Three different images were used for the experiment.
a)
Characteristics: Low mean brightness. Correspond to taking photos at low
illumination (eg at night).
Correspond to taking a photo at normal (brighter) condition.
Characteristics: High mean brightness. Correspond to taking photos at high
illumination (eg bright daylight)
The position of the camera lens is progressively adjusted to take 21
frames for each of the three images.
These frames are then used to analyse the different algorithms.
Software used for analysis : Matlab
b) 
c)