====== Trend Calculation for Analyzer ======

//30 October 2001//

Implemented the trend calculation for the [[:glossary:cta|analyser]]. This is quite useful to automate [[:glossary:track|track]] type recognition. As a consequence, the [[:glossary:density graph|density graphs]] changed. The original data is shown in the background with a lighter color, while the trend data is shown in blue.

{{ :track:normal.png |Trend 1: Normal Track}}\\
{{ :track:copylock.png |Trend 2: Copylock Track}}\\
{{ :track:noise.png |Trend 3: Unwritten Track ("noise")}}\\
{{ :track:longnoise.png |Trend 4: Long Track, Partially Unwritten}}\\

The "long track, with partially unwritten data" is quite interesting, since noise can't be detected properly without mathematical analysis, it clearly shows the [[:glossary:long track|long track]] capacity is only used to fool copiers, but removing the noise the track can be perfectly fit into a normal track. That means, this type of protection is remasterable, when noise is removed.