| 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 | Class and Description | 
|---|---|
| class  | ImageReadParamA class describing how a stream is to be decoded. | 
| class  | ImageWriteParamA class describing how a stream is to be encoded. | 
| Modifier and Type | Method and Description | 
|---|---|
| boolean | IIOParamController. activate(IIOParam param)Activates the controller. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | BMPImageWriteParamA subclass of  ImageWriteParamfor encoding images in
 the BMP format. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | JPEGImageReadParamThis class adds the ability to set JPEG quantization and Huffman
 tables when using the built-in JPEG reader plug-in. | 
| 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. | 
 Submit a bug or feature 
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
 Copyright © 1993, 2017, Oracle and/or its affiliates.  All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.