| java.lang.Object
 jj2000.j2k.ModuleSpec
jj2000.j2k.quantization.QuantTypeSpec
| QuantTypeSpec | | public class QuantTypeSpec extends ModuleSpec (Code) | | This class extends ModuleSpec class in order to hold specifications about
the quantization type to use in each tile-component. Supported quantization
type are:
- Reversible (no quantization)
- Derived (the quantization step size is derived from the one of the
LL-subband)
- Expounded (the quantization step size of each subband is signalled in
the codestream headers)
See Also: ModuleSpec |
| Constructor Summary | |
| public | QuantTypeSpec(int nt, int nc, byte type)
Constructs an empty 'QuantTypeSpec' with specified number of tile and
components. | | public | QuantTypeSpec(int nt, int nc, byte type, J2KImageWriteParamJava wp, String values)
Constructs a new 'QuantTypeSpec' for the specified number of components
and tiles and the arguments of "-Qtype" option. |
| Method Summary | |
| public boolean | isDerived(int t, int c)
Returns true if given tile-component uses derived quantization step
size. | | public boolean | isFullyNonReversible()
Check the irreversibility of the whole image. | | public boolean | isFullyReversible()
Check the reversibility of the whole image. | | public boolean | isReversible(int t, int c)
Check the reversibility of the given tile-component. |
| QuantTypeSpec | | public QuantTypeSpec(int nt, int nc, byte type)(Code) | | Constructs an empty 'QuantTypeSpec' with specified number of tile and
components. This constructor is called by the decoder.
Parameters:
nt - Number of tiles
Parameters:
nc - Number of components
Parameters:
type - the type of the specification module i.e. tile specific,component specific or both. |
| QuantTypeSpec | | public QuantTypeSpec(int nt, int nc, byte type, J2KImageWriteParamJava wp, String values)(Code) | | Constructs a new 'QuantTypeSpec' for the specified number of components
and tiles and the arguments of "-Qtype" option. This constructor is
called by the encoder.
Parameters:
nt - The number of tiles
Parameters:
nc - The number of components
Parameters:
type - the type of the specification module i.e. tile specific,component specific or both. |
| isDerived | | public boolean isDerived(int t, int c)(Code) | | Returns true if given tile-component uses derived quantization step
size.
Parameters:
t - Tile index
Parameters:
c - Component index True if derived quantization step size |
| isFullyNonReversible | | public boolean isFullyNonReversible()(Code) | | Check the irreversibility of the whole image.
Whether or not the whole image is reversible |
| isFullyReversible | | public boolean isFullyReversible()(Code) | | Check the reversibility of the whole image.
Whether or not the whole image is reversible |
| isReversible | | public boolean isReversible(int t, int c)(Code) | | Check the reversibility of the given tile-component.
Parameters:
t - The index of the tile
Parameters:
c - The index of the component Whether or not the tile-component is reversible |
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