| protected static void | ImageReader. checkReadParamBandSettings(ImageReadParam param,
                          int numSrcBands,
                          int numDstBands) | A utility method that may be used by readers to test the
 validity of the source and destination band settings of an
 ImageReadParam. | 
| protected static void | ImageReader. computeRegions(ImageReadParam param,
              int srcWidth,
              int srcHeight,
              BufferedImage image,
              Rectangle srcRegion,
              Rectangle destRegion) | Computes the source region of interest and the destination
 region of interest, taking the width and height of the source
 image, an optional destination image, and an optional
 ImageReadParaminto account. | 
| protected static BufferedImage | ImageReader. getDestination(ImageReadParam param,
              Iterator<ImageTypeSpecifier> imageTypes,
              int width,
              int height) | Returns the BufferedImageto which decoded pixel
 data should be written. | 
| protected static Rectangle | ImageReader. getSourceRegion(ImageReadParam param,
               int srcWidth,
               int srcHeight) | A utility method that may be used by readers to compute the
 region of the source image that should be read, taking into
 account any source region and subsampling offset settings in
 the supplied ImageReadParam. | 
| abstract BufferedImage | ImageReader. read(int imageIndex,
    ImageReadParam param) | Reads the image indexed by imageIndexand returns
 it as a completeBufferedImage, using a suppliedImageReadParam. | 
| IIOImage | ImageReader. readAll(int imageIndex,
       ImageReadParam param) | Reads the image indexed by imageIndexand returns
 anIIOImagecontaining the image, thumbnails, and
 associated image metadata, using a suppliedImageReadParam. | 
| RenderedImage | ImageReader. readAsRenderedImage(int imageIndex,
                   ImageReadParam param) | Returns a RenderedImageobject that contains the
 contents of the image indexed byimageIndex. | 
| Raster | ImageReader. readRaster(int imageIndex,
          ImageReadParam param) | Returns a new Rasterobject containing the raw pixel data
 from the image stream, without any color conversion applied. |