ComponentOne PdfViewer for WPF and Silverlight
C1.WPF.PdfViewer.4.6.2 Assembly / CSJ2K.j2k.entropy.encoder Namespace / EntropyCoder Class
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    EntropyCoder Class
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    This abstract class provides the general interface for block-based entropy encoders. The input to the entropy coder is the quantized wavelet coefficients, or codewords, represented in sign magnitude. The output is a compressed code-block with rate-distortion information.

    The source of data for objects of this class are 'CBlkQuantDataSrcEnc' objects.

    For more details on the sign magnitude representation used see the Quantizer class.

    This class provides default implemenations for most of the methods (wherever it makes sense), under the assumption that the image and component dimensions, and the tiles, are not modifed by the entropy coder. If that is not the case for a particular implementation then the methods should be overriden.

    Object Model
    EntropyCoder Class
    Syntax
    Inheritance Hierarchy

    System.Object
       CSJ2K.j2k.image.ImgDataAdapter
          CSJ2K.j2k.entropy.encoder.EntropyCoder
             CSJ2K.j2k.entropy.encoder.StdEntropyCoder

    See Also