Class  Description 

AvgBrightness 
Extract the average brightness of an image.

Colorfulness 
Implementation of Hasler and Susstruck's Colorfulness metric
http://infoscience.epfl.ch/record/33994/files/HaslerS03.pdf?version=1

ColourContrast 
Implementation of a color contrast feature.

Gist<IMAGE extends Image<?,IMAGE> & SinglebandImageProcessor.Processable<Float,FImage,IMAGE>> 
Implementation of the "Gist" spatial envelope feature.

HorizontalIntensityDistribution 
Produce a feature vector that describes the average intensity
distribution across the from left to right.

HueStats 
A twovalued summary representing mean hue (in radians) and variance of hue
respectively.

LRIntensityBalance 
Implementation of the intensity balance algorithm described by Yeh et al.

LuoSimplicity 
Estimate the simplicity of an image by looking at the colour distribution of
the background using the algorithm defined by Yiwen Luo and Xiaoou Tang.

ModifiedLuoSimplicity 
Estimate the simplicity of an image by looking at the colour distribution of
the background.

Naturalness 
Implementation of the Naturalness index (CNI) defined by Huang, Qiao & Wu.

RGBRMSContrast 
Implementation of the RGB RMS contrast feature.

RMSContrast 
Implementation of the RMS contrast feature.

ROIProportion 
Implementation of the region of interest based image simplicity measure
described by Yeh et al.

RuleOfThirds 
Implementation of the ruleofthirds algorithm described by Yeh et al.

Saturation 
Estimate the saturation of an image using the RGB approximation of
avg(max(R,G,B)  min(R,G,B)).

SaturationVariation 
Estimate the variation in saturation of an image using the RGB approximation
of avg(max(R,G,B)  min(R,G,B)).

Sharpness 
Sharpness measures the clarity and level of detail of an image.

SharpnessVariation 
Sharpness measures the clarity and level of detail of an image.

SharpPixelProportion 
Implementation of the blur estimation feature described by Ke, Tang and Jing,
and Yeh et al.

WeberContrast 
Implementation of the Weber contrast feature.

YehBokehEstimator 
Implementation of the Bokeh estimation feature described by Yeh et al.

Enum  Description 

AvgBrightness.Mode 
Modes for computing brightness.

Colorfulness.ColorfulnessAttr 
Classes of colourfulness

HueStats.ToneAttr 
Tonal attributes for images based on the mean hue and variance.
