK Modules » Java Advanced Imaging » com.sun.media.jai.codec

Source Cross Reference

Class Diagram

Java Document (Java Doc)

com.sun.media.jai.codec .ImageDecoder

All known Subclasses:   com.sun.media.jai.codec .ImageDecoderImpl,
ImageDecoder
public interface ImageDecoder (Code)
An interface describing objects that transform an InputStream into a BufferedImage or Raster.
This interface is not a committed part of the JAI API. It may be removed or changed in future releases of JAI.

Method Summary
Raster decodeAsRaster()
     Returns a Raster that contains the decoded contents of the SeekableStream associated with this ImageDecoder.
Raster decodeAsRaster(int page)
     Returns a Raster that contains the decoded contents of the SeekableStream associated with this ImageDecoder. The given page of a multi-page image is decoded.
RenderedImage decodeAsRenderedImage()
     Returns a RenderedImage that contains the decoded contents of the SeekableStream associated with this ImageDecoder.
RenderedImage decodeAsRenderedImage(int page)
     Returns a RenderedImage that contains the decoded contents of the SeekableStream associated with this ImageDecoder. The given page of a multi-page image is decoded.
SeekableStream getInputStream()
     Returns the SeekableStream associated with this ImageDecoder.
int getNumPages()
     Returns the number of pages present in the current stream.
ImageDecodeParam getParam()
     Returns the current parameters as an instance of the ImageDecodeParam interface.
void setParam(ImageDecodeParam param)
     Sets the current parameters to an instance of the ImageDecodeParam interface.

Method Detail
decodeAsRaster
Raster decodeAsRaster() throws IOException(Code)
Returns a Raster that contains the decoded contents of the SeekableStream associated with this ImageDecoder. Only the first page of a multi-page image is decoded.

decodeAsRaster
Raster decodeAsRaster(int page) throws IOException(Code)
Returns a Raster that contains the decoded contents of the SeekableStream associated with this ImageDecoder. The given page of a multi-page image is decoded. If the page does not exist, an IOException will be thrown. Page numbering begins at zero.
Parameters:
  page - The page to be decoded.

decodeAsRenderedImage
RenderedImage decodeAsRenderedImage() throws IOException(Code)
Returns a RenderedImage that contains the decoded contents of the SeekableStream associated with this ImageDecoder. Only the first page of a multi-page image is decoded.

decodeAsRenderedImage
RenderedImage decodeAsRenderedImage(int page) throws IOException(Code)
Returns a RenderedImage that contains the decoded contents of the SeekableStream associated with this ImageDecoder. The given page of a multi-page image is decoded. If the page does not exist, an IOException will be thrown. Page numbering begins at zero.
Parameters:
  page - The page to be decoded.

getInputStream
SeekableStream getInputStream()(Code)
Returns the SeekableStream associated with this ImageDecoder.

getNumPages
int getNumPages() throws IOException(Code)
Returns the number of pages present in the current stream.

getParam
ImageDecodeParam getParam()(Code)
Returns the current parameters as an instance of the ImageDecodeParam interface. Concrete implementations of this interface will return corresponding concrete implementations of the ImageDecodeParam interface. For example, a JPEGImageDecoder will return an instance of JPEGDecodeParam.

setParam
void setParam(ImageDecodeParam param)(Code)
Sets the current parameters to an instance of the ImageDecodeParam interface. Concrete implementations of ImageDecoder may throw a RuntimeException if the param argument is not an instance of the appropriate subclass or subinterface. For example, a JPEGImageDecoder will expect param to be an instance of JPEGDecodeParam.

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