| Package | Description | 
|---|---|
| javax.imageio.plugins.jpeg | 
 Classes supporting the built-in JPEG plug-in. 
 | 
| Modifier and Type | Field and Description | 
|---|---|
static JPEGQTable | 
JPEGQTable.K1Div2Luminance
The sample luminance quantization table given in the JPEG
 specification, table K.1, with all elements divided by 2. 
 | 
static JPEGQTable | 
JPEGQTable.K1Luminance
The sample luminance quantization table given in the JPEG
 specification, table K.1. 
 | 
static JPEGQTable | 
JPEGQTable.K2Chrominance
The sample chrominance quantization table given in the JPEG
 specification, table K.2. 
 | 
static JPEGQTable | 
JPEGQTable.K2Div2Chrominance
The sample chrominance quantization table given in the JPEG
 specification, table K.1, with all elements divided by 2. 
 | 
| Modifier and Type | Method and Description | 
|---|---|
JPEGQTable[] | 
JPEGImageReadParam.getQTables()
Returns a copy of the array of quantization tables set on the
 most recent call to  
setDecodeTables, or
 null if tables are not currently set. | 
JPEGQTable[] | 
JPEGImageWriteParam.getQTables()
Returns a copy of the array of quantization tables set on the
 most recent call to  
setEncodeTables, or
 null if tables are not currently set. | 
JPEGQTable | 
JPEGQTable.getScaledInstance(float scaleFactor,
                 boolean forceBaseline)
Returns a new quantization table where the values are multiplied
 by  
scaleFactor and then clamped to the range 1..32767
 (or to 1..255 if forceBaseline is true). | 
| Modifier and Type | Method and Description | 
|---|---|
void | 
JPEGImageReadParam.setDecodeTables(JPEGQTable[] qTables,
               JPEGHuffmanTable[] DCHuffmanTables,
               JPEGHuffmanTable[] ACHuffmanTables)
Sets the quantization and Huffman tables to use in decoding
 abbreviated streams. 
 | 
void | 
JPEGImageWriteParam.setEncodeTables(JPEGQTable[] qTables,
               JPEGHuffmanTable[] DCHuffmanTables,
               JPEGHuffmanTable[] ACHuffmanTables)
Sets the quantization and Huffman tables to use in encoding
 abbreviated streams. 
 | 
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