Add graph and text into documentation.

3 files changed, 327 insertions, 3 deletions

diff --git a/doc/documentation.txt b/doc/documentation.txt
index 5e58ade..4538ee5 100644
--- a/doc/documentation.txt
+++ b/doc/documentation.txt
@@ -1,6 +1,7 @@
 = Automatisierte Erkennung von Werbebloecken
 :author: Jan Klemkow, Benjamin Franzke
 :lang: de
+:imagesdir: image
 
 == Einleitung
 
@@ -84,6 +85,15 @@ angefragte.
 
 Zur Erkennung von Schnitten in Videoaufzeichnungen wurde im Rahmen dieser
 Arbeit ein verfahren entwickelt.
+
+Der erste Ansatz bestand in der Annahme, dass sich die durchschnittliche
+Hellichkeit des Bildes wahrend einer Szene nicht stark veraender.
+Aus diesem Grund wurde ein Algorithmus implementiert, welche ueber jeden
+Frame die durchschnittlichen Y-Wert berechnet.
+
+.Durchschnittlicher Y-Wert ueber das Heute-100sec-Video
+image::avg.svg[]
+
 Dabei wird eine Video Frame fuer Frame durchlaufen und zwischen zwei aufeinander
 folgender Frames eine durchschnittliche Pixeldifferenz berechnet.
 Die Pixeldifferenz wird nur anhand des Y-Kanals berechnet.
@@ -91,7 +101,7 @@ Die Pixeldifferenz wird nur anhand des Y-Kanals berechnet.
 .Frame-Differenzwerte innerhalb des Heute-100sec-Videos
 image::cuts.svg[]
 
-Betrachtet man den Graphen, welche aus diesen Werten entsteht, laesst sich
+Betrachtet man den Graphen, welche aus diesen Werten entsteht, lassen sich
 Schnitte gut anhand der Pieks erkennen.
 Da diese Pieks allerdings nicht immer die gleichen Amplitude haben und auch
 andere Wertebereiche, welche keinen Schnitt enthalten eine aehnliche Amplitude
@@ -125,6 +135,16 @@ vom Anfrang eines anderen Videos.
 Ausgegeben wird der Zeitpunkt des Frames mit der groessten Uebereinstimmung.
 Ab diesem Zeitpunkt faehrt der Film dann ohne einen stoerenden Uebergang fort.
 
+.Last-Frame-Differenz von Video-1 ueber Video-2
+image::overlap.svg[]
+
+Der obere Graph zeigt, die Differenz eines des letzten Framens von Video-1 ueber
+die erste Minute von Video-2.
+Dabei wird nach ca. sechs Sekunden der kleinste Wert ermittelt.
+Dieses Minimum ist auch genau der Punkt, andem die Ueberlapung endet.
+Beim Zusammenschneiden der beiden Videoteile kann also bei Video-2 die ersten
+sechs Sekunden herrauslassen.
+
 == Literatur
 
 * Thorsten Janke and Markus Koppers. ``Optimierung und Implementierung
diff --git a/doc/image/overlap.svg b/doc/image/overlap.svg
new file mode 100644
index 0000000..0e4bcfe
--- /dev/null
+++ b/doc/image/overlap.svg
@@ -0,0 +1,302 @@
+<?xml version="1.0" encoding="utf-8"  standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" 
+ "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg viewBox="0 0 800 600"
+ xmlns="http://www.w3.org/2000/svg"
+ xmlns:xlink="http://www.w3.org/1999/xlink"
+>
+
+<desc>Produced by GNUPLOT 4.4 patchlevel 3 </desc>
+
+<defs>
+
+	<circle id='gpDot' r='0.5' stroke-width='0.5'/>
+	<path id='gpPt0' stroke-width='0.222' stroke='currentColor' d='M-1,0 h2 M0,-1 v2'/>
+	<path id='gpPt1' stroke-width='0.222' stroke='currentColor' d='M-1,-1 L1,1 M1,-1 L-1,1'/>
+	<path id='gpPt2' stroke-width='0.222' stroke='currentColor' d='M-1,0 L1,0 M0,-1 L0,1 M-1,-1 L1,1 M-1,1 L1,-1'/>
+	<rect id='gpPt3' stroke-width='0.222' stroke='currentColor' x='-1' y='-1' width='2' height='2'/>
+	<rect id='gpPt4' stroke-width='0.222' stroke='currentColor' fill='currentColor' x='-1' y='-1' width='2' height='2'/>
+	<circle id='gpPt5' stroke-width='0.222' stroke='currentColor' cx='0' cy='0' r='1'/>
+	<use xlink:href='#gpPt5' id='gpPt6' fill='currentColor' stroke='none'/>
+	<path id='gpPt7' stroke-width='0.222' stroke='currentColor' d='M0,-1.33 L-1.33,0.67 L1.33,0.67 z'/>
+	<use xlink:href='#gpPt7' id='gpPt8' fill='currentColor' stroke='none'/>
+	<use xlink:href='#gpPt7' id='gpPt9' stroke='currentColor' transform='rotate(180)'/>
+	<use xlink:href='#gpPt9' id='gpPt10' fill='currentColor' stroke='none'/>
+	<use xlink:href='#gpPt3' id='gpPt11' stroke='currentColor' transform='rotate(45)'/>
+	<use xlink:href='#gpPt11' id='gpPt12' fill='currentColor' stroke='none'/>
+</defs>
+<g style="fill:none; color:white; stroke:currentColor; stroke-width:1.00; stroke-linecap:butt; stroke-linejoin:miter">
+</g>
+<g style="fill:none; color:black; stroke:currentColor; stroke-width:1.00; stroke-linecap:butt; stroke-linejoin:miter">
+	<path  d='M63.6,542.4 L72.6,542.4 M775.0,542.4 L766.0,542.4 '></path>
+	<g transform="translate(55.3,546.9)" style="stroke:none; fill:black; font-family:Arial; font-size:12.00pt; text-anchor:end">
+		<text> 0</text>
+	</g>
+	<path  d='M63.6,476.7 L72.6,476.7 M775.0,476.7 L766.0,476.7 '></path>
+	<g transform="translate(55.3,481.2)" style="stroke:none; fill:black; font-family:Arial; font-size:12.00pt; text-anchor:end">
+		<text> 10</text>
+	</g>
+	<path  d='M63.6,411.0 L72.6,411.0 M775.0,411.0 L766.0,411.0 '></path>
+	<g transform="translate(55.3,415.5)" style="stroke:none; fill:black; font-family:Arial; font-size:12.00pt; text-anchor:end">
+		<text> 20</text>
+	</g>
+	<path  d='M63.6,345.3 L72.6,345.3 M775.0,345.3 L766.0,345.3 '></path>
+	<g transform="translate(55.3,349.8)" style="stroke:none; fill:black; font-family:Arial; font-size:12.00pt; text-anchor:end">
+		<text> 30</text>
+	</g>
+	<path  d='M63.6,279.5 L72.6,279.5 M775.0,279.5 L766.0,279.5 '></path>
+	<g transform="translate(55.3,284.0)" style="stroke:none; fill:black; font-family:Arial; font-size:12.00pt; text-anchor:end">
+		<text> 40</text>
+	</g>
+	<path  d='M63.6,213.8 L72.6,213.8 M775.0,213.8 L766.0,213.8 '></path>
+	<g transform="translate(55.3,218.3)" style="stroke:none; fill:black; font-family:Arial; font-size:12.00pt; text-anchor:end">
+		<text> 50</text>
+	</g>
+	<path  d='M63.6,148.1 L72.6,148.1 M775.0,148.1 L766.0,148.1 '></path>
+	<g transform="translate(55.3,152.6)" style="stroke:none; fill:black; font-family:Arial; font-size:12.00pt; text-anchor:end">
+		<text> 60</text>
+	</g>
+	<path  d='M63.6,82.4 L72.6,82.4 M775.0,82.4 L766.0,82.4 '></path>
+	<g transform="translate(55.3,86.9)" style="stroke:none; fill:black; font-family:Arial; font-size:12.00pt; text-anchor:end">
+		<text> 70</text>
+	</g>
+	<path  d='M63.6,16.7 L72.6,16.7 M775.0,16.7 L766.0,16.7 '></path>
+	<g transform="translate(55.3,21.2)" style="stroke:none; fill:black; font-family:Arial; font-size:12.00pt; text-anchor:end">
+		<text> 80</text>
+	</g>
+	<path  d='M63.6,542.4 L63.6,533.4 M63.6,16.7 L63.6,25.7 '></path>
+	<g transform="translate(63.6,564.9)" style="stroke:none; fill:black; font-family:Arial; font-size:12.00pt; text-anchor:middle">
+		<text> 0</text>
+	</g>
+	<path  d='M182.2,542.4 L182.2,533.4 M182.2,16.7 L182.2,25.7 '></path>
+	<g transform="translate(182.2,564.9)" style="stroke:none; fill:black; font-family:Arial; font-size:12.00pt; text-anchor:middle">
+		<text> 10</text>
+	</g>
+	<path  d='M300.7,542.4 L300.7,533.4 M300.7,16.7 L300.7,25.7 '></path>
+	<g transform="translate(300.7,564.9)" style="stroke:none; fill:black; font-family:Arial; font-size:12.00pt; text-anchor:middle">
+		<text> 20</text>
+	</g>
+	<path  d='M419.3,542.4 L419.3,533.4 M419.3,16.7 L419.3,25.7 '></path>
+	<g transform="translate(419.3,564.9)" style="stroke:none; fill:black; font-family:Arial; font-size:12.00pt; text-anchor:middle">
+		<text> 30</text>
+	</g>
+	<path  d='M537.9,542.4 L537.9,533.4 M537.9,16.7 L537.9,25.7 '></path>
+	<g transform="translate(537.9,564.9)" style="stroke:none; fill:black; font-family:Arial; font-size:12.00pt; text-anchor:middle">
+		<text> 40</text>
+	</g>
+	<path  d='M656.4,542.4 L656.4,533.4 M656.4,16.7 L656.4,25.7 '></path>
+	<g transform="translate(656.4,564.9)" style="stroke:none; fill:black; font-family:Arial; font-size:12.00pt; text-anchor:middle">
+		<text> 50</text>
+	</g>
+	<path  d='M775.0,542.4 L775.0,533.4 M775.0,16.7 L775.0,25.7 '></path>
+	<g transform="translate(775.0,564.9)" style="stroke:none; fill:black; font-family:Arial; font-size:12.00pt; text-anchor:middle">
+		<text> 60</text>
+	</g>
+	<path  d='M63.6,16.7 L63.6,542.4 L775.0,542.4 L775.0,16.7 L63.6,16.7 Z '></path>
+	<g transform="translate(17.6,279.6) rotate(270)" style="stroke:none; fill:black; font-family:Arial; font-size:12.00pt; text-anchor:middle">
+		<text>diff</text>
+	</g>
+	<g transform="translate(419.3,591.9)" style="stroke:none; fill:black; font-family:Arial; font-size:12.00pt; text-anchor:middle">
+		<text>Zeit [sec]</text>
+	</g>
+</g>
+	<a xlink:title="Plot #1">
+<g style="fill:none; color:red; stroke:currentColor; stroke-width:1.00; stroke-linecap:butt; stroke-linejoin:miter">
+	<g transform="translate(707.9,39.2)" style="stroke:none; fill:black; font-family:Arial; font-size:12.00pt; text-anchor:end">
+		<text>diff</text>
+	</g>
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+		L726.6,157.0 L727.1,154.7 L727.6,153.6 L728.0,152.0 L728.5,156.6 L729.0,160.4 L729.5,148.4 L729.9,143.9 
+		L730.4,140.1 L730.9,152.4 L731.4,156.6 L731.8,146.4 L732.3,144.7 L732.8,145.1 L733.3,153.3 L733.7,153.5 
+		L734.2,142.5 L734.7,141.5 L735.2,136.8 L735.6,141.4 L736.1,142.1 L736.6,133.8 L737.1,138.0 L737.5,140.7 
+		L738.0,153.6 L738.5,153.9 L739.0,144.8 L739.4,145.4 L739.9,146.5 L740.4,156.0 L740.9,153.7 L741.3,149.9 
+		L741.8,148.5 L742.3,153.2 L742.7,160.7 L743.2,156.4 L743.7,157.2 L744.2,157.6 L744.6,158.2 L745.1,161.5 
+		L745.6,157.8 L746.1,164.4 L746.5,124.5 L747.0,133.1 L747.5,121.7 L748.0,105.5 L748.4,102.0 L748.9,102.2 
+		L749.4,119.3 L749.9,124.4 L750.3,114.9 L750.8,113.6 L751.3,116.0 L751.8,129.7 L752.2,129.2 L752.7,117.9 
+		L753.2,119.0 L753.7,124.5 L754.1,133.3 L754.6,133.1 L755.1,126.6 L755.6,122.8 L756.0,122.8 L756.5,132.9 
+		L757.0,127.7 L757.5,123.4 L757.9,125.9 L758.4,132.0 L758.9,139.3 L759.3,133.1 L759.8,127.5 L760.3,128.6 
+		L760.8,139.1 L761.2,141.6 L761.7,133.1 L762.2,131.5 L762.7,132.2 L763.1,141.4 L763.6,136.9 L764.1,125.1 
+		L764.6,120.0 L765.0,121.0 L765.5,130.2 L766.0,138.3 L766.5,132.2 L766.9,136.8 L767.4,142.7 L767.9,141.5 
+		L768.4,140.3 L768.8,118.4 L769.3,122.2 L769.8,117.7 L770.3,127.2 L770.7,126.4 L771.2,121.7 L771.7,117.6 
+		L772.2,119.3 L772.6,128.5 L773.1,125.1 L773.6,120.3 L774.1,117.7 L774.5,123.0 L775.0,133.4 '></path>
+</g>
+	</a>
+<g style="fill:none; color:black; stroke:currentColor; stroke-width:1.00; stroke-linecap:butt; stroke-linejoin:miter">
+	<path  d='M63.6,16.7 L63.6,542.4 L775.0,542.4 L775.0,16.7 L63.6,16.7 Z '></path>
+</g>
+</svg>
+
diff --git a/src/draw.plot b/src/draw.plot
index 06e521c..b6428c4 100644
--- a/src/draw.plot
+++ b/src/draw.plot
@@ -4,10 +4,12 @@ set terminal svg size 800,600 dynamic;
 set ylabel 'diff'
 set xlabel 'Zeit [sec]'
 
+set output "../doc/image/avg.svg";
+plot	'data.txt' using ($1 / 1000):2 with lines lt rgb "#204a87" title "average"
+
 set output "../doc/image/cuts.svg";
 plot	'data.txt' using ($1 / 1000):2 with lines lt rgb "#204a87" title "average", \
-	'data.txt' using ($1 / 1000):3 with lines lt rgb "#a40000" title "diff",    \
-	'data.txt' using ($1 / 1000):4 with lines lt rgb "#4e9a06" title "rise";
+	'data.txt' using ($1 / 1000):3 with lines lt rgb "#a40000" title "diff"
 
 set output "../doc/image/cuts_diff.svg";
 plot	'data.txt' using ($1 / 1000):3 with lines lt rgb "#a40000" title "diff",    \