| Package | Description | 
|---|---|
| javax.imageio | The main package of the Java Image I/O API. | 
| javax.imageio.plugins.bmp | Package containing the public classes used by the built-in BMP plug-in. | 
| javax.imageio.plugins.jpeg | Classes supporting the built-in JPEG plug-in. | 
| Modifier and Type | Method | Description | 
|---|---|---|
| ImageWriteParam | ImageWriter. getDefaultWriteParam()Returns a new  ImageWriteParamobject of the
 appropriate type for this file format containing default
 values, that is, those values that would be used
 if noImageWriteParamobject were specified. | 
| Modifier and Type | Method | 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) | |
| IIOMetadata | ImageTranscoder. convertStreamMetadata(IIOMetadata inData,
                     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. convertStreamMetadata(IIOMetadata inData,
                     ImageWriteParam param) | |
| abstract IIOMetadata | ImageWriter. getDefaultImageMetadata(ImageTypeSpecifier imageType,
                       ImageWriteParam param)Returns an  IIOMetadataobject containing default
 values for encoding an image of the given type. | |
| abstract IIOMetadata | ImageWriter. getDefaultStreamMetadata(ImageWriteParam param)Returns an  IIOMetadataobject containing default
 values for encoding a stream of images. | |
| 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 | ImageWriter. replacePixels(Raster raster,
             ImageWriteParam param)Replaces a portion of an image already present in the output
 with a portion of the given  Raster. | |
| void | ImageWriter. replacePixels(RenderedImage image,
             ImageWriteParam param)Replaces a portion of an image already present in the output
 with a portion of the given image. | |
| abstract void | ImageWriter. write(IIOMetadata streamMetadata,
     IIOImage image,
     ImageWriteParam param)Appends a complete image stream containing a single image and
 associated stream and image metadata and thumbnails to the
 output. | |
| void | ImageWriter. writeInsert(int imageIndex,
           IIOImage image,
           ImageWriteParam param)Inserts a new image into an existing image stream. | |
| void | ImageWriter. writeToSequence(IIOImage image,
               ImageWriteParam param)Appends a single image and possibly associated metadata and
 thumbnails, to the output. | 
| Modifier and Type | Class | Description | 
|---|---|---|
| class  | BMPImageWriteParamA subclass of  ImageWriteParamfor encoding images in
 the BMP format. | 
| Modifier and Type | Class | Description | 
|---|---|---|
| class  | JPEGImageWriteParamThis class adds the ability to set JPEG quantization and Huffman
 tables when using the built-in JPEG writer plug-in, and to request that
 optimized Huffman tables be computed for an image. | 
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