2 * Copyright (c) 2001-2002, David Janssens
3 * Copyright (c) 2002-2003, Yannick Verschueren
4 * Copyright (c) 2002-2003, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
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35 * Apply a reversible DWT transform to a component of an image
36 * tilec : tile component information (present tile)
38 /* void dwt_encode(int* a, int w, int h, int l); */
39 void dwt_encode(tcd_tilecomp_t * tilec);
41 * Apply a reversible inverse DWT transform to a component of an image
42 * tilec : tile component information (present tile)
44 void dwt_decode(tcd_tilecomp_t * tilec, int stop);
47 * Get the gain of a subband for the reversible DWT
48 * orient: number that identifies the subband (0->LL, 1->HL, 2->LH, 3->HH)
50 int dwt_getgain(int orient);
53 * Get the norm of a wavelet function of a subband at a specified level for the reversible DWT
54 * level: level of the wavelet function
55 * orient: band of the wavelet function
57 double dwt_getnorm(int level, int orient);
60 * Apply an irreversible DWT transform to a component of an image
62 void dwt_encode_real(tcd_tilecomp_t * tilec);
65 * Apply an irreversible inverse DWT transform to a component of an image
67 void dwt_decode_real(tcd_tilecomp_t * tilec, int stop);
69 * Get the gain of a subband for the irreversible DWT
70 * orient: number that identifies the subband (0->LL, 1->HL, 2->LH, 3->HH)
72 int dwt_getgain_real(int orient);
75 * Get the norm of a wavelet function of a subband at a specified level for the irreversible DWT
76 * level: level of the wavelet function
77 * orient: band of the wavelet function
79 double dwt_getnorm_real(int level, int orient);