Moodbar Distance

Overview

The Distance Function in this Module works with the following providers:

• munin.provider.moodbar.MoodbarProvider
• munin.provider.moodbar.MoodbarMoodFileProvider
• munin.provider.moodbar.MoodbarAudioFileProvider

Technical Details:

The individual attributes are weighted and computes as following:

Name	Weight	Formula
diffsum	0.135	abs(v1 - v2) / 50
histogram	0.135	1.0 - sum(a - b for a, b in lefts, rights) / 5 * 255
dominant colors	0.63	len(common) / max(len(lefts), len(rights))
blackness	0.05	abs(v1 - v2) / 50
average min/max	0.05	abs(v1 - v2) / 255
	1.0

Reference

class munin.distance.moodbar.MoodbarDistance(provider=None)

Distance Function that compares two MoodbarDescriptions.

This class is supposed to be overriden, but can also be used as fallback.

__call__ is implemented as shortcut to compute()

Parameters:name (String.) – Name of the DistanceFunction (used for display)

do_compute(lefts, rights)

Compute the distance between two moodbar desc

Only the first element in the individual lists is used.

Parameters:

• lefts – Packed left moodbar description.
• rights – Packed right moodbar description.