Implementation of the oriented wavelet transform for image compression. These binaries use code from the libit library (http://libit.sourceforge.net) and the openjpeg software (http://www.openjpeg.org). The programs provided herein are for scientific use only. Commercial use of this software, in particular, is prohibited without authorization from the author. This software is provided in the hope that they will be useful, and without any warranty of any kind. Part of this software contains code from the libit library which is provided here under the same licence by the authors. All other uses of this library are otherwise covered by the LGPL. The openjpeg code is licenced under a BSD licence provided here: ============================================================================ Copyright (c) 2001-2002, David Janssens Copyright (c) 2003, Yannick Verschueren Copyright (c) 2003, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ============================================================================ Encoding: ========= ./owavelet_ebcot_encoder image.pgm image.cmp levels target_rate [lambda] Encodes the PGM image 'image.pgm' to the compressed file 'image.cmp' using an oriented wavelet transform on 'level' levels. The target rate is given in bits per pixel. An optional lambda parameter can be specified to encode the map for a fixed slope, which allows using the same map at all rates. Decoding: ========= ./owavelet_ebcot_decoder image.cmp image.pgm [map.pgm] Decodes the compressed file 'image.cmp' to the PGM image file 'image.pgm'. Optionnally, the orientation map can be output. Codec: ====== ./owavelet_ebcot_codec image.pgm map.pgm levels target_rate [lambda] This does encoding and decoding of the 'image.pgm' PGM image and computes the rate-distorsion performance. The orientation map is output in 'map.pgm'. Other parameters are similar to the encoder.