MASTER THESIS Video Watermarking - Computer Graphics Group ...

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All the programs use the standard Unix build system, thus type subsequently in the directories containing the programs: ./autogen.sh (in case there is no configure script) ./configure make make install Some of the programs may require newer versions of libraries you have installed. The configure script should detect this and report a message. In such a case, please update the reported library. Nevertheless, install the programs in the following order: GStreamer (tarball gstreamer-0.10.11.tar.bz2) GStreamer Base Plugins (tarball gst-plugins-base-0.10.11.tar.bz2) GStreamer Good Plugins (tarball gst-plugins-good-0.10.5.tar.bz2) the H.264 codec the watermarking plugin And if you intend to execute the test scripts, install in addition: MPlayer (tarball MPlayer-1.0rc1.tar.bz2) x264 encoder (tarball x264-645.tar.bz2) 56
Appendix B The plugin usage The watermarking plugin can be used as an element queued in a GStreamer pipeline. The construction of the pipelines is described in the documentation on the project's website [12]. The name of the plugin is h264watermark. The plugin behaviour is controlled by several parameters. The list of the parameters follows: mode specifies the working mode of the plugin. Three values may be assigned: prepare (everything except parameter set NAL units and intra coded slices is dropped), embed (activates the embedding process) and detect (activates the detection process). method selects the watermarking method: block, coeff (stands for coefficient) and noise. weight sets the weight factor. content-id stands for the identifier of the video content. copy-id is the identifier of the content copy. It is possible to obtain the parameter list by using one of GStreamer utilities as well – type: gst-inspect h264watermark There are three scripts, containing complete GStreamer pipelines, provided on the enclosed CD – embed, detect and prepare – using the plugin in the corresponding mode. The required arguments are listed if the scripts are executed without any arguments. The first two arguments stand for the input and the output files. Only Matroska muxed video sequences are accepted. The other arguments represent the plugin parameters. 57
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Charles University in Prague Facult
Page 3 and 4:
Table of Contents Abstract 5 1 Intr
Page 5 and 6: Název práce: Watermarking videa A
Page 7 and 8: information about copyright owner a
Page 9 and 10: Common geometric distortions - the
Page 11 and 12: watermark, i.e. values of the water
Page 13 and 14: Chapter 3 The H.264 Standard The H.
Page 15 and 16: There are three types of slices: I,
Page 17 and 18: frequency transform. The choice is
Page 19 and 20: Chapter 4 Implementation Details Th
Page 21 and 22: auxiliary coded pictures), Supplem
Page 23 and 24: an intra coded slice, content ID -
Page 25 and 26: samples is subtracted from the resi
Page 27 and 28: At the beginning of the entire proc
Page 29 and 30: file in order to provide detailed r
Page 31 and 32: as a part of the whole process. The
Page 33 and 34: coefficients are hardly set to non-
Page 35 and 36: Table 1 outlines characteristics of
Page 37 and 38: The third and the fourth row sets c
Page 39 and 40: Using block method, we cannot consi
Page 41 and 42: probabilities of watermark detectio
Page 43 and 44: 5.4.3 Cropping In the cropping test
Page 45 and 46: 5.4.6 Blurring Blurring can be cons
Page 47 and 48: 5.4.8 Multiple Watermark Embedding
Page 49 and 50: Despite the expectations, all the m
Page 51 and 52: ecompression and noising, and to so
Page 53 and 54: Bibliography [1] Ingemar J. Cox, Jo
Page 55: Appendix A Enclosed CD & Installati
Page 59: length is the length of the list of
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