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  1. /*
  2.  * Copyright (c) 2001-2003, David Janssens
  3.  * Copyright (c) 2002-2003, Yannick Verschueren
  4.  * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
  5.  * Copyright (c) 2005, HervĂ© Drolon, FreeImage Team
  6.  * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
  7.  * All rights reserved.
  8.  *
  9.  * Redistribution and use in source and binary forms, with or without
  10.  * modification, are permitted provided that the following conditions
  11.  * are met:
  12.  * 1. Redistributions of source code must retain the above copyright
  13.  *    notice, this list of conditions and the following disclaimer.
  14.  * 2. Redistributions in binary form must reproduce the above copyright
  15.  *    notice, this list of conditions and the following disclaimer in the
  16.  *    documentation and/or other materials provided with the distribution.
  17.  *
  18.  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
  19.  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20.  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21.  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  22.  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  23.  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  24.  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  25.  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  26.  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  27.  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28.  * POSSIBILITY OF SUCH DAMAGE.
  29.  */
  30.  
  31. #ifndef __MCT_H
  32. #define __MCT_H
  33. /**
  34. @file mct.h
  35. @brief Implementation of a multi-component transforms (MCT)
  36.  
  37. The functions in MCT.C have for goal to realize reversible and irreversible multicomponent
  38. transform. The functions in MCT.C are used by some function in TCD.C.
  39. */
  40.  
  41. /** @defgroup MCT MCT - Implementation of a multi-component transform */
  42. /*@{*/
  43.  
  44. /** @name Funciones generales */
  45. /*@{*/
  46. /* ----------------------------------------------------------------------- */
  47. /**
  48. Apply a reversible multi-component transform to an image
  49. @param c0 Samples for red component
  50. @param c1 Samples for green component
  51. @param c2 Samples blue component
  52. @param n Number of samples for each component
  53. */
  54. void mct_encode(int *c0, int *c1, int *c2, int n);
  55. /**
  56. Apply a reversible multi-component inverse transform to an image
  57. @param c0 Samples for luminance component
  58. @param c1 Samples for red chrominance component
  59. @param c2 Samples for blue chrominance component
  60. @param n Number of samples for each component
  61. */
  62. void mct_decode(int *c0, int *c1, int *c2, int n);
  63. /**
  64. Get norm of the basis function used for the reversible multi-component transform
  65. @param compno Number of the component (0->Y, 1->U, 2->V)
  66. @return
  67. */
  68. double mct_getnorm(int compno);
  69.  
  70. /**
  71. Apply an irreversible multi-component transform to an image
  72. @param c0 Samples for red component
  73. @param c1 Samples for green component
  74. @param c2 Samples blue component
  75. @param n Number of samples for each component
  76. */
  77. void mct_encode_real(int *c0, int *c1, int *c2, int n);
  78. /**
  79. Apply an irreversible multi-component inverse transform to an image
  80. @param c0 Samples for luminance component
  81. @param c1 Samples for red chrominance component
  82. @param c2 Samples for blue chrominance component
  83. @param n Number of samples for each component
  84. */
  85. void mct_decode_real(int *c0, int *c1, int *c2, int n);
  86. /**
  87. Get norm of the basis function used for the irreversible multi-component transform
  88. @param compno Number of the component (0->Y, 1->U, 2->V)
  89. @return
  90. */
  91. double mct_getnorm_real(int compno);
  92. /* ----------------------------------------------------------------------- */
  93. /*@}*/
  94.  
  95. /*@}*/
  96.  
  97. #endif /* __MCT_H */
  98.