| Package | Description | 
|---|---|
| javax.imageio | The main package of the Java Image I/O API. | 
| javax.imageio.metadata | A package of the Java Image I/O API dealing with reading and writing
metadata. | 
| javax.imageio.spi | A package of the Java Image I/O API containing the plug-in interfaces
for readers, writers, transcoders, and streams, and a runtime
registry. | 
| Modifier and Type | Field and Description | 
|---|---|
| protected ImageTypeSpecifier | IIOParam. destinationTypeAn  ImageTypeSpecifierto be used to generate a
 destination image when reading, or to set the output color type
 when writing. | 
| Modifier and Type | Method and Description | 
|---|---|
| static ImageTypeSpecifier | ImageTypeSpecifier. createBanded(ColorSpace colorSpace,
            int[] bankIndices,
            int[] bandOffsets,
            int dataType,
            boolean hasAlpha,
            boolean isAlphaPremultiplied)Returns a specifier for a banded image format that will use a
  ComponentColorModeland aBandedSampleModelto store each channel in a
 separate array. | 
| static ImageTypeSpecifier | ImageTypeSpecifier. createFromBufferedImageType(int bufferedImageType)Returns an  ImageTypeSpecifierthat encodes
 one of the standardBufferedImagetypes
 (other thanTYPE_CUSTOM). | 
| static ImageTypeSpecifier | ImageTypeSpecifier. createFromRenderedImage(RenderedImage image)Returns an  ImageTypeSpecifierthat encodes the
 layout of aRenderedImage(which may be aBufferedImage). | 
| static ImageTypeSpecifier | ImageTypeSpecifier. createGrayscale(int bits,
               int dataType,
               boolean isSigned)Returns a specifier for a grayscale image format that will pack
 pixels of the given bit depth into array elements of
 the specified data type. | 
| static ImageTypeSpecifier | ImageTypeSpecifier. createGrayscale(int bits,
               int dataType,
               boolean isSigned,
               boolean isAlphaPremultiplied)Returns a specifier for a grayscale plus alpha image format
 that will pack pixels of the given bit depth into array
 elements of the specified data type. | 
| static ImageTypeSpecifier | ImageTypeSpecifier. createIndexed(byte[] redLUT,
             byte[] greenLUT,
             byte[] blueLUT,
             byte[] alphaLUT,
             int bits,
             int dataType)Returns a specifier for an indexed-color image format that will pack
 index values of the given bit depth into array elements of
 the specified data type. | 
| static ImageTypeSpecifier | ImageTypeSpecifier. createInterleaved(ColorSpace colorSpace,
                 int[] bandOffsets,
                 int dataType,
                 boolean hasAlpha,
                 boolean isAlphaPremultiplied)Returns a specifier for an interleaved image format that will
 use a  ComponentColorModeland aPixelInterleavedSampleModelto store each pixel
 component in a separate byte, short, or int. | 
| static ImageTypeSpecifier | ImageTypeSpecifier. createPacked(ColorSpace colorSpace,
            int redMask,
            int greenMask,
            int blueMask,
            int alphaMask,
            int transferType,
            boolean isAlphaPremultiplied)Returns a specifier for a packed image format that will use a
  DirectColorModeland a packedSampleModelto store each pixel packed into in a
 single byte, short, or int. | 
| ImageTypeSpecifier | IIOParam. getDestinationType()Returns the type of image to be returned by the read, if one
 was set by a call to
  setDestination(ImageTypeSpecifier), as anImageTypeSpecifier. | 
| ImageTypeSpecifier | ImageReader. getRawImageType(int imageIndex)Returns an  ImageTypeSpecifierindicating theSampleModelandColorModelwhich most
 closely represents the "raw" internal format of the image. | 
| Modifier and Type | Method and Description | 
|---|---|
| abstract Iterator<ImageTypeSpecifier> | ImageReader. getImageTypes(int imageIndex)Returns an  Iteratorcontaining possible image
 types to which the given image may be decoded, in the form ofImageTypeSpecifierss. | 
| Modifier and Type | Method and Description | 
|---|---|
| IIOMetadata | ImageTranscoder. convertImageMetadata(IIOMetadata inData,
                    ImageTypeSpecifier imageType,
                    ImageWriteParam param)Returns an  IIOMetadataobject that may be used for
 encoding and optionally modified using its document interfaces
 or other interfaces specific to the writer plug-in that will be
 used for encoding. | 
| abstract IIOMetadata | ImageWriter. convertImageMetadata(IIOMetadata inData,
                    ImageTypeSpecifier imageType,
                    ImageWriteParam param) | 
| abstract IIOMetadata | ImageWriter. getDefaultImageMetadata(ImageTypeSpecifier imageType,
                       ImageWriteParam param)Returns an  IIOMetadataobject containing default
 values for encoding an image of the given type. | 
| static Iterator<ImageWriter> | ImageIO. getImageWriters(ImageTypeSpecifier type,
               String formatName)Returns an  Iteratorcontaining all currently
 registeredImageWriters that claim to be able to
 encode images of the given layout (specified using anImageTypeSpecifier) in the given format. | 
| int | ImageWriter. getNumThumbnailsSupported(ImageTypeSpecifier imageType,
                         ImageWriteParam param,
                         IIOMetadata streamMetadata,
                         IIOMetadata imageMetadata)Returns the number of thumbnails supported by the format being
 written, given the image type and any additional write
 parameters and metadata objects that will be used during
 encoding. | 
| Dimension[] | ImageWriter. getPreferredThumbnailSizes(ImageTypeSpecifier imageType,
                          ImageWriteParam param,
                          IIOMetadata streamMetadata,
                          IIOMetadata imageMetadata)Returns an array of  Dimensions indicating the
 legal size ranges for thumbnail images as they will be encoded
 in the output file or stream. | 
| void | ImageWriter. prepareInsertEmpty(int imageIndex,
                  ImageTypeSpecifier imageType,
                  int width,
                  int height,
                  IIOMetadata imageMetadata,
                  List<? extends BufferedImage> thumbnails,
                  ImageWriteParam param)Begins the insertion of a new image with undefined pixel values
 into an existing image stream. | 
| void | ImageWriter. prepareWriteEmpty(IIOMetadata streamMetadata,
                 ImageTypeSpecifier imageType,
                 int width,
                 int height,
                 IIOMetadata imageMetadata,
                 List<? extends BufferedImage> thumbnails,
                 ImageWriteParam param)Begins the writing of a complete image stream, consisting of a
 single image with undefined pixel values and associated
 metadata and thumbnails, to the output. | 
| void | ImageReadParam. setDestinationType(ImageTypeSpecifier destinationType) | 
| void | IIOParam. setDestinationType(ImageTypeSpecifier destinationType)Sets the desired image type for the destination image, using an
  ImageTypeSpecifier. | 
| Modifier and Type | Method and Description | 
|---|---|
| protected static BufferedImage | ImageReader. getDestination(ImageReadParam param,
              Iterator<ImageTypeSpecifier> imageTypes,
              int width,
              int height)Returns the  BufferedImageto which decoded pixel
 data should be written. | 
| Modifier and Type | Method and Description | 
|---|---|
| boolean | IIOMetadataFormat. canNodeAppear(String elementName,
             ImageTypeSpecifier imageType)Returns  trueif the element (and the subtree below
 it) is allowed to appear in a metadata document for an image of
 the given type, defined by anImageTypeSpecifier. | 
| abstract boolean | IIOMetadataFormatImpl. canNodeAppear(String elementName,
             ImageTypeSpecifier imageType) | 
| Modifier and Type | Method and Description | 
|---|---|
| abstract boolean | ImageWriterSpi. canEncodeImage(ImageTypeSpecifier type)Returns  trueif theImageWriterimplementation associated with this service provider is able to
 encode an image with the given layout. | 
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