| 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[] |
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[] |
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 |
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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