Tile-oriented Transforms

These functions perform high-level tile-oriented reversible ( _B53 modifier) and irreversible (_D97 modifier) wavelet transforms for lossless and lossy compressions, respectively, in accordance with [ISO15444], Annex F, Discrete Wavelet Transformation of Tile-Components]. The transformations are the lifting-based implementations of filtering by 5-3 reversible and 9-7 irreversible wavelet filters.

The functions operate with tile-component and perform one-level decomposition or reconstruction of the image. Each tile-component is transformed into a set of four two-dimensional subbands.

• WTGetBufSize_B53_JPEG2K
  Computes the size of the buffer for wavelet transform with reversible filter.
• WTFwd_B53_JPEG2K
  Performs a tile-oriented forward wavelet transform with reversible filter.
• WTInv_B53_JPEG2K
  Performs a tile-oriented inverse wavelet transform with reversible filter.
• WTGetBufSize_D97_JPEG2K
  Computes the size of the buffer wavelet transform with irreversible filter
• WTFwd_D97_JPEG2K
  Performs a tile-oriented forward wavelet transform with irreversible filter.
• WTInv_D97_JPEG2K
  Performs a tile-oriented inverse wavelet transform with irreversible filter.

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