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1 This package provides source code for some watermarking algorithms in portable
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2 C code. Currently it includes the following
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3
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4 watermarking algorithms
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5
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6 Bruyndonckx
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7 refer to
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8 O. Bruyndonckx, Jean-Jacques Quisquater, and Benoit M. Macq.
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9 Spatial method for copyright labeling of digital images.
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10 In IEEE Workshop on Nonlinear Signal and Image Processing '95,
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11 Thessaloniki, Greece, pages 456 - 459, 1995.
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12
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13 Corvi
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14 refer to
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15 Marco Corvi and Gianluca Nicchiotti.
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16 Wavelet-based image watermarking for copyright protection.
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17 In Scandinavian Conference on Image Analysis SCIA '97, Lappeenranta,
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18 Finland, June 1997.
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19
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20 Cox
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21 refer to
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22 Ingemar J. Cox, Joe Kilian, Tom Leighton, and Talal G. Shamoon.
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23 Secure spread spectrum watermarking for multimedia.
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24 In Proceedings of the IEEE ICIP '97,
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25 volume 6, pages 1673 - 1687, Santa Barbara, California, USA, 1997.
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26
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27 Dugad
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28 refer to
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29 Rakesh Dugad, Krishna Ratakonda, and Narendra Ahuja.
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30 A new wavelet-based scheme for watermarking images. In Proceedings of
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31 the IEEE International Conference on Image Processing, ICIP '98,
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32 Chicago, IL, USA, October 1998.
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33
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34 Fridrich (2. scheme)
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35 refer to
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36 Jiri Fridrich.
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37 Combining low-frequency and spread spectrum watermarking. In
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38 Proceedings of the SPIE Symposium on Optical Science, Engineering and
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39 Instrumentation, San Diego, USA, July 1998.
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40
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41 Koch
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42 refer to
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43 Eckhard Koch and Jian Zhao.
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44 Towards robust and hidden image copyright labeling.
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45 In Proceedings of the IEEE International Workshop on Nonlinear
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46 Signal and Image Processing, pages 452 - 455, Halkidiki, Marmaras,
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47 Greece, June 1995.
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48
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49 Kim
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50 refer to
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51 Jong Ryul Kim and Young Shik Moon.
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52 A robust wavelet-based digital watermark using level-adaptive
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53 thresholding. In Proceedings of the 6th IEEE International
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54 Conference on Image Processing ICIP '99, page 202,
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55 Kobe, Japan, October 1999.
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56
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57 Wang
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58 refer to
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59 Houng-Jyh Wang, Po-Chyi Su, and C.-C. Jay Kuo.
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60 Wavelet-based digital image watermarking. Optics Express, 3
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61 pp. 497, December 1998.
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62
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63 Xia
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64 refer to
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65 Xiang-Gen Xia, Charles G. Boncelet, and Gonzalo R. Arce.
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66 Wavelet transform based watermark for digital images. Optics Express, 3
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67 pp. 497, December 1998.
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68
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69 Xie
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70 refer to
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71 Liehua Xie and Gonzalo R. Arce.
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72 Joint wavelet compression and authentication watermarking. In
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73 Proceedings of the IEEE International Conference on Image Processing,
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74 ICIP '98, Chicago, IL, USA, 1998.
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75
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76 Zhu
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77 refer to
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78 Wenwu Zhu, Zixiang Xiong, and Ya-Qin Zhang.
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79 Multiresolution watermarking for images and video: a unified approach.
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80 In Proceedings of the IEEE International Conference o
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81
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82 many more algorithms to come!
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83 see what is in stock: http://www.cosy.sbg.ac.at/~pmeerw/Watermarking
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84
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85 and utility programs
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86
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87 cmp_pgm - compute difference image, PSNR, ...
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88 cmp_dct - compute full-frame DCT domain difference image
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89 cmp_dct8x8 - compute 8x8 block-based DCT difference image
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90 cmp_dwt - compute DWT domain difference image
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91
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92 What do I need?
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93
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94 Unix (Linux), a reasonable C compiler (GCC), and the netpbm library which you
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95 can get at http://wuarchive.wustl.edu/graphics/graphics/packages/NetPBM/
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96
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97
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98 Directions: How do I use the stuff?
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99
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100 look at the MAKEFILE...
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101 each algorithms has at least 4 files: gen_algo_sig.c, wm_algo_e.c, wm_algo_d.c,
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102 cmp_algo_sig.c where 'algo' is the name of the actual watermarking algorithm
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103 (usually the principal author's name), where might also be some common files
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104 for each algorithm, algo_common.{c|h}, and some support files for sorting,
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105 the DCT, ...
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106
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107 just try
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108
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109 make
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110 make test
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111
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112 next, try to run each program with the -h parameter to find out what options
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113 are supported - the programs are pretty consistent and have reasonable
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114 default settings
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115
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116 e.g.
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117
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118 wm_cox_e -h
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119
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120 The programs all support standard input and standard output, the only
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121 supported image file format is PGM for grayscale images and PPM for color
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122 images; most programs have only been tested with 512x512 images.
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123 You can find the Lena image in PGM format in the images/ sub-directory.
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124
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125
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126 Disclaimer: #include <disclaimer.h>
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127
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128 Feel free to use the accompaigning code for your research! However, I do
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129 not guarantee for anything, in particular parts of the provided code may
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130 be covered by copyrights of a third party or by patent claims. I do not
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131 guarantee for any functionality, bla-bla, ...
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132
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133 If you use the accompanying code, please cite my thesis:
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134
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135 Peter Meerwald, Digital Image Watermarking in the Wavelet Transform Domain,
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136 Master's Thesis, Department of Scientific Computing, University of Salzburg,
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137 Austria, January 2001.
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138
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139
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140 Contact: Comments are welcome!
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141
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142 More algorithms will be added over time, I have implemented about 13
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143 watermarking algorithms in the spatial-, DCT-, and wavelet domain so far.
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144 Please report what problems you have, suggestions, ...
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145
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146 Peter Meerwald
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147
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148 Dept. of Scientific Computing
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149 University of Salzburg
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150 Jakob-Haringer-Str. 2
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151 A-5020 Salzburg
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152 AUSTRIA
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153
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154 pmeerw@cosy.sbg.ac.at
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155 http://www.cosy.sbg.ac.at/~pmeerw/Watermarking
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156
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157 +43-662-8044-6327
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