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44 @brief Implementation of a multi-component transforms (MCT)
46 The functions in MCT.C have for goal to realize reversible and irreversible multicomponent
47 transform. The functions in MCT.C are used by some function in TCD.C.
50 /** @defgroup MCT MCT - Implementation of a multi-component transform */
53 /** @name Exported functions */
55 /* ----------------------------------------------------------------------- */
57 Apply a reversible multi-component transform to an image
58 @param c0 Samples for red component
59 @param c1 Samples for green component
60 @param c2 Samples blue component
61 @param n Number of samples for each component
63 void opj_mct_encode(OPJ_INT32 *c0, OPJ_INT32 *c1, OPJ_INT32 *c2, OPJ_UINT32 n);
65 Apply a reversible multi-component inverse transform to an image
66 @param c0 Samples for luminance component
67 @param c1 Samples for red chrominance component
68 @param c2 Samples for blue chrominance component
69 @param n Number of samples for each component
71 void opj_mct_decode(OPJ_INT32 *c0, OPJ_INT32 *c1, OPJ_INT32 *c2, OPJ_UINT32 n);
73 Get norm of the basis function used for the reversible multi-component transform
74 @param compno Number of the component (0->Y, 1->U, 2->V)
77 OPJ_FLOAT64 opj_mct_getnorm(OPJ_UINT32 compno);
80 Apply an irreversible multi-component transform to an image
81 @param c0 Samples for red component
82 @param c1 Samples for green component
83 @param c2 Samples blue component
84 @param n Number of samples for each component
86 void opj_mct_encode_real(OPJ_INT32 *c0, OPJ_INT32 *c1, OPJ_INT32 *c2, OPJ_UINT32 n);
88 Apply an irreversible multi-component inverse transform to an image
89 @param c0 Samples for luminance component
90 @param c1 Samples for red chrominance component
91 @param c2 Samples for blue chrominance component
92 @param n Number of samples for each component
94 void opj_mct_decode_real(OPJ_FLOAT32* c0, OPJ_FLOAT32* c1, OPJ_FLOAT32* c2, OPJ_UINT32 n);
96 Get norm of the basis function used for the irreversible multi-component transform
97 @param compno Number of the component (0->Y, 1->U, 2->V)
100 OPJ_FLOAT64 opj_mct_getnorm_real(OPJ_UINT32 compno);
104 @param p_coding_data MCT data
105 @param n size of components
106 @param p_data components
107 @param p_nb_comp nb of components (i.e. size of p_data)
108 @param is_signed tells if the data is signed
109 @return OPJ_FALSE if function encounter a problem, OPJ_TRUE otherwise
111 OPJ_BOOL opj_mct_encode_custom(
112 OPJ_BYTE * p_coding_data,
115 OPJ_UINT32 p_nb_comp,
116 OPJ_UINT32 is_signed);
119 @param pDecodingData MCT data
120 @param n size of components
121 @param pData components
122 @param pNbComp nb of components (i.e. size of p_data)
123 @param isSigned tells if the data is signed
124 @return OPJ_FALSE if function encounter a problem, OPJ_TRUE otherwise
126 OPJ_BOOL opj_mct_decode_custom(
127 OPJ_BYTE * pDecodingData,
131 OPJ_UINT32 isSigned);
134 @param pNorms MCT data
135 @param p_nb_comps size of components
136 @param pMatrix components
139 void opj_calculate_norms( OPJ_FLOAT64 * pNorms,
140 OPJ_UINT32 p_nb_comps,
141 OPJ_FLOAT32 * pMatrix);
145 const OPJ_FLOAT64 * opj_mct_get_mct_norms (void);
149 const OPJ_FLOAT64 * opj_mct_get_mct_norms_real (void);
150 /* ----------------------------------------------------------------------- */