# Uses of Class
javax.imageio.ImageReader

Packages that use ImageReader
Package | Description
--- | ---
javax.imageio | The main package of the Java Image I/O API.
javax.imageio.event | A package of the Java Image I/O API dealing with synchronous notification of events during the reading and writing of images.
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.

## Uses of ImageReader in javax.imageio

Methods in javax.imageio that return ImageReader
Modifier and Type | Method | Description
--- | --- | ---
`static ImageReader` | ImageIO.`getImageReader​(ImageWriter writer)` | Returns an `ImageReader` corresponding to the given `ImageWriter`, if there is one, or `null` if the plug-in for this `ImageWriter` does not specify a corresponding `ImageReader`, or if the given `ImageWriter` is not registered.

Methods in javax.imageio that return types with arguments of type ImageReader
Modifier and Type | Method | Description
--- | --- | ---
`static Iterator<ImageReader>` | ImageIO.`getImageReaders​(Object input)` | Returns an `Iterator` containing all currently registered `ImageReader`s that claim to be able to decode the supplied `Object`, typically an `ImageInputStream`.
`static Iterator<ImageReader>` | ImageIO.`getImageReadersByFormatName​(String formatName)` | Returns an `Iterator` containing all currently registered `ImageReader`s that claim to be able to decode the named format.
`static Iterator<ImageReader>` | ImageIO.`getImageReadersByMIMEType​(String MIMEType)` | Returns an `Iterator` containing all currently registered `ImageReader`s that claim to be able to decode files with the given MIME type.
`static Iterator<ImageReader>` | ImageIO.`getImageReadersBySuffix​(String fileSuffix)` | Returns an `Iterator` containing all currently registered `ImageReader`s that claim to be able to decode files with the given suffix.

Methods in javax.imageio with parameters of type ImageReader
Modifier and Type | Method | Description
--- | --- | ---
`static Iterator<ImageTranscoder>` | ImageIO.`getImageTranscoders​(ImageReader reader, ImageWriter writer)` | Returns an `Iterator` containing all currently registered `ImageTranscoder`s that claim to be able to transcode between the metadata of the given `ImageReader` and `ImageWriter`.
`static ImageWriter` | ImageIO.`getImageWriter​(ImageReader reader)` | Returns an `ImageWriter` corresponding to the given `ImageReader`, if there is one, or `null` if the plug-in for this `ImageReader` does not specify a corresponding `ImageWriter`, or if the given `ImageReader` is not registered.

## Uses of ImageReader in javax.imageio.event

Methods in javax.imageio.event with parameters of type ImageReader
Modifier and Type | Method | Description
--- | --- | ---
`void` | IIOReadProgressListener.`imageComplete​(ImageReader source)` | Reports that the current image read operation has completed.
`void` | IIOReadProgressListener.`imageProgress​(ImageReader source, float percentageDone)` | Reports the approximate degree of completion of the current `read` call of the associated `ImageReader`.
`void` | IIOReadProgressListener.`imageStarted​(ImageReader source, int imageIndex)` | Reports that an image read operation is beginning.
`void` | IIOReadUpdateListener.`imageUpdate​(ImageReader source, BufferedImage theImage, int minX, int minY, int width, int height, int periodX, int periodY, int[] bands)` | Reports that a given region of the image has been updated.
`void` | IIOReadUpdateListener.`passComplete​(ImageReader source, BufferedImage theImage)` | Reports that the current read operation has completed a progressive pass.
`void` | IIOReadUpdateListener.`passStarted​(ImageReader source, BufferedImage theImage, int pass, int minPass, int maxPass, int minX, int minY, int periodX, int periodY, int[] bands)` | Reports that the current read operation is about to begin a progressive pass.
`void` | IIOReadProgressListener.`readAborted​(ImageReader source)` | Reports that a read has been aborted via the reader's `abort` method.
`void` | IIOReadProgressListener.`sequenceComplete​(ImageReader source)` | Reports that a sequence of read operations has completed.
`void` | IIOReadProgressListener.`sequenceStarted​(ImageReader source, int minIndex)` | Reports that a sequence of read operations is beginning.
`void` | IIOReadProgressListener.`thumbnailComplete​(ImageReader source)` | Reports that a thumbnail read operation has completed.
`void` | IIOReadUpdateListener.`thumbnailPassComplete​(ImageReader source, BufferedImage theThumbnail)` | Reports that the current thumbnail read operation has completed a progressive pass.
`void` | IIOReadUpdateListener.`thumbnailPassStarted​(ImageReader source, BufferedImage theThumbnail, int pass, int minPass, int maxPass, int minX, int minY, int periodX, int periodY, int[] bands)` | Reports that the current thumbnail read operation is about to begin a progressive pass.
`void` | IIOReadProgressListener.`thumbnailProgress​(ImageReader source, float percentageDone)` | Reports the approximate degree of completion of the current `getThumbnail` call within the associated `ImageReader`.
`void` | IIOReadProgressListener.`thumbnailStarted​(ImageReader source, int imageIndex, int thumbnailIndex)` | Reports that a thumbnail read operation is beginning.
`void` | IIOReadUpdateListener.`thumbnailUpdate​(ImageReader source, BufferedImage theThumbnail, int minX, int minY, int width, int height, int periodX, int periodY, int[] bands)` | Reports that a given region of a thumbnail image has been updated.
`void` | IIOReadWarningListener.`warningOccurred​(ImageReader source, String warning)` | Reports the occurrence of a non-fatal error in decoding.

## Uses of ImageReader in javax.imageio.spi

Methods in javax.imageio.spi that return ImageReader
Modifier and Type | Method | Description
--- | --- | ---
`ImageReader` | ImageReaderSpi.`createReaderInstance()` | Returns an instance of the `ImageReader` implementation associated with this service provider.
`abstract ImageReader` | ImageReaderSpi.`createReaderInstance​(Object extension)` | Returns an instance of the `ImageReader` implementation associated with this service provider.

Methods in javax.imageio.spi with parameters of type ImageReader
Modifier and Type | Method | Description
--- | --- | ---
`boolean` | ImageReaderSpi.`isOwnReader​(ImageReader reader)` | Returns `true` if the `ImageReader` object passed in is an instance of the `ImageReader` associated with this service provider.