01: /*
02: * $RCSfile: InvWT.java,v $
03: * $Revision: 1.1 $
04: * $Date: 2005/02/11 05:02:31 $
05: * $State: Exp $
06: *
07: * Class: InvWT
08: *
09: * Description: The interface for implementations of a inverse
10: * wavelet transform.
11: *
12: *
13: *
14: * COPYRIGHT:
15: *
16: * This software module was originally developed by Raphaël Grosbois and
17: * Diego Santa Cruz (Swiss Federal Institute of Technology-EPFL); Joel
18: * Askelöf (Ericsson Radio Systems AB); and Bertrand Berthelot, David
19: * Bouchard, Félix Henry, Gerard Mozelle and Patrice Onno (Canon Research
20: * Centre France S.A) in the course of development of the JPEG2000
21: * standard as specified by ISO/IEC 15444 (JPEG 2000 Standard). This
22: * software module is an implementation of a part of the JPEG 2000
23: * Standard. Swiss Federal Institute of Technology-EPFL, Ericsson Radio
24: * Systems AB and Canon Research Centre France S.A (collectively JJ2000
25: * Partners) agree not to assert against ISO/IEC and users of the JPEG
26: * 2000 Standard (Users) any of their rights under the copyright, not
27: * including other intellectual property rights, for this software module
28: * with respect to the usage by ISO/IEC and Users of this software module
29: * or modifications thereof for use in hardware or software products
30: * claiming conformance to the JPEG 2000 Standard. Those intending to use
31: * this software module in hardware or software products are advised that
32: * their use may infringe existing patents. The original developers of
33: * this software module, JJ2000 Partners and ISO/IEC assume no liability
34: * for use of this software module or modifications thereof. No license
35: * or right to this software module is granted for non JPEG 2000 Standard
36: * conforming products. JJ2000 Partners have full right to use this
37: * software module for his/her own purpose, assign or donate this
38: * software module to any third party and to inhibit third parties from
39: * using this software module for non JPEG 2000 Standard conforming
40: * products. This copyright notice must be included in all copies or
41: * derivative works of this software module.
42: *
43: * Copyright (c) 1999/2000 JJ2000 Partners.
44: *
45: *
46: *
47: */
48:
49: package jj2000.j2k.wavelet.synthesis;
50:
51: import jj2000.j2k.wavelet.*;
52:
53: /**
54: * This interface extends the WaveletTransform with the
55: * specifics of inverse wavelet transforms. Classes that implement inverse
56: * wavelet transfoms should implement this interface.
57: *
58: * <P>This class does not define the methods to transfer data, just the
59: * specifics to inverse wavelet transform. Different data transfer methods are
60: * evisageable for different transforms.
61: * */
62: public interface InvWT extends WaveletTransform {
63:
64: /**
65: * Sets the image reconstruction resolution level. A value of 0
66: * means reconstruction of an image with the lowest resolution
67: * (dimension) available.
68: *
69: * <P>Note: Image resolution level indexes may differ from
70: * tile-component resolution index. They are indeed indexed
71: * starting from the lowest number of decomposition levels of each
72: * component of each tile.
73: *
74: * <P>Example: For an image (1 tile) with 2 components (component
75: * 0 having 2 decomposition levels and component 1 having 3
76: * decomposition levels), the first (tile-) component has 3
77: * resolution levels and the second one has 4 resolution levels,
78: * whereas the image has only 3 resolution levels available.
79: *
80: * @param rl The image resolution level.
81: *
82: * @return The vertical coordinate of the image origin in the canvas
83: * system, on the reference grid.
84: *
85: * */
86: public void setImgResLevel(int rl);
87: }
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