dotnet-framework-api
- C1.WPF.PdfViewer.4.6.2 Assembly

CSJ2K.j2k.wavelet.synthesis.InverseWT

InverseWT Class

This abstract class extends the WaveletTransform one with the specifics of inverse wavelet transforms.

       <p>The image can be reconstructed at different resolution levels. This is
       controlled by the setResLevel() method. All the image, tile and component
       dimensions are relative the the resolution level being used. The number of
       resolution levels indicates the number of wavelet recompositions that will
       be used, if it is equal as the number of decomposition levels then the full
       resolution image is reconstructed.</p><p>It is assumed in this class that all tiles and components the same
       reconstruction resolution level. If that where not the case the
       implementing class should have additional data structures to store those
       values for each tile. However, the 'recResLvl' member variable always
       contain the values applicable to the current tile, since many methods
       implemented here rely on them.</p>

Inheritance

object

InvWTAdapter

InverseWT

InvWTFull

Implements

Namespace: CSJ2K.j2k.wavelet.synthesis

Assembly: C1.WPF.PdfViewer.4.6.2.dll

Syntax

public abstract class InverseWT : InvWTAdapter, InvWT, WaveletTransform, BlkImgDataSrc, ImgData

Constructors

Name Description

Name	Description
InverseWT(MultiResImgData, DecoderSpecs)	Initializes this object with the given source of wavelet coefficients. It initializes the resolution level for full resolutioin reconstruction (i.e. the maximum resolution available from the 'src' source). `<p>It is assumed here that all tiles and components have the same reconstruction resolution level. If that was not the case it should be the value for the current tile of the source.</p>`

InverseWT(MultiResImgData, DecoderSpecs)

Initializes this object with the given source of wavelet coefficients. It initializes the resolution level for full resolutioin reconstruction (i.e. the maximum resolution available from the 'src' source).

       <p>It is assumed here that all tiles and components have the same
       reconstruction resolution level. If that was not the case it should be
       the value for the current tile of the source.</p>

Methods

Name	Description
createInstance(CBlkWTDataSrcDec, DecoderSpecs)	Creates an InverseWT object that works on the data type of the source, with the special additional parameters from the parameter list. Currently the parameter list is ignored since no special parameters can be specified for the inverse wavelet transform yet.
getCompData(DataBlk, int)
getFixedPoint(int)	Returns the position of the fixed point in the specified component, or equivalently the number of fractional bits. This is the position of the least significant integral (i.e. non-fractional) bit, which is equivalent to the number of fractional bits. For instance, for fixed-point values with 2 fractional bits, 2 is returned. For floating-point data this value does not apply and 0 should be returned. Position 0 is the position of the least significant bit in the data.
getInternCompData(DataBlk, int)