Visualization of image distortions:

image distortion: under-exposure (c=1/2)
under-exposure (c=1/2)
image distortion: under-exposure (c=1/3)
under-exposure (c=1/3)
image distortion: under-exposure (c=1/4)
under-exposure (c=1/4)
image distortion: under-exposure (c=1/5)
under-exposure (c=1/5)
image distortion: under-exposure (c=1/10)
under-exposure (c=1/10)
image distortion: under-exposure (c=1/20)
under-exposure (c=1/20)
image distortion: under-exposure (c=1/50)
under-exposure (c=1/50)
image distortion: under-exposure (c=1/100)
under-exposure (c=1/100)